An often overlooked aspect of digest, saliva is actually kind of magical stuff. It contains enzymes for breaking our food down, immune molecules for helping make our food safer and can even help promote healthy bacteria in the gut while joining the effort to keep the bad guys at bay.
Here is a simple practice for producing more saliva. Before looking for what to take or buy to support the health of your gut microbiome, why not cultivate more of your own supply of saliva which can do the trick nicely?