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/ Vitamin C for Picky Eaters: What the Evidence Says, and How Much a Child Actually Needs
Children ages 1–3 need 15 mg of vitamin C daily, ages 4–8 need 25 mg, and ages 9–13 need 45 mg, per the Institute of Medicine’s Dietary Reference Intakes. Fruits and vegetables are the main dietary sources, and in 2021 nearly half of US children aged 1 to 5 did not eat a vegetable every day. Vitamin C is water-soluble and the body keeps only a limited pool, so regular daily intake matters more than any single large dose. At these nutritional levels, vitamin C supports a healthy immune system, promotes collagen formation for bone, teeth, skin and tissue, provides antioxidant support, and helps support absorption of iron from plant foods.*
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Why Daily Vitamin C Matters When a Child Refuses Produce
You know the dinner script. Vegetables pushed to the rim of the plate. Fruit ignored. Crackers, plain pasta, “I’m not hungry” the second anything green shows up. And underneath all of it, the mental arithmetic about what actually got eaten.
That worry isn’t neurotic, and it isn’t unusual. In 2021, 49.1% of US children aged 1 to 5 did not eat a vegetable every day in the preceding week, and 32.1% did not eat a fruit every day, based on parent report in the National Survey of Children’s Health (Hamner et al., MMWR, 2023; n = 18,386). In 20 states, more than half of young children did not eat a vegetable daily. So the kid pushing broccoli to the rim of the plate isn’t an outlier. That’s close to half the country’s toddlers and preschoolers, and fruits and vegetables are the main dietary sources of vitamin C.
Vitamin C is water-soluble. The body maintains a limited pool rather than a large reserve, and unmetabolized excess is excreted in urine (NIH Office of Dietary Supplements). Regular daily intake matters more than any single large dose.
Plant-C™ Kids is a dual whole-food vitamin C liquid for parents of produce-refusing picky eaters ages 1–13 who want daily vitamin C coverage without sugar, synthetics, or another mealtime fight. Its vitamin C comes from two organic fruits, amla and acerola cherry, each bringing its own polyphenol family, in an alcohol-free organic vegetable-glycerin base with no added sugar and no synthetic ascorbic acid. The marked dropper delivers 0.5 mL for a toddler, 1.0 mL for a school-age child, 1.5 mL for a tween. At these nutritional levels, vitamin C supports a healthy immune system and promotes collagen formation for bone, teeth, skin and tissue.*
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
How Two Whole Fruits Cover the Vitamin C a Picky Eater Misses, Without Sugar or Synthetics
Whole-food vitamin C from two organic fruits: amla and acerola cherry. One bottle, ages 1–13.
Plant-C™ Kids is an organic whole-food vitamin C liquid from Triquetra Health, built for parents of produce-refusing picky eaters ages 1–13. Organic amla and organic acerola cherry together carry the labeled vitamin C, and each brings a chemically distinct polyphenol profile.
The formula is 30 mg of vitamin C per milliliter in an alcohol-free organic vegetable-glycerin base, with no added sugar and no artificial colors or flavors. Each serving is measured on the marked dropper: 0.5 mL for ages 1–3, 1.0 mL for ages 4–8, 1.5 mL for ages 9–13. At these nutritional levels, vitamin C supports a healthy immune system, promotes collagen formation for bone, teeth, skin and tissue, provides antioxidant support, and helps support absorption of iron from plant foods.* Every batch is backed by published batch Certificates of Analysis for heavy metals and glyphosate, and the formula ships in amber glass.
What separates this from the rest of the clean-label shelf is the source. Vitamin C from whole fruit, not a synthetic isolate, and two fruits rather than one. Nothing here rests on a novel-product outcome. It rests on some of the most settled biology in nutrition science, at an amount matched to your child’s age band.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
See how the dosing works ↓
Is Picky Eating Normal? Yes, and What It Leaves Out Is Fixable
Beige-carb dinner again. Crackers, buttered pasta, maybe cheese. Broccoli untouched, fruit bowl unvisited, and once the plates are cleared you’re running the numbers on what actually got eaten. That’s not anxiety talking. That’s paying attention.
Then comes the detection problem. You’ve blended spinach into the smoothie, grated zucchini into the sauce, pureed cauliflower into the mac and cheese. It gets found. Every time. Playing short-order chef and nutrition smuggler in the same evening is exhausting, and it’s a strategy that only works if it succeeds daily.
Underneath both sits the guilt: that sense of losing at something that should be straightforward. You’ve tried the gummies and didn’t love the sugar. You’ve tried the chalky chewables and watched them rejected on texture alone. You’ve tried pills your kid won’t swallow. Every attempt ends the same way, with a product on the shelf and the same question unanswered.
Here’s what should change the frame. Your child’s narrow diet isn’t a verdict on your parenting. Nearly half of American children aged 1 to 5 don’t eat a vegetable every day (Hamner et al., MMWR, 2023). Picky eating is developmentally normal, and covering daily vitamin C intake is a dietary-pattern question, not a parenting one. It takes about ten seconds a day.*
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Why Every Kids’ Vitamin C You’ve Tried Traded One Problem for Another
Every option on that shelf earns its audience for a real reason, and every one of them gives something up. These aren’t bad products. They were built to solve a different problem than the one sitting in your kitchen, and the compromises land hardest on the household trying to cut sugar and synthetics at the same time.
Credit where it’s due first: gummies earn their popularity honestly. Kids take them without a fight, and compliance is the whole ballgame with any supplement. The trade-offs are compositional rather than about efficacy. Gummies that use a synthetic isolate in a sugar-based matrix add sugar to a child’s day; those with added colors add those too; and because they taste like candy, dosing can drift when a child asks for one more. If your goal is reducing sugar and synthetics, the format works against you. A dropper liquid resolves that at the composition level: vitamin C from whole fruit, no added sugar, and a measured serving rather than a poppable one.
Single-source organic liquids are genuinely good products. Organic, whole-food, sugar-free, glass dropper. They just tend to make the same single choice: one fruit, usually acerola. If you’re comparing near-identical clean labels, that’s the axis that differentiates them, because one fruit means one polyphenol profile. Plant-C™ Kids carries acerola’s anthocyanins and flavonoids alongside amla’s ellagitannins, two chemically distinct polyphenol families. That’s a compositional difference, not a claim about absorption or effectiveness.
Then there’s the food-first argument, which is the gold standard and deserves respect rather than dismissal. No supplement replaces a good diet. But with a produce-refusing picky eater it keeps failing in practice: hidden vegetables get detected and refused, and smoothies are inconsistent and effortful. This isn’t a replacement for the fruit bowl. It’s a daily backstop, delivered in ten seconds and in a form the child accepts without a negotiation.
One more concession is worth naming, because it cuts across every category above. A brand can list its certifications and still keep its laboratory results private. Plant-C™ Kids publishes batch Certificates of Analysis for heavy metals and glyphosate instead, and there’s more on how to read one further down.
