Should a person take a probiotic each day indefinitely as a supplement or for only a limited time?
According to Dr. Sarah Myhill, a UK doctor for whom I have a lot of respect, probiotics need to be taken for the long term. The gut flora is very difficult to change and any improvements gained while taking probiotics will gradually go away when they are discontinued.
You can find out more by checking out these articles on Health Central's site:
Probiotics: Just another health trend?
Hope you are well!