Carrots contain a lot of carotene. The molecular structure of this carotene is equivalent to 2 molecules of vitamin A. After entering the body, it undergoes the action of enzymes in the liver and small intestine mucosa, 50% of which becomes vitamin A, which has the purpose of invigorating the liver. It can treat night blindness; carotene is converted into vitamin A, which is an essential substance for the normal growth and development of bones. It helps cell proliferation and growth. It is an element of body growth and is of great significance to promote the growth and development of infants. Vitamin A helps to enhance the body's immune function and plays an important role in preventing epithelial cell canceration. The lignin in carrots can also improve the body's immune mechanism and indirectly destroy cancer cells. "