The value of corn lies in the fact that eating in moderation can replenish the nutrients and energy needed by the organism, and also maintain normal life activities to a certain extent. In general, every 100 grams of fresh corn contains 71.3g of water, 4g of protein, 1.2g of fat, 22.8g of carbohydrates, 16.0mg of vitamin C, 238mg of potassium, 117mg of phosphorus, 1.8mg of niacin and so on, so corn has a certain nutritional value. Although corn has the above value, but daily should avoid long-term, large quantities of corn, in order to prevent aggravate the burden on the gastrointestinal tract. It is worth noting that the daily diet must ensure food diversity, dietary nutrient balance, do not favoritism picky food, so as not to lead to the body lack of nutrients. It is recommended that people eat a moderate amount of corn, should also be properly preserved. When the corn is spoiled, pay attention not to continue to eat.