Just wanted to let you know that my food intolerances improved greatly after taking a probiotic which contains L. acidophilus, Lactococcus lactis, B. bifidum B lactis, Lactobacillus paracasei. I had huge intolerances and problems with other probiotics and I know that other people had adverse reactions to probiotics as well. There are some reasons why probiotics may cause adverse reactions: 1) The probiotic contains the wrong kind of bacteria (this is different from person to person of course) 2) The probiotic contains only dead bacteria and thereby causes an adverse immune response I once had an probiotic which worked very well but stopped working after 2-3 months in the summer. My thought was that I got allergic to it. This thought was wrong. I still have the 1,5 year old package which expires in december and I also have a brand new package which I keep in the fridge. While the old one has no effect at all, I often even think that my food intolerances get worse on it, the new one has a great effect. I ate all the foods which always cause problems, I still feel that they are far from optimal for me but the adverse reactions are missing to 90%. Digestion improved, skin improved, mood improved etc. And this after the 3rd day :Retro smile: I wonder if this gets even better after some weeks or months but it's definitely nice. As a conclusion I think it's very important to take "fresh", high quality probiotics which contain high amounts of the right, living bacteria (sachet form seems to work best for me). The next time when someone has adverse reactions to probiotics I would look at the sort of bacteria and if they are still alive.