Carrots contain protein, fat, carbohydrate, calcium, phosphorus, iron, riboflavin, nicotinic acid, vitamin C and other nutrients, among which carrots have a high content. Carotene can be converted into vitamin A in the intestine and liver after entering the human body, so it is also called vitamin A source and is one of the important sources of vitamin A in the diet. Vitamin A has the functions of protecting eyes, promoting growth and resisting infectious diseases, and is an indispensable vitamin for children. When lacking, the skin is dry, the respiratory mucosa resistance is low, and it is easy to be infected, and it is easy to suffer from dry eye, night blindness, growth retardation, bone marrow and tooth dysplasia. Carrots don't have to be eaten raw in the morning and evening.