Apple as a food does not have the efficacy and function of treatment, but it is rich in nutrients, eating an apple every day can replenish carbohydrates, vitamins, minerals and other nutrients. Apple is a common fruit in life, every 100g of apple has 240KJ, of which 85.9g of water, 0.2g of protein, 0.2g of fat, 13.5g of carbohydrates, in addition to this, apple also contains a large amount of vitamin C, carotene, calcium, phosphorus, magnesium, iron and other trace elements, which are rich in nutrients and have high nutritional value. Eating apples can supplement the nutrients needed by the human body, which is conducive to the body’s absorption of minerals and vitamins, and maintain the normal physiological function of the body. It is recommended to maintain dietary diversity on a daily basis and increase the variety of fruits and vegetables to ensure balanced, reasonable and comprehensive nutritional intake.