Theman and Able,
Renew life probiotics also has the ability to pass through stomach with out being destroyed. It is called delayed release capsules. This way the stomach acid does not destroy the probiotic before it gets to the digestive system. Renew life brand has more strands of beneficial bacteria than threelac and you can get a count up to 200 billion, which is a lot stronger than threelac. I wish I could link this information to you but it is from a tv recording and some from a book and I dont believe I am allowed to do that with out the authors permission. If you watch Brenda Watson The Road to Perfect Health form PBS she mentions this. I might ask if she has something that I can link to this website to for other people to read. Right now I am not sure if I will be switching from Renew Life even though it does not have one of the strained that would be best because at least I know for sure it is reaching the digestive tract.