Oats, oat bran, and oatmeal all contain a specific type of fiber known as beta-glucan.
Since 1963, study after study has proven the beneficial effects of this special
fiber on cholesterol levels.
Oats, via their high fiber content, are already known to help remove cholesterol
from the digestive system that would otherwise end up in the bloodstream.
Now, the latest research suggests they may have another cardio-protective
mechanism.
Antioxidant compounds unique to oats, called avenanthramides, help prevent
free radicals from damaging LDL cholesterol, thus reducing the risk of cardiovascular
disease.
In addition to its fiber benefits, oats, just like the brazil nuts we use, are
a very good source of selenium. A necessary cofactor of the important antioxidant glutathione
peroxidase, selenium works with vitamin E in numerous vital antioxidant
systems throughout the body. These powerful antioxidant actions make selenium
helpful in decreasing asthma symptoms and in the prevention of heart disease.
In addition, selenium is involved in DNA repair and is associated with a
reduced risk for cancer, especially colon cancer.
Source: http://www.whfoods.org/genpage.php?tname=foodspice&dbid=54#healthbenefits