Food scientists have discovered that buckwheat is a rich source of what is called "biologically available protein." This means that buckwheat has a well-balanced assortment of essential and non-essential amino acids, the building blocks of protein. It is considered a superior source of protein when compared to wheat, rice and even millet. Like citrus fruits, buckwheat is a rich source of rutin, a powerful flavonoid antioxidant. It's also is a good source of Vitamin E, another powerful antioxidant.

Buckwheat is a good source of soluble dietary fiber:

Soluble fiber is a type of dietary fiber that holds water like a sponge. It forms a gel that is responsible for slowing the time it takes food to travel through the digestive tract. It supports the healthy digestion and absorption of nutrients in food. Soluble fiber also slows the absorption of glucose which supports healthy glucose metabolism and also is known to lower blood cholesterol levels.