Corn is a food that contains not only carbohydrates and dietary fiber, but also contains a variety of nutrients, so the statement that corn is a carbohydrate or dietary fiber is incorrect. Corn has a high nutritional value, the main components are carbohydrates, dietary fiber to, but also contains a variety of vitamins and minerals. The proportion of carbohydrates is 22.8%, which can be used as a better food source of carbohydrates. And the proportion of dietary fiber in corn is 2.9%, which is a good vegetable source of dietary fiber. In terms of minerals, the potassium content of corn is 238mg/100g, which is more than most similar foods, and can be used as a food supplement source of potassium in daily life. It is worth noting that consumption of corn in large quantities for a long period of time should be avoided to avoid burdening the intestines and stomach. For balanced nutrition, attention should be paid to dietary combinations, and corn and meat can be consumed together.