The majority of grains should be whole grains, such as wheat, oats, rice, rye, barley, and corn.
Grains. The majority of grains should be whole grains, such as wheat, oats, rice, rye, barley, and corn. These grains are best consumed in whole, minimally-processed forms, because reﬁning and processing can remove many valuable nutrients, including vitamins, minerals, and ﬁber.