Carrots originated in Western Asia and were introduced into the European continent in the 10th century. They were cultivated in Britain in the 15th century and introduced into the United States in the 16th century. It was introduced into China in the 12th century, and Japan introduced it from China in the 16th century. Carrots are adaptable, easy to cultivate and widely planted.

The nutritional value of carrots has been paid more and more attention by people. This is mainly because carotene in carrots is the main source of vitamin A, which can promote growth, prevent bacterial infection, and protect epidermal tissue, respiratory tract, digestive tract, urinary system, and other epithelial cell tissues; Lack of vitamin A will lead to conjunctival dryness, night blindness, cataract, muscle and internal organ atrophy, genital degeneration, and other diseases.

For ordinary adults, they need to take 2200 international units of vitamin A every day to maintain normal life activities. It has the effect of preventing cancer, and it is believed that this is mainly due to the conversion of carotene into vitamin A in the human body.

Carrots contain a kind of quercetin, which can increase coronary blood flow, promote adrenaline synthesis, and have the effects of reducing blood pressure and inflammation. The oil content of carrot seeds is up to 13%, which can drive Ascaris lumbricoides and cure dysentery that cannot be cured for a long time. Carrot leaves can prevent chickenpox and acute icteric hepatitis.

Drinking carrot juice regularly can prevent night blindness and dry eye disease, enrich skin, flatten wrinkles, eliminate spots, and keep hair healthy. Especially for smokers, eating some carrot every day has a better effect on preventing lung cancer.