according to this web site, Florastor has 5 billion. http://nexabiotic.com/compare-probiotics/ Florastor was the product that I was given while in the hospital with Ulcerative Colitis with C. Diff infection. I just continued to use it at my GI doctor's suggestion. I recently change to Cultarelle. Just take one capsule per day. Haven't noticed any change.
Millions or billions do not even apply to this product. It's off the charts for a healthy digestive tract when compared to what i think of as junk that you buy at your local pharmacy. Don't waste your money on those...Florastor really works. Recommended dosage is only recommended...my GI said one a day will do the job and it has for 5 years now after being sick for 18 months, 2 hospital stays and tons of antibiotics to get rid of my diverticulitis and c-diff.
Florastor has approximately 5 billion Colony Forming Units per capsule. However, Florastor has a larger cell size for increased coverage and intestinal protection, withstands the harsh environment of the stomach to reach the intestines, promotes beneficial microflora, and even continues to work with antibiotic use!