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"It seems that dietary fiber is a really important driver of microbial diversity in our bodies. Fiber consists of large numbers of different carbohydrates — many we can't digest, but our bacteria in our guts can. If we eat low-fiber diets, we narrow the range of our microbial partners.
Simple measures like probiotics — adding a few strains of microbes in the hope that they will take hold and remedy health problems — have been largely unsuccessful. It will take more
... If we want to add microbes to our bodies, we'll need to think about whether we need to eat certain foods to nourish the microbes we're taking."1Human gut bacteria may have existed for millions of years, maybe before the evolution of people.
If wheat consumption, through some as of yet unknown mechanism, interferes with blood flow to the brain in susceptible individuals, and as a result disrupts the executive functions of the brain, abstaining from it should be considered a reasonable precautionary behavior, assuming we wish to retain these critical functions related to morality, cognizance, and social responsibility.
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