My GI likes them- one of the last times we had an office visit, we had a long chat about
the various types. I told him I had been on Cultureklle for ages, & then he starts going on about
how the bifido bacteria is really good, & pulling out articles to show me & stuff. He advised me to try a high bifido one, which I have added into my mix. He's never offered to write a scrip for VSL, but then again, I haven't asked! But overall, he's in favor of them.