Inflammation is associated with many lifestyle conditions, including obesity. Several observational studies demonstrate that a high fiber intake is linked to lower levels of inflammatory markers in the bloodstream ( 17, 18, 19) Summary
While acute (short-term) inflammation is beneficial because it helps your body fight foreign invaders and repair damaged cells, chronic (long-term) inflammation is a serious concern because it may begin to attack your body’s own tissues.Ĭhronic low-level inflammation plays a major role in almost every chronic Western disease, including heart disease, Alzheimer’s disease, and metabolic syndrome ( 14, 15, 16). This leads to reduced gut inflammation and improvements in related inflammatory disorders ( 11, 12, 13). They produce nutrients for your body, including short-chain fatty acids that feed the cells in your colon. Gut bacteria are well known for their effect on chronic inflammation ( 10). There, certain soluble fibers help feed the friendly gut bacteria that are essential for good health. Summaryįiber does not get digested and tends to reach your large intestine relatively unchanged.
It is considered very beneficial for health and body weight ( 8, 9).Ĭertain insoluble fibers, such as resistant starch, also function as prebiotics. The fiber that benefits your gut bacteria is known as prebiotic fiber, or fermentable fiber. Soluble fiber passes through your digestive system mostly unchanged, eventually reaching your friendly gut bacteria, which digest it and turn it into usable energy. This is where fiber - soluble, for the most part - steps in. Just like other organisms, bacteria need to eat well to stay healthy. An estimated 100 trillion bacteria live in your gut, primarily in the large intestine ( 2).Īlong with other microbes found in your digestive system, these bacteria are often called the gut flora or gut microbiome.ĭifferent species of bacteria play important roles in various aspects of health, including weight management, blood sugar control, immunity, and even brain function ( 3, 4, 5, 6, 7).
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