My dog suffers from many food allergies. Although I have her on a diet that takes this into account, she has periodic episodes of GI distress. I have found that adding this to her food daily prevents GI problems by keeping the intestinal mucosa healthy. I also add some pure glutamine to her food as well. This product has n-acetylglucose amine but not glutamine to feed the cells. The other ingredients, lactobacillus and some digestive enzymes are also very beneficial.