The missing piece was never a cleverer flavor. It was sourcing the nutrient from whole fruit, and from more than one.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
What Do Amla and Acerola Each Contribute?
Polyphenols are the plant compounds that ride along with vitamin C in real fruit and contribute antioxidant activity of their own. This is where the dual-source approach earns its name, and also where the honest limits of the whole-food story need saying out loud.
Amla: Vitamin C Plus a Second Polyphenol Family
Organic amla (Phyllanthus emblica), the Indian gooseberry, is listed at 252 ± 30.4 mg of vitamin C per 100 g in the ICMR-NIN Indian Food Composition Tables (2017), the highest of any fruit in those tables, ahead of pink guava at 222 mg. Published figures across the wider literature vary widely with cultivar, ripeness and analytical method, with peer-reviewed reviews reporting roughly 207 to 932 mg per 100 g (Alkandari et al., 2019). A frequently quoted 600 mg figure traces to the 1951 fourth edition of Health Bulletin No. 23 and appears in IFCT 2017 only in its historical preface. It should not be attributed to the current tables.
What amla adds is a completely different polyphenol family from acerola’s: hydrolysable tannins including ellagitannins, which break down into gallic and ellagic acids, along with corilagin, punigluconin, pedunculagin, quercetin and kaempferol. Two compounds often named in amla marketing, emblicanins A and B, are not asserted here. Majeed et al. (2009) found no evidence for them and re-identified the compounds in question as beta-glucogallin and a mucic acid lactone gallate, and that disagreement is unresolved.
How Much Vitamin C Does Amla Really Contain?
Genuinely contested, and we would rather show you the argument than pick the flattering side of it. An older analysis reported that Emblica fruits contain no free or conjugated ascorbic acid at all, attributing their activity entirely to hydrolysable tannins (Ghosal et al., 1996). Later work using more specific analytical methods has measured ascorbic acid in the fruit: Scartezzini et al. (2006) found 0.4% w/w in raw fruit, rising to 1.28% after traditional Ayurvedic processing. But the quantity is heavily method-dependent. Raghu et al. (2007) compared four assays and found the conventional 2,4-DNPH method returns 389 to 560 mg per 100 g while three more specific methods return 110 to 287 mg, meaning the conventional assay overestimates by roughly two- to four-fold.
A later industry analysis argued that reported values are inflated by co-eluting mucic acid gallates (Majeed et al., 2009). We therefore use India’s national reference value rather than a figure from any single study. For the material in this formula the question is settled empirically rather than from the literature: the organic amla fruit extract used here is a water extract at a 40–50:1 ratio, specified at not less than 50% vitamin C and confirmed by HPLC assay per batch. That vitamin C is native to the fruit on a dried-fruit basis, and no ascorbic acid is added to standardize it. The panel attributes the labeled vitamin C to both fruits together rather than to either one alone.
Acerola: Vitamin C in a Small Volume
Organic acerola cherry (Malpighia emarginata) is one of the most vitamin-C-dense fruits measured. USDA FoodData Central lists it at roughly 1,680 mg of vitamin C per 100 g, about 30 times that of a raw orange at 53 mg per 100 g. Published values span roughly 1,000 to 4,500 mg per 100 g across cultivars, ripeness and analytical methods (Prakash & Baskaran, 2018). That density is why both fruits can deliver the labeled vitamin C in a volume small enough for a child to take from a dropper. Acerola also brings its own anthocyanins, hydroxycinnamic acids and flavonoids, so the vitamin arrives alongside the polyphenols carried through into the standardized extract rather than alone.
Why Two Fruits, Not One, and What It Does Not Mean
The two fruits aren’t redundant. They contribute chemically distinct polyphenol classes. That is the reason for carrying both.
What we won’t claim is that their antioxidant capacities add together in any measured way. No published study has tested this specific pairing, and the literature on plant-extract combinations shows that interactions in antioxidant assays can be additive, synergistic, or antagonistic depending on the pair and the assay used (Olszowy-Tomczyk, 2020, Phytochemistry Reviews). Two different polyphenol profiles is a compositional fact. Quantified combined antioxidant capacity is not something we have data for, and we won’t imply otherwise.
It also doesn’t mean better absorption. A randomized, parallel-arm steady-state trial in 36 young non-smoking adult males, 18 per group, 50 mg per day for six weeks, found vitamin C from gold kiwifruit comparable to synthetic ascorbic acid, with no significant difference in plasma, 24-hour urine, mononuclear cells, neutrophils or skeletal muscle ascorbate (Carr et al., 2013; part-funded by Zespri International). A systematic review of all steady-state comparative bioavailability studies in humans reached the same conclusion across populations and designs (Carr & Vissers, 2013). That comparison was kiwifruit-specific. Acerola and amla have not been tested this way.
We’ll never tell you otherwise. The whole-food difference is source, polyphenol breadth, and a clean label. Those are real. The nutrient itself, once absorbed, does the work established across decades of research: it is required as a cofactor for collagen formation (Rahimi & Launico, StatPearls, 2026), and it accumulates in immune cells where maintaining daily adequacy supports normal immune function (Carr & Maggini, 2017).*
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
What Does Daily Vitamin C Adequacy Actually Do for a Growing Child?
Vitamin C has four well-established jobs in a growing body. None of them require a megadose. All of them depend on regular intake, because the body doesn’t stockpile large reserves.
Supports a Healthy Immune System Day to Day
Vitamin C accumulates in phagocytic cells including neutrophils at 50 to 100 times plasma concentrations, where it supports chemotaxis, phagocytosis, microbial killing, clearance of spent neutrophils, and epithelial barrier function (Carr & Maggini, 2017). Maintaining daily adequacy is what supports a healthy immune system.*
In practice it’s a few berry drops into the water cup before the door. Ten seconds, same time each day.
For a parent, that’s one less thing to think about on a nutrient that comes mostly from produce, and doing it without adding sugar to the morning.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Promotes Collagen Formation for Bone, Teeth, Skin and Tissue
Proline and lysine residues in procollagen undergo hydroxylation via prolyl and lysyl hydroxylase, a process that requires vitamin C as a cofactor. Without adequate vitamin C, hydroxylation is impaired and the resulting collagen is unstable, with reduced tensile strength (Rahimi & Launico, StatPearls, 2026). Vitamin C promotes collagen formation for bone, teeth, skin and tissue.*
An inch a season. Baby teeth coming out. Scraped knees healing. The nutrient side of that is covered.
