I happen to make my Kefir with soy milk. I know a woman who makes hers with almond milk, so it can be made IBS safe. Jordy, you have to get the grains from someone who is willing to share with you. The commercial brands are not IBS safe because they are usually made with goat milk. As with anything, what works for one may not work for another. I only wanted to share my experience since I have been constipated for soooo long, and this is actually working for me.