Berberine
supplementA plant compound sold as a supplement for blood sugar and weight. It is not a GLP-1 drug.
Bloating, digestion, regularity and microbiome support, including fiber, probiotics and related testing.
7 compounds: 6 over the counter, 1 research only.
Updated October 7, 2026

compounds for digestive & gut health, each with its US status
licensed providers list at least one of them
sold over the counter, no prescription needed




A plant compound sold as a supplement for blood sugar and weight. It is not a GLP-1 drug.
A lab-made peptide popular for injury recovery. Mostly animal data, and not an approved drug.
Live microbes in supplements and foods. Benefits depend heavily on the specific strain.
An amino acid that fuels gut-lining cells; taken for "leaky gut" and recovery.
A soluble fiber for regularity that also modestly lowers LDL cholesterol.
A well-absorbed form of magnesium, sold as a supplement and as an over-the-counter laxative.
Fibers such as inulin, FOS and GOS that feed beneficial gut bacteria. Not the same as probiotics.