A bit more than a hypothesis. There are numerous scientific studies on nih.gov about this topic. I don't have their links handy, but I have run across them wh

A bit more than a hypothesis. There are numerous scientific studies on nih.gov about this topic. I don't have their links handy, but I have run across them when researching gut health. I find it is easiest to search their site using google. e.g. "site:nih.gov some topic" in google works best with them.