Some of the benefits of eating buckwheat grains include lower cholesterol levels and the ability to more easily control blood sugar, which is important for diabetes patients, states The World's Healthiest Foods. Buckwheat grains also help women to prevent the development gallstones, because of the high level of insoluble fiber.
Because buckwheat is a whole grain, consuming it at least six times a week helps postmenopausal women from developing high blood pressure and high cholesterol, notes WHFoods.com. The key ingredient in buckwheat that promotes heart health is rutin, which is a flavonoid. These flavonoids help prevent blood clotting, leading to increased blood flow. Buckwheat also helps lower blood glucose levels and insulin responses.