Alpha-linolenic acid (ALA) is an essential omega-3 fatty acid found in nuts such as walnuts. It is necessary for normal human growth and development.
Alpha-linolenic acid is thought to decrease the risk of heart disease by helping to maintain normal heart rhythm and pumping. It might also reduce blood clots. Common dietary sources include vegetable oils such as flaxseed and canola oil, as well as red meat and dairy productts.