Probiotic doses - comparing CFU measurements
I have a probiotic that says it has 8 billion CFU (colony forming units) per capsule.
I'm reading a paper on this same probiotic that discusses a study where the participants took 11.8 log CFU per day.
How do I compare these two dosages? How many CFU is 11.8 log?
(1)1 Comments
Sorted by latest first Latest Oldest Best
www.ncbi.nlm.nih.gov/pmc/articles/PMC1198254/
The study group members (8 males and 4 females) took three probiotic containing capsules (8.4 log CFU per capsule) two times daily (the daily dose 9.2 log CFU) during three weeks.
So, the study protocol says the active group took 6 capsules a day.
The question says that the retail version of this capsule says it contains 8 billion CFU per capsule. So, without knowing the weight of the bacteria in the capsule, it's not possible to do a direct comparison as bacteria are normally counted as the ability to form colonies per g, or per ml of the bacterium. And then because these figures are very high, they are changed to a log base 10.
Terms of Use Privacy policy Contact About Cancellation policy © freshhoot.com2026 All Rights reserved.