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What you eat regularly or don’t eat determined the germs in your digestive tract. Many microbial species exist in the human intestine, digest fiber, make vitamins and other molecules. They also strengthen the immune system and protect against harmful bacteria.
Antibiotics, cesarean sections and other lifestyle changes have also changed the composition of microbes in the human gut. People that are eating meat, berries, fruits and vegetables have gut bacteria different and more diverse than the gut bacteria of those that eat processed foods. What we eat can change the balance of microbes in our digestive tracts
Different gut microbes changes with the seasons and diet. Human microbiota can change significantly from day to day, or within hours, in response to what we have been eating.
Foods can increase the populations of some types of bacteria and reduce others, as their relative numbers change, they secrete different substances, activate different genes and absorb different nutrients.
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