That’s the confidence of supporting the actual scaffolding of a growing body, not checking a box.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Provides Antioxidant Support
Vitamin C is the primary water-soluble, non-enzymatic antioxidant in plasma and tissues, and it participates in redox recycling of other antioxidants, including regenerating vitamin E from its oxidized form (Linus Pauling Institute, Oregon State University). Here it arrives alongside the polyphenol matrix the two fruits bring with them: acerola’s anthocyanins plus amla’s hydrolysable tannins, two chemically distinct families rather than one.*
More complete, in other words, not stripped down to a single molecule.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Helps Support Absorption of Iron From Plant Foods
Vitamin C reduces dietary ferric iron (Fe³⁺) to the more absorbable ferrous form (Fe²⁺) and forms an absorbable iron–ascorbic acid complex, counteracting the phytate and polyphenol inhibitors common in plant foods (Linus Pauling Institute, Oregon State University). The complex forms at acid pH and remains soluble at the alkaline pH of the duodenum (Lynch & Cook, 1980).
A note on that, because this page also talks up amla’s tannins. Dietary tannins from foods like tea can inhibit non-heme iron absorption. At the serving sizes here, the polyphenol quantity the formula contributes is very small compared with a cup of tea, and the ascorbate is present in molar excess.
The clinical picture is favorable but nuanced, and worth stating precisely. Nyakundi et al. (American Journal of Clinical Nutrition, 2026) pooled 15 randomized and controlled trials covering 1,381 participants, females aged 15 to 74 and children. They found moderate-certainty evidence that consuming ascorbate-rich fruits or juices with meals probably increases serum ferritin and hemoglobin, and high-certainty evidence of a slight reduction in serum transferrin receptor. Certainty was low for iron absorption itself, and the review found high-certainty evidence of little to no effect on total body iron stores.
The enhancement is also strongest per meal. Ascorbate reliably improves non-heme iron absorption from individual meals, with a substantially smaller effect measured across a complete diet (Cook & Reddy, 2001). So timing matters more than amount: give the serving alongside the iron-rich plant meal itself, meaning lentils, beans, tofu, greens or fortified grains. Talk to your pediatrician about your child’s iron status before making changes.*
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
How Much Vitamin C Does a Child Need at Each Age?
The vitamin a toddler needs and the vitamin a tween needs are the same vitamin C. Only the quantity shifts with age, following pediatric Recommended Dietary Allowances of 15 mg for ages 1–3, 25 mg for ages 4–8, and 45 mg for ages 9–13, both sexes (Institute of Medicine, Dietary Reference Intakes, 2000). One 30 mg/mL concentration on a marked dropper covers that entire span.
A note on labels, because this trips up a lot of careful parents. FDA’s Daily Value for vitamin C is 90 mg for adults and children 4 and older, per 21 CFR 101.9(c)(8)(iv), so the %DV on a Supplement Facts panel is not the same thing as the age-band RDA. For a school-age child, 30 mg is 120% of the 25 mg RDA for ages 4–8; for a tween, 45 mg is 100% of the 45 mg RDA for ages 9–13. Against the FDA Daily Value, those same servings read 33% and 50%. For ages 1–3, the 0.5 mL serving provides 15 mg of vitamin C. The RDA is the figure that reflects what a child of that age actually needs.
Practically: the toddler gets 10 drops, the fourth-grader gets 30 drops, same bottle, same shelf. And because younger children take the smallest servings, one 60 mL (2 oz) bottle stretches to about 120 toddler servings.
For a two- or three-child household that’s one product instead of three, one re-order instead of three, and no re-purchase triggered by a birthday.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
What’s the Evidence Behind Every Claim on This Page, Including What Hasn’t Been Studied?
This page anchors its authority to nutrient biochemistry and to purity documentation, because those are the two things anyone can actually verify. Here’s the whole evidence base, edges included.
Collagen formation, established enzymology. Vitamin C is required as a cofactor for prolyl and lysyl hydroxylase; inadequacy impairs hydroxylation and yields unstable collagen. Source: Rahimi & Launico, Biochemistry, Collagen Synthesis, StatPearls, updated June 18, 2026.
Immune function, mechanistic review. Vitamin C accumulates in phagocytes at 50 to 100 times plasma concentrations and supports chemotaxis, phagocytosis, microbial killing, clearance and epithelial barrier function. Source: Carr & Maggini (2017). This is a narrative review rather than primary human evidence, and its pediatric content is case-level. No randomized trial has tested whether vitamin C supplementation improves immune function in healthy, vitamin-C-replete children, and we make no such claim. Disclosures noted in the reference list.
Non-heme iron absorption, peer-reviewed systematic review and meta-analysis. Moderate-certainty evidence that ascorbate-rich fruits or juices with meals probably increase serum ferritin and hemoglobin; high-certainty evidence of a slight reduction in serum transferrin receptor; low certainty for iron absorption; high-certainty evidence of little to no effect on total body iron stores. Source: Nyakundi et al. (2026). The enhancement is smaller across a complete diet than in single test meals (Cook & Reddy, 2001), which is why the guidance here is about meal timing.
Bioavailability parity, the guardrail. A randomized controlled trial and a systematic review of comparative bioavailability studies both found no difference between synthetic and food-derived vitamin C. Sources: Carr et al. (2013); Carr & Vissers (2013).
Population dietary-pattern context. In 2021, 49.1% of US children aged 1–5 did not eat a vegetable daily and 32.1% did not eat a fruit daily. Source: Hamner et al. (2023). Cited as population dietary context, never as a diagnosis or nutrient-status claim about any individual child.
Age-band reference intakes and upper limits. Institute of Medicine (2000). Every serving sits roughly 22 to 27 times below its age-band tolerable upper intake level: 15 mg against a 400 mg UL, 30 mg against 650 mg, 45 mg against 1,200 mg.
What Hasn’t Been Studied, Stated Plainly
There is no finished-product clinical trial for Plant-C™ Kids , and none is expected for a nutritional adequacy product. Every claim on this page rests on established vitamin C biology or on a verifiable compositional fact, never on a novel-product outcome.
No randomized controlled trial supports the immune, collagen or antioxidant claims on this page. Those rest on established biochemistry and mechanistic review, which is a legitimate basis for a structure/function claim, and none of them is presented as trial-backed.
Acerola human data beyond vitamin C delivery is limited, and largely in vitro and animal. Characterize it conservatively; we do.
Amla’s human trials are adult, high-dose and cardiometabolic, at 500 to 1,000 mg extract doses far above a pediatric vitamin C serving. They are deliberately excluded from any pediatric or immune claim here.
The iron-absorption evidence comes from trials in females aged 15 to 74 and in children, not from trials in this age band with this product; it supports the nutrient’s role, not a pediatric outcome.
The combined antioxidant capacity of amla plus acerola has never been measured in a published study. We describe the two polyphenol families as chemically distinct, which is verifiable, and make no quantitative claim about what they do together.
Everything above is the reason the claims on this page are worded the way they are, and not more strongly.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
How Does Plant-C™ Kids Compare to Gummies, Synthetic Liquids and Single-Source Organics?
A comparison that recommends one product for everything teaches you to distrust it. So where another option is genuinely the better call, this says so.
