Wednesday, March 3, 2010
Go Nuts With Walnuts
Although walnuts boast heart-healthy oil like most nuts, they have an added edge. Most nut oil is monounsaturated, but walnuts primarily contain the polyunsaturated variety. In fact, they're the only nuts - and one of the few foods -- that offer significant amounts of a crucial type of polyunsaturated fat called alpha-linolenic acid, or ALA, which is an omega-3 fatty acid. ALA protects the heart in several ways: It improves your ratio of good to LDL bad cholesterol, and it reduces inflammation, helping to block the conversion of cholesterol into harmful, artery-clogging plaque. ALA also plays a significant role in the development of the brain and cognitive function; low levels of ALA have been associated with depression and other mood disorders.