You can eat it. Walnuts are rich in vitamins B and E, which can prevent cell aging, strengthen the brain, enhance memory and delay aging. Walnuts also contain special vitamins, which not only do not raise cholesterol, but also reduce the absorption of cholesterol in the intestines. They are suitable for patients with arteriosclerosis, hypertension and coronary heart disease. Oatmeal has high nutritional value and contains a certain amount of calcium and iron, which can smooth the intestinal tract and is the best food for the elderly.