Walnuts have favorable impacts and benefits for the heart and the cardiovascular system. Considered as one of the most nutritious food, walnuts have high amounts of alpha-linolenic acid, an omega-3 fatty acid that is essential in treating heart diseases.
There is evidence that consuming walnuts and other foods that are high in omega-3 fatty acides helps lower high blood pressure and reverses the hardening of the blood vessels. Alpha-linolenic acid, which helps build cell membranes in the brain, has been found to be helpful in reducing symptoms of depression and attention deficit hyperactivity disorder. ALA is vital in promoting normal body growth, but since it is not a naturally occurring compound, the body needs to consume foods high in ALA to supplement the body's developmental needs.