A healthy diet should include whole grains. Hypothesize why this type of grain is better for you than bleached flour.
Whole grains not only contain starch but also proteins, fibers for digestion, and vitamins
Whole grains are an organic source of iron.
Whole grains give you the needed amounts of lipids for your diet.
Whole grains can be a source of the nucleic acids needed to build new DNA.