Why do people eat food Why do people eat?

Human demand for food can be divided into three stages: (1) In ancient times, human beings ate food to survive and provide the most basic energy for the body to survive. (2) When human beings develop to a certain extent, they will not only eat food that is good for the body, but also for the sake of satiety.

3) Nowadays, people eat food in addition to intake energy from food, but also eat foods that can make us healthy, such as functional foods, and can also assist diseases.

People are iron, and rice is steel.

It means that people are inseparable from food, just as fish cannot do without water, and the nutrients needed by the human body and the body's immunity need to be transformed through the body's absorption of food.

Because human energy is limited, food can help the human body fight disease and aging.

Because basic energy is required.

You don't have to eat and drink water to your heart's content.

Eat to grow up!!

How can you grow taller if you don't eat, and your body will be strong if you eat!!

Life lies in sports, what do you need for sports?"

It should be for the body's needs of nutrients, physiological needs.

The most basic feature of life on earth is metabolism, once the metabolism stops, life is over, in addition, life to move, to reproduce, these all need energy, and the animal body does not contain chlorophyll, even if there is chlorophyll can not meet the needs of higher animal activities, so the most basic and easiest way to obtain energy and metabolic substances is to eat and drink.

Because the human body needs foreign nutrients to maintain physical strength, if you don't eat when you're hungry, your body will send out an "alarm" so that you don't forget to eat. Hehe! So, don't think about this question all the time, just eat it if you want!

But you have to eat in moderation, otherwise you will get fat.

Man lives to survive and does not eat. Who has the strength to do work and big causes, if you don't eat, you will starve to death, so you must eat.

If you try it, if you don't eat it, you will know what the consequences will be.

Any living thing is an extremely complex chemical factory, constantly carrying out various biochemical reactions. The reaction is closely related to the catalytic action of enzymes. For an enzyme to be active, it must have a coenzyme involved. Many vitamins are known to be coenzymes of enzymes either.

Constituent molecules of coenzymes. Therefore, vitamins are important substances for maintaining and regulating the normal metabolism of the body. It can be considered that vitamins are in the form of biologically active substances that are present in biological tissues.

In fact, any living thing contains a full range of vitamins, otherwise they would not be able to grow properly. However, animals cannot synthesize most of the vitamins in the body, or the synthesis amount is insufficient to meet the needs of the body. Therefore, it must be ingested from plants.

However, vitamins are sensitive to heat. Because humans can't eat raw meat like tigers, can't eat raw grain like cattle and sheep, can't eat raw vegetables like rabbits; Humans must eat cooked meat, they must eat cooked grain, they must eat cooked vegetables. And all these human dietary characteristics make us lose the vitamins that are sensitive to heat.

The only thing we can eat raw is fruit, so the only way for us humans to supplement vitamins is to eat raw fruits. In other words, the nature of human beings to eat cooked food forces humans to eat raw fruits.

What vitamins are in fruits?

Vitamins are a huge family, as far as we know about dozens of vitamins, which can be roughly divided into two categories: fat-soluble and water-soluble. The former includes vitamins A, D, E, and K, while the latter group includes vitamin B and vitamin C, as well as many similar vitamins.

Because people are also in the food chain, if they don't eat, they will die.

Life activities need energy, and the ** of energy is food. If you don't eat, when you don't have enough energy in your body, you will deplete your daily stored energy, and at the same time, you will be asked to replenish, that is, the feeling of stomach growling and hunger are all signals. If you still can't supplement effectively, it will lower your blood sugar...

until vital signs cannot be maintained.

The problem of missing the heart and eye, with a description of smoke

To live! For a better tomorrow!

Replenish energy and nutrients that your body needs.

In order for the paper mill to survive.