You can buy most of this at Kroger's, I listed the pictures below. The idea is that you are targeting the gut, the microbiome to be exact. I am not going to list out all the studies but they have discovered that the right bacteria in the gut can change a lot of things including metabolic, neurological, immune responses, weight gain and many other things. Increasing the good bacteria such as bifidobacteria etc. can also suppress the bad bacteria which have been linked to numerous problems. There are products that you can buy on Amazon and these will also support the microbiome by giving the nutrients they need. Kroger's has the ones in the pictures below, you will find the Cleveland Kraut in the refrigerated section and so is the Kefir. Both of these are live foods meaning they contain the good bacteria. Sauerkraut as canned does not work since there are no live organisms. You will have to experiment with the doses; I do a couple of tablespoons of the kraut and ju...