Our gut flora is determined by what we eat, for good or for ill. When we eat meat (including seafood), dairy, or eggs, our gut flora can take certain components in them (carnitine and choline) and produce something that ends up as a toxic compound called TMAO, which may set us up for a heart attack, stroke, and death. The process is illustrated below and at 0:26 in my video How to Cultivate a Healthy Gut Microbiome with Food. Give people two eggs, and they get a spike of TMAO in their bloodstream within hours of consumption. However, because gut bacteria play a critical role in this process,...