I have been dealing with gastrointestinal issues for 9 years, and I found out about Core Correct recently during one of the worst flare ups I have ever had. I am a clinically trained massage therapist, so I prefer to do my own research, and when I read the studies in medical journals about their ingredient l-analyl-l-glutamine, I decided it really does seem like a unique, effective product, and it seemed like it would be worth trying. I have tried SO many things over the years including medical grade probiotics, FODMAP diet, candida diet, parasite cleanse, etc etc. I was pretty much resigned to managing my symptoms with diet (no gluten, dairy, processed food, etc). So I was very happy and surprised at how quickly and obviously Core Correct worked for me. The week before I started taking it, I had bloating, diarrhea, and acid reflux every day. After two (2!!) days of taking Core Correct in the mornings, I had one normal bowel movement per day. After about a week, I noticed a difference with a happier, calmer baseline emotionally. I am so grateful for the improvement to my day to day life that I am experiencing from using Core Correct. I have been recommending this to all of my friends and family who share with me about their GI issues and associated stress and anxiety. I highly recommend giving it a try.