Whole wheat food refers to the food made by grinding wheat without bran into flour, which is darker in color and rougher in taste than refined flour without bran, such as the rich and strong flour we usually eat, but it has higher nutritional value because it retains a lot of vitamins, minerals and cellulose in bran. Whole wheat is a grain made of whole wheat flour and raw wheat. Whole wheat flour is an all-natural food, in which wheat is washed, dried and crushed to make flour. Whole wheat food can keep you healthy.

Whole grain food is a kind of healthy grain food, and the word "whole grain" is often marked on the food packaging bag of grocery store. Whole grain food has certain health care function because of its high dietary fiber, low fat, low saturated fatty acid, low cholesterol and low calorie. Through research, it is found that eating whole grains can help to avoid the occurrence of cancer, cardiovascular disease, diabetes and obesity, and reduce the incidence of coronary heart disease. Eating whole grains can also greatly control the occurrence of recessive diseases.