Nature's Plus® Sunflower protein is a complete organic protein because it provides all of the essential amino acids. Its most noteworthy feature is its high concentration of branched-chain amino acids, which are well known for their ability to promote muscle growth and strength. Nature's Plus Sunflower Protein contains over 19% BCAAs. But Sunflower protein isn't just for bodybuilders and athletes; seniors use BCAAs, together with exercise, to help counter the muscular decline of aging. An additional benefit of BCAAs is the support of nitric oxide production, which nutritionally supports vascular function, brain function and healthy reproductive organ function.