Vitamin A deficiency can also reduce the body's antibody response, leading to decreased immune function. Among many foods, the best vitamin A supplement is carrot. Carrot is a crispy and nutritious home-cooked dish. Traditional Chinese medicine believes that it can tonify the middle qi, strengthen the stomach and promote digestion, strengthen yang and soothe the five internal organs, and has a good effect on dyspepsia, chronic dysentery, cough, night blindness and so on. It is known as "Oriental Small Ginseng". After being fried and eaten, it can be converted into vitamin A in human body, which can improve human immunity and indirectly kill cancer cells.