Among all the grains, oats appear to be the most effective when it comes to lowering cholesterol. In fact, back in 1997, oatmeal was granted the first food-specific health claim permission by the FDA, based on research showing that soluble fiber from oats lowers the risk of heart disease.
Soluble fiber, which dissolves in water, forms a gel in the intestines. This gel traps some of the cholesterol in your body, so it's eliminated as waste instead of entering your arteries. Some evidence also suggests that eating oats helps regulate blood sugar levels and helps you feel full.
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