Category descriptions on this page reflect a review of children’s vitamin C products listed as of September 2026.
When Choosing Vitamin C for a Picky Eater (Ages 1–13)
FOR PARENTS AVOIDING ADDED SUGAR
✓ Optimal: Whole-food liquid drops, Plant-C™ Kids : no added sugar, organic vegetable-glycerin base, dropper-measured
○ Alternative: Sugar-free melty tabs: no added sugar, but a fixed dose and a chewed format
✗ Weakest fit for this priority: Sugar gummies: added sugar, and a candy-like format makes extra servings easy
FOR WHOLE-FOOD SOURCING PRIORITY
✓ Optimal: Plant-C™ Kids: vitamin C from two organic fruits, amla and acerola cherry, no synthetic ascorbic acid
○ Alternative: Single-source organic acerola or amla liquids: genuinely whole-food, but one fruit and one polyphenol profile
✗ Weakest fit for this priority: Synthetic-isolate liquids: sodium ascorbate or ascorbic acid, commonly with added fructose and a preservative
FOR POLYPHENOL BREADTH
✓ Optimal: Plant-C™ Kids: amla hydrolysable tannins alongside acerola anthocyanins, two distinct polyphenol families
○ Alternative: Acerola-only organic liquids: anthocyanin profile only
✗ Weakest fit for this priority: Isolated ascorbic acid: the vitamin with no accompanying fruit polyphenols
FOR MULTI-AGE HOUSEHOLDS
✓ Optimal: Plant-C™ Kids: one bottle, ages 1–13, dropper-measured at 10 / 20 / 30 drops (0.5 / 1.0 / 1.5 mL)
○ Alternative: Age-split organic SKUs: appropriate dosing, but re-purchase by age and multi-SKU stocking
✗ Weakest fit for this priority: Fixed-dose chewables or gummies: one dose that fits neither a toddler nor a tween well
FOR PURITY VERIFICATION (HEAVY METALS)
✓ Optimal: Plant-C™ Kids: published batch Certificates of Analysis for heavy metals and glyphosate, plus amber glass
○ Alternative: Clean-label-certified brands: meaningful third-party certification, but lab results commonly kept private
✗ Weakest fit for this priority: Any children’s botanical product with no accessible testing documentation
WHEN A SUPPLEMENT MAY NOT BE NEEDED AT ALL
○ A child who reliably eats fruits and vegetables is likely meeting vitamin C needs from food, which remains the recommended first line
○ A child already taking a complete children’s multivitamin may already be covered for vitamin C; check the label before stacking
○ Any concern about a child’s nutrient status belongs with the pediatrician, not a product page
The Feature Comparison
A synthetic-isolate liquid offers a familiar format at an accessible price, and where it carries a laboratory-made ascorbic acid or sodium ascorbate isolate, added fructose, a preservative, and no organic or whole-food sourcing, it concedes four things at once. If you’re the label-literate parent who reads the panel before the front of the pack, that’s a problem, because each concession is individually visible.
Chewable vitamin C tablets are portable and shelf-stable, and they fail two of this household’s requirements: they can be rejected on taste and texture by the exact child who refuses vegetables, and they lock in a single fixed dose that fits neither a toddler nor a tween.
How Do You Read a Certificate of Analysis?
Certifications alone don’t settle it, because botanicals concentrate whatever is in their soil. A plant-derived ingredient can carry trace heavy metals or agricultural residues even when it’s grown organically. The only thing that resolves the question is measurement: batch-level testing for the specific contaminants of concern, with results you can actually read.
Look for three things. First, whether the brand publishes batch Certificates of Analysis rather than a one-time or composite report. Second, which analytes are actually tested; for a botanical children’s product, that means lead, arsenic, cadmium and mercury by ICP-MS, plus glyphosate and AMPA by LC-MS/MS. Third, whether botanical identity and active assay are confirmed per batch.
One limitation worth knowing, because most brands won’t tell you. USP ⟨2232⟩ is the standard reference for elemental contaminants in finished dietary supplements, but its Permitted Daily Exposures are derived for a 50 kg adult. Meeting an adult limit says less than it sounds like for a 10 kg toddler. So it’s worth checking a benchmark set with sensitive populations in view: California’s Proposition 65 Maximum Allowable Dose Level for lead is 0.5 µg per day (California OEHHA), which is stricter than a body-weight-scaled reading of the USP figure. Plant-C™ Kids reports against both.
Per batch, Plant-C™ Kids confirms heavy metals by ICP-MS against the current USP ⟨2232⟩ limits of 5 µg per day permitted daily exposure and 0.5 µg per gram for lead; glyphosate and AMPA by LC-MS/MS to organic tolerances; vitamin C content by HPLC assay, manufactured with a stability-validated overage so the labeled amount is retained through the printed expiry date; botanical identity for both fruit extracts; and microbial limits per USP ⟨2021⟩ Microbial Enumeration Tests, Dietary Ingredients and Dietary Supplements and ⟨2022⟩ Microbiological Procedures for Absence of Specified Microorganisms, Dietary Ingredients and Dietary Supplements.
Your Questions Before the First Drop, Answered
Will my picky eater actually take it?
It’s an organic berry flavor in a naturally sweet, alcohol-free organic vegetable-glycerin base, chosen for palatability and tolerance. Give it straight from the dropper or add it to a small amount of any drink or food. Nothing to chew, nothing to swallow. About ten seconds. For the iron-absorption benefit specifically, give the serving with an iron-rich plant meal such as lentils, beans, tofu, greens or fortified grains.*
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
How much vitamin C do I give my child?
Pediatric Recommended Dietary Allowances rise with age: 15 mg daily for ages 1–3, 25 mg for ages 4–8, and 45 mg for ages 9–13 (Institute of Medicine, 2000). These are nutritional adequacy levels, not therapeutic doses, and they sit far below age-band tolerable upper intake levels of 400, 650 and 1,200 mg. Each serving is measured on the graduated dropper: 10 drops (0.5 mL) for ages 1–3, 20 drops (1 mL) for ages 4–8, 30 drops (1.5 mL) for ages 9–13, from one 30 mg/mL concentration. The panel states each serving in drops, and the dropper’s volume markings are the more precise way to confirm it. Consult your child’s pediatrician before starting any supplement.*
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Is it safe, and how do I know it’s clean?
Every batch carries published batch Certificates of Analysis for heavy metals and glyphosate, so you can read the documents before the first drop rather than taking a label’s word for it. Every serving sits roughly 22 to 27 times below its age-band tolerable upper intake level, and each serving is measured on the marked dropper rather than taken as a countable piece, so the amount given is deliberate each time. Keep out of reach of children. Store closed and upright, away from direct sunlight. Consult your child’s pediatrician before starting any supplement, especially if your child takes medication or has a medical condition.*
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Can one bottle really cover a toddler and a tween?
