Phase Fiber™ Prebiotic Fiber Powder for Gut & Digestive Support
Complete gut coverage. Without the bloat.
- Three clinically studied prebiotics — Fibalance™ PHGG, Solnul® RS2, and PreticX™ XOS, each at the dose used in published clinical research*
- Triple-Phase Fermentation — Fast (0–12 hr), Steady (12–24 hr), Slow (24–48 hr) — so fermentation is distributed across 48 hours instead of dumped in one spike*
- Low-FODMAP certified ingredients — flavorless, grit-free, designed for sensitive digestion*
10 oz · About 30 servings
Supplement Facts
- Fibalance Partially Hydrolyzed Guar Gum (PHGG)
- Solnul® RS2 Resistant Potato Starch
- PreticX™ Xylooligosaccharides (XOS)
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Phase Fiber™ Prebiotic Fiber Powder for Gut & Digestive Support
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Third-Party Tested
Thoughtfully Formulated
Clinically Studied Ingredients
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Phase Fiber™ delivers complete prebiotic gut support with a clinically designed Triple-Phase Fermentation approach that works throughout the digestive tract.* Featuring Fibalance™ PHGG, Solnul® Resistant Starch, and PreticX™ XOS, this formula helps support digestion, regularity, microbiome health, and daily comfort without the grit or heaviness of many traditional fiber powders.* The flavorless powder dissolves easily into water, coffee, smoothies, and more for convenient daily use.
Triple-Phase Prebiotic Support for Complete Gut & Digestive Health*
- Supports Healthy Digestion & Regularity*
- Helps Nourish the Entire Gut Microbiome*
- Low FODMAP Certified Ingredients
- Triple-Phase Fermentation: Fast, Steady & Slow
- Supports Comfort Without Excess Bloating*
- Flavorless & Easily Mixes into Drinks
- Fibalance Partially Hydrolyzed Guar Gum (PHGG)
- Solnul® RS2 Resistant Potato Starch
- PreticX™ Xylooligosaccharides (XOS)
Mix one scoop daily into 8–12 oz of water, coffee, smoothies, or your favorite beverage. Phase Fiber™ dissolves without changing the taste or texture. If you're new to fiber supplements, start with half a scoop for the first few days, then increase to a full serving.*
Pairs with
-
Increase in beneficial bacteria
Bifidobacterium is a keystone for digestive comfort (Bush et al., 2023) -
Less fiber needed per dose
5 g of Fibalance™ PHGG outperforms 30 g of wheat bran (Parisi et al., 2002) -
Recorded Akkermansia elevation from a prebiotic supplement
Solnul® RS2 raises the keystone bacterium linked to metabolism and gut barrier health (Bush et al., 2023)
*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.
The Full Spectrum of Gut Health In Every Scoop*
Most fiber supplements feed bacteria in one place – and stop. Phase Fiber™ supports the complete gut ecosystem.
Prebiotics
Three premium prebiotic fibers that feed your gut ecosystem across 48 hours.*
Probiotics
Five keystone bacterial families cultivated across every region of your gut.*
Short Chain Fatty Acids
Produce the metabolic fuel your gut lining, immune system and metabolism rely on.*
*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 Most Fiber Creates Gas Spikes
Most fiber supplements aren't bad — they're just poorly designed. Single-ingredient fibers ferment all at once within a few hours, hitting your gut with a surge of gas it can't disperse. The problem isn't fiber. It's concentrated fermentation.
Triple-Phase Fermentation solves this by design. PreticX™ XOS ferments Fast (0–12 hr, upper gut). Fibalance™ PHGG ferments Steady (12–24 hr, mid gut). Solnul® RS2 ferments Slow (24–48 hr, deep gut). Fermentation distributed across 48 hours means fewer gas spikes — just steady, complete gut nourishment your body can actually handle.*
*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.
One ingredient or a complete system?
The architecture of your fiber supplement determines everything — coverage, comfort, and results.
When Your Gut Works, Everything Works
Four ways Phase Fiber™ supports the complete gut ecosystem.
