Comment by davoneus
Oat fiber. I've been taking 30g of oat fiber everyday for the past 3 years. Slugging it down in 8oz of warm water and 10g of nooch. Not only are my cholesterol levels fantastic after starting that regime, but very regular as well.
fiber is important but the unique cholesterol benefits from oats is around glucans esp. β-glucan
also found in mushrooms, rye, some fruits, pectin, etc.
oat fiber is fine but you'd probably see similar benefits from psyllium husks or other fiber sources.