Fruit is one of the important foods in people's daily life. It has a bright color, rich fruity, sweet taste. Although many species and varieties exist, they have many similar characteristics in terms of nutrient composition and nutritional value. They contain a variety of nutrients needed by the body and are one of the most important sources of vitamins and inorganic salts in the body. What is the nutritional value of fruit? carbohydrate: Fruits can provide energy to the body. Carbohydrates contain carbohydrates and starchy substances. They are produced from carbon and water, and burn to generate heat. They have the function of promoting the operation of internal organs and serving as fuel. Fruits generally contain fructose, glucose, sucrose and other three kinds of sugar, such as apples, pears mainly fructose; grapes, strawberries, kiwi and other glucose-containing; citrus, peach, plum, apricot and other sugar-based. The sugar content of various fruits is generally between 10% and 20%, and dates, dates, coconuts, and bananas with sugar content exceeding 20%. Low sugar content of strawberries, lemons, bayberry, peach and so on. Before ripening, the carbohydrates are mainly starches, which gradually change into sugars as they mature. As the sugar content increases, the ratio of sugar and acid in fruits also gradually changes. Therefore, the fruit after maturity is generally reduced in acidity and increased in sweetness. Vitamins: Fruits contain all the vitamins Vitamin A Vitamin A has a great effect on the health of the eyes and is an important nutrient for protecting the eyes. Vitamin A also protects the body's cells, including the maintenance and perfection of superficial cells. In addition, it can also protect organ cells in the body, such as the lungs, throat, and digestive organs. The source of vitamin A in fruit is mainly transformed into vitamin A after the carotenoid contained in the fruit has been introduced into the body. Fruit is also an important source of vitamin A intake in the human body. Vitamin B1: When vitamin B is exposed to high temperatures, it will exhibit an unstable state with strong water-solubility. Once ingested in the body, it can cause beriberi, constipation, loss of appetite, and overall fatigue. Vitamin B2 Vitamin B2 is similar to vitamin B1 in that it is also water-soluble, and when it is exposed to high temperatures, it will be in an unstable state. In the absence of the human body, it will cause angular cheilitis, inflammation of the mouth, and affect human development. Vitamin B6 Vitamin B6 is one of the thirteen kinds of nutrients needed by the human body. It is the main substance that forms serotonin in the human body. It has the effect of calming nerves, makes people feel good, and is very hot to the air and light. Sensitive, but also easily lost in processing or cooking. Taking vitamin BB from fruits is the best method, common fruits that contain vitamin B6 include bananas, watermelons, melons and so on. Vitamin B1 Vitamin B1, also known as folic acid, helps the body produce nucleic acids, and it is the main substance for rapid cell regeneration. The main role of folic acid is to metabolize human proteins, as long as the human body lacks folic acid or vitamin B1. Even if the body contains a lot of iron, it will still cause anemia. Therefore, in order to maintain our physical health, usually more folic acid should be added, many fruits contain folic acid. Vitamin C Vitamin C has the function of reconciling the acid and hormones in the human body, and has the function of promoting the regeneration of blood cells. If the body lacks vitamin C, it will weaken the vascular resistance and cause bleeding gums, and may also cause scurvy and so on. Almost all fruits contain vitamin C. Vitamin C in fruits is the "best weapon" for metabolizing oxidized waste in the body. However, vitamin C is easily soluble in water, and when it is hot or the food is not fresh, it is easily damaged and gradually lost. Vitamin C is widely found in fresh fruits, green leafy vegetables, and meats. The contents of Chinese herbal medicines such as hawthorn, ebony, cocklebur, and vinegar and vinegar are also abundant. Vitamin D Of all the vitamins, vitamin D is the most special one. Because all the vitamins come from food, only vitamin D is found in only a few natural foods, and it is mainly produced by the skin of the human body through ultraviolet rays in the sun. Therefore, vitamin D is also known as "sunshine vitamins." It has the function of promoting the healthy development of bones. When it is lacking, it will affect the skeletal development and even cause rickets. Vitamin D is mainly derived from animal foods, and some nuts also contain vitamin D. But the amount is not much, so you can't rely on fruit to supplement vitamin D.
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