Yes. The nutrient a toddler needs and the nutrient a tween needs is the same vitamin C; only the amount changes with age. Separate infant, toddler and kids SKUs are a packaging decision rather than a biological requirement, which is why multi-child households end up with two or three bottles and a re-purchase every birthday. A single-concentration liquid measured by dropper collapses the whole span into one product: 0.5 mL, 1.0 mL and 1.5 mL from one 30 mg/mL bottle. Because younger children take the smallest servings, a single 60 mL (2 oz) bottle stretches to about 120 toddler servings.*
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Is whole-food vitamin C better absorbed than synthetic?
No. A randomized, parallel-arm steady-state trial in 36 young non-smoking adult males found vitamin C from gold kiwifruit comparable to synthetic ascorbic acid across plasma, urine, mononuclear cells, neutrophils and skeletal muscle (Carr et al., 2013), and a systematic review of all steady-state comparative bioavailability studies in humans reached the same conclusion (Carr & Vissers, 2013). The legitimate whole-food differences are compositional: vitamin C arrives inside a polyphenol matrix that contributes its own antioxidant activity, and the ingredient deck stays short and organic. Superior absorption is not one of them.*
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Cover Daily Vitamin C From Two Whole Fruits
You came here wanting this handled cleanly: something that supports a healthy immune system and promotes collagen formation for bone, teeth, skin and tissue, without sugar, without a synthetic isolate, and without another negotiation at the table.*
Plant-C™ Kids is a dual whole-food vitamin C liquid for parents of produce-refusing picky eaters ages 1–13 who want daily vitamin C coverage without sugar, synthetics, or another mealtime fight.*
On value: one 60 mL (2 oz) bottle delivers about 120 toddler servings, and it replaces the two or three age-split bottles a growing family would otherwise buy. A five-line ingredient deck. Amber glass.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
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For the Parent Who Reads the Whole Label
Organic Amla (Phyllanthus emblica)
Composition and processing. Organic amla fruit extract, a water extract at a 40–50:1 ratio specified at not less than 50% vitamin C by HPLC assay, with the vitamin C native to the fruit rather than standardized with added ascorbic acid. The polyphenol families characterised for this fruit in the published literature are hydrolysable tannins including ellagitannins, plus corilagin, punigluconin, pedunculagin, gallic and ellagic acids, quercetin and kaempferol. Botanical identity is confirmed per batch. We do not claim emblicanins A and B; their existence as distinct compounds is disputed in the literature (Majeed et al., 2009).
Why it’s in the formula. For a polyphenol family entirely distinct from acerola’s anthocyanins, two chemically different classes rather than one.
What amla’s human research does and does not support. Amla has a stronger adult human trial base than acerola, but entirely for cardiometabolic and antioxidant endpoints at 500 to 1,000 mg extract doses, far above a pediatric vitamin C serving. Those trials are not used to substantiate any pediatric or immune claim on this page, and we say so rather than letting the implication sit.
Organic Acerola Cherry (Malpighia emarginata)
Composition and processing. Organic acerola fruit extract, a water extract from acerola puree or juice, standardized to 17% native, non-fortified vitamin C to our ingredient specification. The panel declares the vitamin C as coming from organic amla fruit extract and organic acerola cherry extract together, so the labeled 30 mg/mL is met from the two fruits rather than from an added isolate. Content is confirmed per batch by HPLC assay.
Polyphenols in the extract. Alongside the vitamin, acerola carries anthocyanins, hydroxycinnamic acids and flavonoids. Those are the polyphenols carried through into the standardized extract, which a synthetic isolate does not have at all.
Substantiation. The biology of the vitamin acerola delivers is well established: collagen cofactor activity (Rahimi & Launico, 2026), immune-cell function (Carr & Maggini, 2017), antioxidant activity (Linus Pauling Institute), and non-heme iron reduction (Linus Pauling Institute; Lynch & Cook, 1980). Acerola as a finished ingredient has a more limited human trial base beyond vitamin C delivery, dominated by in vitro and animal work, and is characterized conservatively here.
Safety. Acerola is a food ingredient with an extensive history of dietary consumption. We are not aware of contraindications at the serving levels used here; absence of a documented contraindication is not the same as proof of none. Consult your child’s pediatrician before starting any supplement.
The Alcohol-Free Organic Vegetable-Glycerin Base
The base is glycerin rather than alcohol, chosen for palatability and tolerance. The formula is made without an added preservative: it is formulated at [[X]]% glycerin, giving a measured finished-product water activity of [[a_w VALUE]], below the level bacterial growth requires. For reference, bacteria generally require a water activity of 0.90 or above and molds 0.70 to 0.80.
Glycerol is a polyol rather than a fermentable sugar. Purified water brings the formula to volume; an organic berry flavor completes it. The full declaration reads organic vegetable glycerin, purified water and organic berry flavor, with the flavor’s own components disclosed in parentheses as organic acacia gum, natural flavors and citric acid. No artificial colors or flavors. Amber glass limits light exposure to the oxidation-sensitive vitamin, and glass is inert, so there is no packaging-migration question to evaluate.
Certifications. USDA Organic certified. Gluten-free to the FDA standard of less than 20 ppm under 21 CFR 101.91, with batch testing on file. Vegan, soy-free and non-GMO, with signed allergen statements on file for both fruit ingredients. The non-GMO attribute is self-affirmed and is not a Non-GMO Project Verified certification.
Dosing Precision, Upper Limits, and Safety Margins
One concentration, 30 mg/mL, in three measured servings as declared on the panel: 10 drops (0.5 mL) for ages 1–3 at 15 mg, 20 drops (1 mL) for ages 4–8 at 30 mg, and 30 drops (1.5 mL) for ages 9–13 at 45 mg. At the labeled 60 mL (2 oz) fill, that is about 120, 60 and 40 servings per bottle.
Every serving sits roughly 22 to 27 times below its age-band tolerable upper intake level (Institute of Medicine, 2000): 15 mg against 400 mg, 30 mg against 650 mg, 45 mg against 1,200 mg. Each serving is measured on the marked dropper rather than taken as a countable piece, so the amount given is deliberate each time. Keep the dropper clean between children, and give each child only their own age-band serving.
Keep out of reach of children. Store closed and upright, away from direct sunlight. Shake well before use.
This product is formulated for ages 1 and over. Consult your child’s pediatrician before starting any supplement, particularly if your child takes medication, has a medical condition, or has a known allergy to any ingredient.
Extended Questions
What exactly is amla, and why are there two fruits instead of one?
Amla is the Indian gooseberry (Phyllanthus emblica), listed at 252 mg of vitamin C per 100 g in the ICMR-NIN Indian Food Composition Tables (2017), the highest of any fruit in those tables. Both fruits contribute the labeled vitamin C, which most single-source organic liquids draw from one fruit alone. Amla is also in the formula for a different polyphenol family from acerola’s anthocyanins: hydrolysable tannins including ellagitannins, plus gallic and ellagic acids. Two whole fruits, two polyphenol profiles.
