A person's birth, old age, illness and death are things that each of us will experience. Although the final result cannot be changed, our changes can make this result come later. Maybe you will find that someone who is also fifty years old has wrinkles and gray hair on the temples. But there are some people who have no traces of wrinkles on their faces, and their black hair is even more enviable. In fact, this has an important relationship with antioxidant nutrients. Vitamin A is an antioxidant nutrient.

Among vitamins, vitamin A, vitamin C and vitamin E are called the iron triangle of antioxidants. The combination of the three can exert a good antioxidant effect. Remove free radicals, delay skin aging, and make skin look younger.

Vitamin A has many functions, such as relieving eye fatigue and dryness, preventing dry eye disease, etc. Vitamin A is also a nutrient with antioxidant effects, and its antioxidant effects cannot be ignored. The recommended intake of vitamin A by the Chinese Nutrition Society is 800 micrograms per day for adults.

Vitamin A is also a nutrient that is easily lacking. If the body lacks vitamin A, skin problems such as dryness, roughness, and even scaling and chapped skin will ensue. Vitamin A is one of the four major nutritional deficiencies in the world. Most people are generally deficient in vitamin A, which requires you to supplement vitamin A every day.

The food source of vitamin A is a bit special. It needs to be emphasized here that vitamin A is not contained in plant foods, and vitamin A only exists in animal foods. Eggs, milk, and meat foods all contain vitamin A, especially animal livers, such as pig liver, sheep liver, chicken liver, etc., which contain higher levels of vitamin A.

Plant foods do not contain vitamin A, but the carotene contained in plant foods can be converted into vitamin A in the body. This is also the main way our body obtains vitamin A. For vegetarian friends, That said, it is also a good way to supplement vitamin A.

Dark-colored vegetables and fruits contain relatively high levels of carotene, such as spinach, lettuce, broccoli, carrots, etc. The content of carotene in fruits is also higher in dark-colored fruits, such as mangoes, watermelons, citrus, mulberries, etc. You will find that the fruits recommended for you often have dark flesh instead of white. When eating fruits, you should mainly focus on the pulp. Choose fruits with dark pulp to get more carotene.

Carotene is a fat-soluble nutrient that is soluble in fat and organic solvents. If you eat fruit on an empty stomach, the carotene contained in these dark fruits has a bit of a bumpy ride in converting to vitamin A. You can choose to eat fruit before meals, which can not only increase satiety and help lose weight. It can also facilitate the absorption of carotene and improve the utilization rate of carotene.

Fruit generally contains sugar, so you need to pay attention to the amount when eating fruit. The more fruit you eat, the better. Adults should control their daily fruit intake within 400 grams. Eating too much will increase the risk of obesity.