Cholesterol is fatty acid substance produced by the liver and other cells in the body.
Meta-analysis examining soluble fiber sources from oats bran reported a small but significant reduction in serum cholesterol levels (Am. J. Clin. Nutr., 69:30-42, 1999).
A bowl of oatmeal has about three grams of fiber, and it is these three grams of water-soluble oat fiber that can lower cholesterol level nearly 8 to 23 percent.
Moreover, every 1 percent drop in cholesterol level can help reduce the risk of heart disease by 2 percent.
Beta-glucan binds to cholesterol in the intestine preventing it from being absorbed into the blood.
In 1963, DeGroot and colleagues published a study that supplemented rolled oats in the form of bread to be consumed daily by 21 male volunteers between the age of 30 and 50. Over a 3-week period, an 11% reduction in serum cholesterol was observed (Am. J. Clin. Nutr., 40:1146-1155, 1984).
Oats can lower body cholesterol