High-fiber diets reduce the risk of heart attack, stroke, and cardiovascular disease. They act by lowering cholesterol and promoting a healthier lipid profile for people eating a Westernized diet.
Dietary fibers are carbohydrates that are selectively metabolized by gut microbes but are otherwise indigestible by humans.
Understanding how they affect the microbiome and in turn human biochemistry and physiology is critical for effectively using dietary fiber supplementation to improve human health.
Chemically, fibers are diverse in length, branching, charge, solubility, and other properties. “They are usually studied as complex mixtures from their plant source,”
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