Can people only eat fruits and vegetables without drinking water to keep the water they need every day?

⑴. Carbohydrate: Carbohydrate is the main source of human thermal energy, and its main component is starch. Sugar-containing food is mainly sucrose,

Lactose. Vegetables, fruits and cereals are rich in starch. In addition to absorbing glucose from vegetables and fruits, the human body also breaks down carbohydrates in the liver and converts them into glucose, while the pancreas also secretes insulin. Let the glucose in the blood increase, and the glucose that does not need to be converted into heat energy will become fat. So eating more and exercising less will increase fat.

⑵. protein: protein is mainly composed of amino acids, and protein is found in meat, fruits and vegetables. But the content of protein in vegetables is much lower than that in meat. Eggs are also rich in protein. Eating no more than 300 grams of cholesterol every day will not harm our health. In that case, we will eat 3-4 eggs a week. In addition, it should be noted that lean meat is rich in protein.

Rich and fatter.

⑶. Fat: The function of fat is to create heat for human body, increase physical strength and keep body temperature. Proper fat is necessary for human body. Digested fat releases fatty acids, which can help cells grow and repair. Some fats are important sources of vitamins A, D, E and K ... Many foods we eat every day contain fat. Vegetable oils such as coconut oil and palm oil contain a lot of fat. Eating too much saturated fat will not only make people obese, but also increase blood cholesterol and increase the chance of heart disease. So remind everyone that it is healthier to eat foods containing unsaturated fat. Such as fish, chicken, olive oil, sunflower seeds, etc.

Vitamins can help people digest food and improve disease immunity. As long as you have a balanced diet and don't need special supplements, you will naturally get the vitamins you need. Vitamins can control the growth and repair of tissues, stimulate the generation of heat energy and ensure the normal work of cells. Vitamins are divided into two categories, fat-soluble vitamins and fat-soluble vitamins. Fat-soluble vitamins include vitamins a, d, e and K.

Vitamin A: It can promote human immunity, maintain the health of skin and hair, and protect the respiratory digestive tract and the inner wall of urethra from infection. Vitamin A can also improve vision. Its intake channels are mainly milk, cod liver oil, liver and so on.

Vitamin D: mainly comes from cod liver oil, egg yolk, milk and other foods. Its best source is sunlight, and vitamin D is made by sunlight under the skin. Eating more foods containing vitamin D can increase calcium and phosphorus, strengthen teeth and bones, and maintain blood coagulation, muscle and nerve health.

Vitamin E: It comes from vegetable oil, green vegetables, fish and meat. It can help increase muscle and red blood cells. It can protect lung lining and other tissues and reduce cell aging.

Vitamin K: This vitamin is necessary for normal blood coagulation. The human body can usually make vitamin K by itself. Vegetable oil, liver and egg yolk also contain vitamin K.

Fat-soluble vitamins, including vitamins B and C, need to be supplemented frequently because they are excreted through the urethra.

Vitamin b 1: found in whole wheat bread, liver, beans and meat, it can promote the normal metabolism of sugar and fatty acids, help the human body get energy from food, and contribute to the normal function of the heart and nervous system.

Vitamin b2: It comes from milk and vegetables and is necessary for skin and oral health.

Vitamin b6: mainly comes from potatoes, bananas, fish and other foods. It can promote the formation of red blood cells and antibodies, and help the human body absorb protein properly.

Vitamin b 12: Lean meat, liver and dairy products all contain this substance. Eating more contributes to intracellular inheritance.

Calcium, such as red blood cells, white blood cells and intestinal cells, can keep the nervous system healthy.

Vitamin C: Fresh fruits and vegetables contain vitamin C, which can absorb more nutrients when eaten raw. Can ensure the health of teeth, bones and blood vessels, as well as antioxidant function, enhance immunity and accelerate wound healing.

5. Minerals: Minerals can be divided into at least 12, which cannot provide heat, but are very important for human metabolism. Generally speaking, we just need to keep a balanced diet, and we don't need to supplement minerals, except iron, calcium and iodine.

