Flaxseed is one variant of healthy snack shaped grains. At first glance Flaxseed is similar to the red brown sunflower seeds. The only difference is the smaller size. Flaxseed contains omega-3 fats, vitamin B1, copper, manganese, fiber, magnesium, phosphorus, and selenium. Some of the benefits of flaxseed include maintaining heart health, maintaining cholesterol and blood pressure, preventing cancer, stabilizing blood sugar, and helping detoxify.