I have had an incredibly sensitive stomach for over 20 years. I cleaned up my diet almost 3 years ago, but improvement has taken a long time and there were still many things that would upset it. Triquetra L-Methylfolate (15 mg) plus Methyl B-12 was the very first supplement I bought after a friend recommended it as a Gary Brecka favorite. I had no reactions from this supplement, and I systematically built my supplement stack over the next 2 months. Triquetra makes very high quality supplements and have a very good rating on the SuppCo App.