How does the amber glass affect how long it lasts?
Vitamin C is oxidation-sensitive and light-sensitive, so amber glass limits light exposure, and glass is inert, so there is no packaging-migration question to evaluate. Vitamin C content is confirmed per batch by HPLC assay, and a stability-validated overage means the labeled amount is retained through the printed expiry date. Store closed, out of direct sunlight, and shake well before use.
Can I give this alongside a children’s multivitamin?
Often yes, but check both labels first and add the vitamin C amounts together. Many complete children’s multivitamins already supply vitamin C, and stacking two sources can push combined intake higher than intended. Age-band tolerable upper intake levels exist for exactly this reason, and the headroom described above is calculated for this product alone. If your child already takes a multivitamin containing adequate vitamin C, a separate vitamin C may simply not be necessary. Discuss total daily intake with your pediatrician.
Can my child take it with medication?
The medication interactions most often flagged by authoritative sources, reduced warfarin effectiveness and blunting of the HDL response to niacin plus simvastatin, involve intakes at or above roughly 1 g per day, far above the 15 to 45 mg servings here; the Linus Pauling Institute advises people taking anticoagulants to keep vitamin C below 1 g per day. Other interactions are documented without a dose threshold. Even so, absence of an interaction study is not evidence of absence. Iron is the clearest example, and it works in your favor: vitamin C helps support absorption of iron from plant foods, which is why timing it with an iron-rich plant meal is the practical guidance. For anything prescribed, consult your child’s pediatrician or pharmacist before starting this or any supplement, including whether to space doses apart.*
My child has a health condition, is under 1 year old, or has allergies. Is this appropriate?
This product is formulated for ages 1 and over, so it is not appropriate for an infant under 12 months; consult a pediatrician before giving any supplement to an infant. For a child with a diagnosed medical condition, or one taking medication, the decision belongs with their pediatrician rather than a product page. Bring the label and the dosing table to the conversation. On allergens: the formula is vegan, gluten-free, soy-free and non-GMO, and the full declaration reads organic amla fruit extract and organic acerola cherry extract, organic vegetable glycerin, purified water and organic berry flavor, with the berry flavor’s own components listed as organic acacia gum, natural flavors and citric acid. The non-GMO attribute is self-affirmed rather than third-party certified. Read the full label if your child has a known fruit or botanical sensitivity.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
You Now Know What to Look For, Whether or Not You Choose Plant-C™ Kids
You now understand why daily vitamin C matters for a produce-refusing picky eater, what whole-food sourcing legitimately does and doesn’t do, how age-band dosing works from a single concentration, and how to read a batch Certificate of Analysis. That knowledge is useful on any shelf, including the one that doesn’t have us on it.
The evidence for vitamin C’s roles is among the most settled in nutrition science. The purity documentation is published rather than promised. And the bottle is designed for the only outcome that matters day to day: a child who takes it without a fight.
Learn More About Plant-C™ Kids →
When Plant-C™ Kids Is, and Isn’t, the Right Choice
Parents choose Plant-C™ Kids specifically when:
✓ A child ages 1–13 consistently refuses fruits and vegetables and the parent wants to cover daily vitamin C intake
✓ Added sugar is a disqualifier; a gummy or fructose-sweetened liquid isn’t acceptable in the household
✓ The parent specifically wants whole-food sourcing rather than a synthetic isolate
✓ Purity is the deciding concern and the parent wants to read published batch Certificates of Analysis before the first serving
✓ Two or more children span the 1–13 range and one bottle replaces two or three age-split SKUs
✓ The household is plant-based and wants vitamin C paired with iron-rich plant meals
Conversely, Plant-C™ Kids may not be necessary when:
○ The child reliably eats fruits and vegetables; food remains the recommended first line
○ The child already takes a complete children’s multivitamin that supplies adequate vitamin C
○ Budget is the deciding factor and a basic vitamin C source is acceptable
○ A parent is seeking high-dose vitamin C for illness; this is a nutritional adequacy product at RDA level, not a high-dose format, and that conversation belongs with a pediatrician
Any question about a child’s nutrient status, medications, or existing conditions should go to their pediatrician before starting any supplement.*
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Scientific References & Citations
Alphabetized by first author surname. Every source was independently verified against PubMed, PubMed Central, Crossref, or the publishing organization’s own site as of September 2026. No cited source was retracted or carrying a correction or expression of concern at that date.
Alkandari, D., Sarfraz, H., & Sidhu, J. S. (2019). Development of a functional food (pan bread) using amla fruit powder. Journal of Food Science and Technology, 56(4), 2287–2295. https://pmc.ncbi.nlm.nih.gov/articles/PMC6443718/
Relevance: Source for the published range of amla vitamin C content across varieties, 206.8 to 932.1 mg per 100 g. Cited to show the spread across cultivars and analytical methods, against which India’s national reference value of 252 ± 30.4 mg per 100 g is used on this page.
California Office of Environmental Health Hazard Assessment. (n.d.). Proposition 65 No Significant Risk Levels (NSRLs) and Maximum Allowable Dose Levels (MADLs). California EPA. https://oehha.ca.gov/proposition-65/general-info/current-proposition-65-no-significant-risk-levels-nsrls-maximum
Relevance: Source for the pediatric-relevant lead benchmark cited alongside USP ⟨2232⟩: the Proposition 65 Maximum Allowable Dose Level for lead is 0.5 µg per day.
Carr, A. C., Bozonet, S. M., Pullar, J. M., Simcock, J. W., & Vissers, M. C. M. (2013). A randomized steady-state bioavailability study of synthetic versus natural (kiwifruit-derived) vitamin C. Nutrients, 5(9), 3684–3695. https://doi.org/10.3390/nu5093684
Relevance: The parity guardrail. Randomized parallel-arm trial, 36 young non-smoking adult males (18 per group), 50 mg/day for six weeks, comparing a chewable vitamin C tablet with half a gold kiwifruit daily. No significant between-group difference in plasma, 24-hour urine, mononuclear cells, neutrophils, semen or skeletal muscle ascorbate. Limitations: kiwifruit-specific; acerola and amla were not tested. Disclosure: part-funded by Zespri International Ltd.
Carr, A. C., & Maggini, S. (2017). Vitamin C and immune function. Nutrients, 9(11), 1211. https://doi.org/10.3390/nu9111211
Relevance: Substantiates “supports a healthy immune system” as maintenance of normal immune function through daily adequacy. Vitamin C accumulates in phagocytic cells including neutrophils at 50 to 100 times plasma concentrations and supports chemotaxis, phagocytosis, microbial killing, clearance of spent neutrophils, and epithelial barrier function. Limitations: a narrative review, not primary human evidence; pediatric content is case-level. Disclosure: co-author S. Maggini was employed by Bayer Consumer Care Ltd., a multivitamin manufacturer; A. C. Carr received Bayer funding as a Key Opinion Leader.