Increases Beneficial Bacteria
In a published human clinical trial, Phase Fiber’s prebiotics increased Bifidobacterium by 317% — and produced the highest Akkermansia elevation ever recorded from a prebiotic supplement. From fiber alone.*
Comfortable Digestion + Regularity
Distributed fermentation supports daily regularity without the surge of gas and bloating common with single-fiber supplements.*
Microbiome Diversity
Most fibers feed one bacterial family and stop. Phase Fiber feeds five keystone families across three gut regions — the kind of diversity a single-ingredient fiber simply cannot deliver.*
A Nourished Gut Lining
Your gut's protective lining is your body's first line of defense. Phase Fiber reaches the deepest regions where this nourishment matters most — where other fibers never get.*
Metabolic Support
Your metabolism takes its cues from your gut. When Akkermansia and keystone bacteria thrive, your gut sends the right metabolic signals to the rest of your body. Phase Fiber’s Solnul RS2 produced the highest Akkermansia increase ever recorded in a human clinical trial — at this exact dose in every scoop.*
*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.
Three Branded Prebiotics, Three Phases of Support
Each ingredient was chosen for where and when it ferments — together they cover all 48 hours.
Timeline based on published clinical research. Individual results may vary.
*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.
Standards Without Compromise
This formula is crafted with thoughtfully selected ingredients and manufactured to rigorous quality standards.
Vegan
Soy
Free
Gluten
Free
Thoughtfully formulated. Independently tested.
We prioritize transparent sourcing, thoughtful formulation, and third-party testing standards to help ensure quality, purity, and consistency across our products.
Third-Party Tested
Products are independently tested to verify quality, purity, potency, and ingredient standards.
Thoughtfully Sourced Ingredients
We partner with trusted suppliers to select premium ingredients backed by research and rigorous quality standards.
Intentional Formulations
Every formula is designed for ingredient compatibility, bioavailability, and effective dosing.
GMP-Certified Manufacturing
Manufactured in GMP-certified facilities that follow established quality control standards.
Third-Party Tested
GMP-Certified Facility
Transparent Sourcing
Practitioner-Informed
Quality-Focused
Frequently asked questions
Many fiber supplements ferment too quickly in one area of the gut, creating excess gas and discomfort. Phase Fiber™ was designed differently with Triple-Phase Fermentation — three prebiotic fibers that work Fast, Steady, and Slow throughout the digestive tract. That distribution helps support comfortable digestion and complete gut coverage without the surge of bloating common with traditional fibers.*
It's the clinically designed system behind Phase Fiber™. Instead of a single fiber source, Phase Fiber combines three premium branded prebiotics that ferment at different times across the digestive tract: Fast (0–12 hr, upper gut), Steady (12–24 hr, mid gut), and Slow (24–48 hr, deep gut). The result is more complete microbiome support with steadier digestive comfort.*
Most traditional fibers use a single ingredient that ferments rapidly in one area of the gut. Phase Fiber™ uses three clinically studied prebiotics — Fibalance™ PHGG, PreticX™ XOS, and Solnul® RS2 — for more complete microbiome coverage. It's also made with Low-FODMAP certified ingredients and dissolves easily without grit or heaviness.*
Yes. Phase Fiber™ was formulated with sensitive digestion in mind. Two of three ingredients are Low-FODMAP certified, and Triple-Phase Fermentation helps avoid the rapid fermentation that causes discomfort with many fiber products. The flavorless powder is gentle, easy to mix, and designed for comfortable daily use.*
Add one scoop to 8–12 oz of liquid, then stir or shake. For best results, sprinkle the powder over the liquid (not the reverse), use a shaker bottle or whisk, and avoid hot water — room-temp or cold liquids dissolve the smoothest. Phase Fiber also blends beautifully into smoothies, yogurt, oatmeal, or cold-brew coffee.*
Mix one scoop daily into 8–12 oz of water, coffee, smoothies, or your favorite beverage. Phase Fiber™ dissolves without changing the taste or texture. If you're new to fiber supplements, start with half a scoop for the first few days, then increase to a full serving.*
Yes — prebiotics and probiotics work together. Probiotics introduce beneficial bacteria; prebiotics nourish and support them. Phase Fiber™ pairs especially well with Flora Biome™ as part of a complete gut routine.*
Build Your Complete Routine
Warning: If you have a medical condition or are taking medication, contact a physician before taking this supplement. Keep out of reach of children. *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.
To report a serious adverse event, please contact 844-272-6337.
