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New study finds oat beta glucan is most effective at lowering cholesterol
Earlier studies found that oats lowered cholesterol, but doctors in this new review of placebo controlled studies from 1966 through 2013 discovered that a certain less-processed form of oats—oat beta glucan—was even more effective at lowering cholesterol. Doctors said that denser, less-processed oat beta glucan is able to break away from foods during digestion to form a viscous gel inside the small intestine, boosting its cholesterol-lowering effects compared to more refined oat products.

The study doses ranged from 3 to 12 grams of oat beta glucan per day and lasted up to 12 weeks. In doses of at least 3 grams per day, oat beta glucan reduced LDL, the “bad” cholesterol, twice as much—and reduced total cholesterol 50 percent more—than in previous studies that had not considered the amount of processing of the oat-based foods.

Reference: Am J Clin Nutr. 2014 Dec;100(6):1413-21.
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