Carr, A. C., & Vissers, M. C. M. (2013). Synthetic or food-derived vitamin C: are they equally bioavailable? Nutrients, 5(11), 4284–4304. https://doi.org/10.3390/nu5114284
Relevance: Strengthens the parity position. Systematic review concluding that all steady-state comparative bioavailability studies in humans show no difference between synthetic and food-derived vitamin C, across populations and designs.
Cook, J. D., & Reddy, M. B. (2001). Effect of ascorbic acid intake on nonheme-iron absorption from a complete diet. The American Journal of Clinical Nutrition, 73(1), 93–98. https://doi.org/10.1093/ajcn/73.1.93
Relevance: Establishes that the ascorbate enhancement of non-heme iron absorption measured with single test meals is substantially smaller when assessed across a complete diet. Cited so the iron claim is stated without overstatement.
Ghosal, S., Tripathi, V. K., & Chauhan, S. (1996). Active constituents of Emblica officinalis: Part 1. The chemistry and antioxidative effects of two new hydrolysable tannins, emblicanin A and B. Indian Journal of Chemistry, Section B, 35B(9), 941–948. Print only; no DOI; not indexed in PubMed or Crossref.
Relevance: Historical position, included for transparency. Reported that Emblica fruits contain no free or conjugated ascorbic acid. Limitations: not PubMed-indexed, no DOI; the central analytical finding has since been tested and rejected by Scartezzini et al. (2006), Raghu et al. (2007) and Majeed et al. (2009). Cited as a superseded position, not as current evidence.
Hamner, H. C., Dooyema, C. A., Blanck, H. M., Flores-Ayala, R., Jones, J. R., Ghandour, R. M., & Petersen, R. (2023). Fruit, vegetable, and sugar-sweetened beverage intake among young children, by state: United States, 2021. MMWR. Morbidity and Mortality Weekly Report, 72(7), 165–170. https://doi.org/10.15585/mmwr.mm7207a1
Relevance: Primary dietary-pattern context. CDC analysis of the 2021 National Survey of Children’s Health (n = 18,386, nationally representative, children aged 1–5, parent-reported). During the preceding week, 49.1% did not eat a vegetable daily and 32.1% did not eat a fruit daily; in 20 states more than half did not eat a vegetable daily (range: Vermont 30.4% to Louisiana 64.3%). Cited as population dietary context, never as a claim about any individual child.
Indian Council of Medical Research, National Institute of Nutrition. (2017). Indian food composition tables. ICMR-NIN. https://www.nin.res.in/ebooks/IFCT2017.pdf
Relevance: Source for amla’s vitamin C content. Table 2, food code E021, Gooseberry (Emblica officinalis): 252 ± 30.4 mg total ascorbic acid per 100 g edible portion, the highest vitamin C value among fruits in the tables, ahead of pink guava at 222 mg. Note: the frequently quoted 600 mg figure appears in this publication only within its historical preface, describing the 1951 fourth edition of Health Bulletin No. 23, and should not be attributed to the 2017 tables.
Institute of Medicine, Food and Nutrition Board. (2000). Dietary reference intakes for vitamin C, vitamin E, selenium, and carotenoids. National Academy Press. https://www.ncbi.nlm.nih.gov/books/NBK225480/
Relevance: Source for age-band pediatric RDAs (15 mg ages 1–3; 25 mg ages 4–8; 45 mg ages 9–13, both sexes) and tolerable upper intake levels (400 / 650 / 1,200 mg) underlying the stated 22 to 27 times safety margin.
Linus Pauling Institute, Oregon State University. (n.d.). Vitamin C. Micronutrient Information Center. https://lpi.oregonstate.edu/mic/vitamins/vitamin-C
Relevance: Substantiates “provides antioxidant support.” Vitamin C is the primary water-soluble, non-enzymatic antioxidant in plasma and tissues and participates in redox recycling of other antioxidants, including regenerating vitamin E from its oxidized form. Also the source for the anticoagulant guidance to keep vitamin C below 1 g per day.
Linus Pauling Institute, Oregon State University. (n.d.). Iron. Micronutrient Information Center. https://lpi.oregonstate.edu/mic/minerals/iron
Relevance: Substantiates the mechanism behind “helps support absorption of iron from plant foods.” Vitamin C enhances non-heme iron absorption by reducing dietary ferric iron (Fe³⁺) to ferrous iron (Fe²⁺) and forming an absorbable iron–ascorbic acid complex; phytic acid and polyphenolic compounds inhibit non-heme iron absorption, an effect vitamin C can reduce.
Lynch, S. R., & Cook, J. D. (1980). Interaction of vitamin C and iron. Annals of the New York Academy of Sciences, 355(1), 32–44. https://doi.org/10.1111/j.1749-6632.1980.tb21325.x
Relevance: Source for the solubility mechanism. Ascorbic acid forms a chelate with ferric iron at acid pH that remains soluble at the alkaline pH of the duodenum. Cited for mechanism only, not for any clinical outcome.
Majeed, M., Bhat, B., Jadhav, A. N., Srivastava, J. S., & Nagabhushanam, K. (2009). Ascorbic acid and tannins from Emblica officinalis Gaertn. fruits: a revisit. Journal of Agricultural and Food Chemistry, 57(1), 220–225. https://doi.org/10.1021/jf802900b
Relevance: Cited only as the dissenting position on amla’s composition. Found no evidence for the presence of emblicanins A and B, re-identifying the compounds in question, and argued that reported high ascorbic acid values are questionable because of previously unidentified co-eluting mucic acid gallates. Disclosure: authors affiliated with Sami Labs Ltd., which commercializes an amla extract. Note: this paper does not support a high amla vitamin C value and is not cited for one.
National Institutes of Health, Office of Dietary Supplements. (n.d.). Vitamin C: Fact sheet for health professionals. U.S. Department of Health and Human Services. https://ods.od.nih.gov/factsheets/VitaminC-HealthProfessional/
Relevance: Source for the absorption and excretion statement. Approximately 70 to 90% of vitamin C is absorbed at intakes of 30 to 180 mg/day; above 1 g/day absorption falls below 50% and unmetabolized ascorbic acid is excreted in urine.
