My son and I have always had digestive issues. Mine can be controlled with food elimination. I was hoping that the BIO X4 would be my key to eating whatever I wanted. I'm not sure it happened to the extent I was hoping for, but I did see some improvement in my symptoms when I did eat bread-type products while consistently taking BIO X4. Recently, while on a trip, and not taking the BIO X4, and continuing to be lax with my diet, I noticed many more, and more severe side effects of eating the bread-type products. I am too scared to try dairy products while taking the BIO X4 (my symptoms are just too severe), so I cannot review on that. Another thing I have noticed is that my bathroom habits have become more regular. This is a huge issue for my son, and he has shown improvement while taking the BIO X4, as well.
Bottom Line: Yes, I would recommend this to a friend