5. Add probiotics to your diet
It is a myth that all bacteria is unhealthy. In fact, there are lots of bacteria that are great for you. Probiotics are one type of healthy bacteria. They affect your digestion by enhancing nutrient absorption, breaking down lactose, and strengthening the immune system. They can even help treat irritable bowel syndrome. Low-fat yogurt and kefir are both solid sources of probiotic bacteria.
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