Nyakundi, P. N., Nemeth, L. G., Galgalo, D. A., Limungi, G. M., Nyabuti, F. M., Otieno, K., Czina, L., & Lohner, S. (2026). Does consuming ascorbate-rich fruits and fruit juices with meals improve iron bioavailability? A systematic review and meta-analysis of interventions. The American Journal of Clinical Nutrition, 124(3), 101418. https://doi.org/10.1016/j.ajcnut.2026.101418
Relevance: Primary substantiation for “helps support absorption of iron from plant foods.” Fifteen randomized and controlled trials, 1,381 participants (females aged 15–74 and children). Moderate-certainty evidence that ascorbate-rich fruits or juices with meals probably increase serum ferritin (MD +9.39 µg/L) and hemoglobin (MD +1.34 g/L); high-certainty evidence of a slight reduction in serum transferrin receptor (MD −0.37 mg/L); low certainty for iron absorption (MD +3.36%, p = 0.07); high-certainty evidence of little to no effect on total body iron stores (MD −0.29 mg/kg, p = 0.32). PROSPERO: CRD42024615527.
Olszowy-Tomczyk, M. (2020). Synergistic, antagonistic and additive antioxidant effects in the binary mixtures. Phytochemistry Reviews, 19(1), 63–103. https://doi.org/10.1007/s11101-019-09658-4
Relevance: Substantiates the statement that antioxidant interactions between plant-derived components can be additive, synergistic or antagonistic depending on the pair and the assay used.
Prakash, A., & Baskaran, R. (2018). Acerola, an untapped functional superfruit: a review on latest frontiers. Journal of Food Science and Technology, 55(9), 3373–3384. https://doi.org/10.1007/s13197-018-3309-5 (free full text: https://pmc.ncbi.nlm.nih.gov/articles/PMC6098779/)
Relevance: Peer-reviewed review of acerola composition, reproducing a compositional-table value of 1,677.6 mg vitamin C per 100 g (Table 1). Note: the review gives two different ranges, 1,000 to 4,500 mg per 100 g in its text and 1,500 to 4,500 mg per 100 g in its abstract; this page states the more conservative lower bound.
Raghu, V., Platel, K., & Srinivasan, K. (2007). Comparison of ascorbic acid content of Emblica officinalis fruits determined by different analytical methods. Journal of Food Composition and Analysis, 20(6), 529–533. https://doi.org/10.1016/j.jfca.2007.02.006
Relevance: Compared four analytical methods for ascorbic acid in amla fruit. The conventional 2,4-DNPH method returned 389 to 560 mg per 100 g while three more specific methods returned 110 to 287 mg per 100 g, indicating the conventional assay overestimates by roughly two- to four-fold. Note: not PubMed-indexed; no PMID exists. Cited for the presence of ascorbic acid and for method dependence, not for any single quantitative value.
Rahimi, N., & Launico, M. V. (2026). Biochemistry, collagen synthesis. In StatPearls [Internet]. StatPearls Publishing. https://www.ncbi.nlm.nih.gov/books/NBK507709/ (last updated June 18, 2026)
Relevance: Substantiates “promotes collagen formation for bone, teeth, skin and tissue.” Proline and lysine residues undergo hydroxylation via prolyl and lysyl hydroxylase, a process requiring vitamin C as a cofactor; inadequate vitamin C impairs hydroxylation and produces unstable collagen with reduced tensile strength.
Scartezzini, P., Antognoni, F., Raggi, M. A., Poli, F., & Sabbioni, C. (2006). Vitamin C content and antioxidant activity of the fruit and of the Ayurvedic preparation of Emblica officinalis Gaertn. Journal of Ethnopharmacology, 104(1–2), 113–118. https://doi.org/10.1016/j.jep.2005.08.065
Relevance: Substantiates that amla fruit contains measurable ascorbic acid: 0.4% w/w in raw fruit, rising to 1.28% after traditional Ayurvedic processing, with vitamin C accounting for roughly 45 to 70% of measured antioxidant activity. Note: this paper does not address tannin-mediated protection of ascorbate from oxidation and is not cited for that claim.
Triquetra Health. (n.d.). Plant-C™ Kids batch Certificates of Analysis. [[COA LIBRARY URL]]
Relevance: Batch-level purity and potency verification underlying every reference on this page to published batch Certificates of Analysis. Heavy metals (lead, arsenic, cadmium, mercury) by ICP-MS; glyphosate and AMPA by LC-MS/MS; vitamin C by HPLC assay; botanical identity for both fruit extracts; microbial limits per USP ⟨2021⟩ and ⟨2022⟩.
U.S. Department of Agriculture, Agricultural Research Service. (n.d.). FoodData Central: Acerola, (west indian cherry), raw (FDC ID 171686). https://fdc.nal.usda.gov/food-details/171686/nutrients
Relevance: Primary source for acerola’s vitamin C content: 1,677.6 mg per 100 g. Compare oranges, raw, all commercial varieties (FDC ID 169097): 53.2 mg per 100 g, a ratio of approximately 31.5 times.
U.S. Department of Agriculture. (n.d.). National Organic Program. Agricultural Marketing Service. https://www.ams.usda.gov/about-ams/programs-offices/national-organic-program
Relevance: Certification basis for the organic status of both fruit sources and the vegetable-glycerin base.
U.S. Food and Drug Administration. (n.d.). 21 CFR 101.9, Nutrition labeling of food (Reference Daily Intakes). https://www.ecfr.gov/current/title-21/part-101/section-101.9
Relevance: Source for the distinction drawn between the FDA Daily Value (90 mg for adults and children 4 and older, per 21 CFR 101.9(c)(8)(iv)) and the age-band RDA used to describe adequacy.
U.S. Food and Drug Administration. (n.d.). 21 CFR 101.91, Gluten-free labeling of food. https://www.ecfr.gov/current/title-21/part-101/section-101.91
Relevance: Regulatory basis for the gluten-free claim, which requires the finished product to contain less than 20 ppm gluten.
United States Pharmacopeia. (n.d.). General chapter ⟨2232⟩ Elemental contaminants in dietary supplements; general chapter ⟨2021⟩ Microbial enumeration tests: dietary ingredients and dietary supplements; general chapter ⟨2022⟩ Microbiological procedures for absence of specified microorganisms: dietary ingredients and dietary supplements. https://doi.usp.org/USPNF/USPNF_M99965_02_01.html
Relevance: Reference standards underlying the heavy-metal and microbial limits reported on each batch Certificate of Analysis. ⟨2232⟩ applies to finished dietary supplement dosage forms; its lead limits are a 5 µg per day permitted daily exposure and 0.5 µg per gram component limit, derived for a 50 kg adult.
Research quality standards: This page’s iron-absorption claim rests on a peer-reviewed systematic review and meta-analysis of randomized and controlled trials; its bioavailability-parity statement rests on a randomized controlled trial and a systematic review of comparative bioavailability studies; its collagen claim rests on established enzymology; and its immune claim rests on nutrient adequacy described in a mechanistic review. Where evidence is mechanistic, adult-only, or absent, that limitation is stated in the body rather than omitted. No randomized controlled trial supports the immune, collagen or antioxidant claims on this page, and none is claimed.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Consult your child’s pediatrician before starting any supplement, especially if your child takes medication or has a medical condition. This product is formulated for ages 1 and over.