Grain
Hunger breeds discontentment, generally refers to rice, wheat, corn, soybean, corn, potato, also used to other than rice and flour as food grains, and grain also refers to food crops. In the "Yellow Emperor". Besides put forward the "grain for the support, five fruit, five animals for the benefit, five dishes for the charge, while the clothes of the odor together with diet supplement Qi Jing" principle, but also shows the dominant position in the whole grains in the diet.