L-Glutamine is the most abundant amino acid in the body.</br></br>Product Description</br></br>one of the non-essential amino acids?? glutamine is a major fuel for enterocytes?? and supports tissues that turn over rapidly?? such as intestinal cells (intestinal epithelium) and components of the immune system.</br><br/>http://www.amazon.com/gp/product/B0032AEDC6