Sodium: mainly comes from salt, which can control the water balance in the body and maintain the normal heart rhythm.

Magnesium: Foods containing magnesium mainly include soybeans, milk, nuts, fish and green vegetables. Magnesium can maintain the health of teeth and bones. A chemical reaction that promotes the generation of heat energy in cells.

Potassium: Meat, milk, vegetables, bananas and oranges in fruits all contain potassium. Potassium can control the balance of water in the body and maintain normal heart rhythm.

Calcium: Milk, beans, hawthorn and other sour fruits all contain calcium, which can promote blood coagulation, in addition, it can help muscles contract and strengthen bones and teeth.

Iron: Iron exists in meat, green vegetables, eggs and other foods, and is an important component of red blood cells and enzymes.

Zinc: mainly from lean meat and seafood, of course, beans also contain zinc. Zinc can maintain the health of skin and hair and promote

The human body grows normally.

Iodine: mostly contained in marine food, it can help to form thyroid hormone and regulate the speed of metabolism.

Selenium: Meat, seafood, mushrooms and garlic all contain selenium. Selenium is a very good antioxidant, which can improve human immunity and protect the integrity of cell membrane.

Water: Water is an indispensable element for human survival. At the same time, people can live without food and not without water. Its biggest function is to regulate body temperature, moisten skin, deliver nutrition and help human body remove garbage. Normal people need to drink eight glasses of water every day. Some people suggest that drinking water will lead to obesity, which is an incorrect concept, because water will be excreted with urine.

(7) Cellulose: The intestines and stomach of the human body need the stimulation of cellulose to promote the effective excretion of wastes in the body through the intestines and stomach. Cellulose can also regulate the nutritional absorption of blood by the intestine, so that excess cholesterol is not absorbed and excreted with feces.

The way to increase the body's absorption of cellulose is to eat more fruits and vegetables with long fiber, such as celery, spinach, apricots and strawberries. If you are sure that the fruit you eat is not polluted, you'd better eat it with the skin. Young people have a good mouth, so it's best to eat fruit directly, and don't use juice instead of fruit. But remind everyone that sometimes too much cellulose intake will cause gastrointestinal discomfort, so be temperate when eating.

Vitamins are: Vitamins are a huge family, and there are dozens of known vitamins, which can be roughly divided into two categories: fat-soluble and water-soluble. 1, fat-soluble retinol (vitamin a) 2, water-soluble thiamine (vitamin b 1) 3, water-soluble nicotinic acid (vitamin b3)4, water-soluble riboflavin (vitamin b2). 5. Water-soluble pantothenic acid (calcium pantothenate) 6, water-soluble biotin (vitamin b7) 7, water-soluble folic acid (vitamin b9) 8, water-soluble cobalamin (vitamin b 12) 9, water-soluble choline 10, water-soluble inositol1. Water soluble ascorbic acid (vitamin C) 65433.

Trace elements are:

It has been confirmed that there are 18 kinds of essential trace elements related to human health and life, namely iron, copper, zinc, cobalt, manganese, chromium, selenium, iodine, nickel, fluorine, molybdenum, vanadium, tin, silicon, strontium, boron, rubidium and arsenic.

Minerals are: according to their contents in the body, they can be roughly divided into macro elements and trace elements.

The essential minerals for human body include major elements such as calcium, phosphorus, potassium, sodium and chlorine, and trace elements such as iron, zinc, copper, manganese, cobalt, molybdenum, selenium, iodine and chromium.

However, the main minerals necessary for the human body are:

Calcium, magnesium, potassium, phosphorus, iron and zinc

Finally, talk about the eight nutrients you mentioned: As far as I know, if there were no eight nutrients you mentioned, there would be seven.

The essential nutrients for human body are protein, fat, sugar, inorganic salts (minerals), vitamins, water and cellulose.