Studies have shown that engaging in physical activity at a moderate level of intensity has a positive effect on metabolism and the microbiome. Intense training (over 70% of VO2max) reduces microbiome diversity but only in the short term. Elite endurance athletes have high levels of short-chain fatty acids (SCFA) in the gut. SCFAs are producers of healthy gut bacteria.
A sedentary lifestyle, however, is associated with, not only the development of chronic disease, but a loss of muscle mass. This loss of muscle mass, according to experiments conducted in experiments studying the effect of weightlessness on the body, occurs in conjunction with a decline in the amount of SCFA produced, and the microbes that are produced from them.
Other ways to increase SCFA in the gut? Lactobacillus is a bacteria that makes short-chain fatty acids in the intestine. To promote optimal lactobacillus levels, eat more veggies, such as leeks, Jerusalem artichokes, asparagus, onions and garlic. Other foods, such as Kefir, sauerkraut, miso, bananas, yogurt and sourdough bread are helpful.
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