α-Linolenic acid (ALA) is an essential fatty acid found in leafy green vegetables. ALA, as part of a low saturated fat diet, helps prevent cardiovascular disease. ALA decreases blood pressure, serum cholesterol levels, and platelet aggregation.[1]
α-亚麻酸（ALA）是一种存在于绿叶蔬菜中的必需脂肪酸。作为低饱和脂肪饮食的一部分，ALA有助于预防心血管疾病。ALA可以降低血压、血清胆固醇水平和血小板聚集。[1]
Reference:
[1]. Allman, M.A., Pena, M.M., and Pang, D. Supplementation with flaxseed oil versus sunflowerseed oil in healthy young men consuming a low fat diet: Effects on platelet composition and function Eur. J. Clin. Nutr. 49(3), 169-178 (1995).