_ _ _ _ _ are the seeds of certain grasses, the most important of which are wheat, oats, rice, barley, corn, rye, and buckwheat.

This is a plant-derived chemical that is not considered an essential nutrient in the human diet but it is believed to have beneficial health effects.

It is the outer layer of the grain (fiber, omega-3 fatty acids, vitamins, and dietary minerals).

These can lower the risk of coronary heart disease, and slow or turn back cancers in animals.

_ _ _ _ _ is an odorless, tasteless, white substance occurring widely in plant tissues and obtained chiefly from cereals and potatoes.