I suffer from IBS and have tried many different brands of probiotics over the years and never found the right one until now. I was suffering from extreme abdominal pain and bloating while taking proboitics but I suffer no more. I started off taking two capsules of the Sisu brand and noticed immediately that my abdominal pain was gone and the bloating was gone as well. Now depending on what I eat, I may get a little bloated but not like before where I looked like I was nine months pregnant. One thing for sure, no more abdominal pain. This particular brand has changed my life and I was so happy to share this product with my doctor as he was prepared in prescribing medication. This probiotic brand must stay refrigeratored and costs around $30 for sixty capsules and well worth every cent. I picked this one up at the Superstore.