GI Repair Nutrients supports the growth and health of the gastrointestinal lining. These constituents augment the strength of the intestinal mucosal lining. It is recommended to combine this product with Acidophilus/Bifidobacter/FOS for extra support. If necessary, combine with higher doses of Glutamine (Glutamine Powder or Glutamine 850 mg). Independently tested for authenticity, potency, heavy metals, solvent residue, herbicide and pesticide residue, aflatoxins, stability and bacteria, yeast and mold counts.