I just saw an ad for a probiotic in Natural News that Consumer reports says is the absolute best. "Key Biotics", by Whole Body Research. Was it's name. They claim it retains all of the live bacteria you need while others lose it's potency way before you ever get home. Just thought i'd share this. I haven't tried it but if I can find it, I will. I'm sure you can order online on their website. This is not a promotion. Look it up your self.