Coarse grains are rich in insoluble cellulose, which can ensure the normal operation of digestive system. Eating more coarse grains is good for improving indigestion. It can also reduce the concentration of low-density cholesterol and triglyceride in blood together with soluble fiber, increase the residence time of food in the stomach, delay the absorption of glucose after meals, and reduce the risks of hypertension, diabetes, obesity and cardiovascular and cerebrovascular diseases. However, we should also pay attention to the choice of coarse grains. We need a variety of coarse grains to match, and eating one often doesn't work well. If you want to be safe, natural and organic, I think the millet and soybeans on Dijiu Health Online are good. These things are safe to eat.