People eat every day is to get a variety of nutrients in food. Only by obtaining sufficient nutrients, people can maintain a healthy body. People every day thinking activity work breathing sweating defecation and so on will consume a certain amount of nutrients, so people will feel tired, sleepy, which is the human body to give you back a signal: it is time to replenish the nutrients. The human body has an amazing system ----- regeneration system. It is like a cut on the hand, after a few days, the wound will heal, this is the magical self-repair function, to start this function needs to be eaten every day in the meal of nutrients. And the strength of this self-repairing function lies in the adequacy of the amount of nutrients ingested. "Only by getting enough nutrients can we replenish the body's consumption and at the same time repair the body's damage on its own. If we compare the human body to a building, then nutrients are the bricks that make up the building. Today lack of a little, the body will be less a brick, tomorrow lack of a little, will be less two bricks, so a piece by piece of the lack of go on, lack of a certain time, the repair is difficult, the disease arose. When the nutrients are so deficient that they cannot be repaired, the building collapses and the person is finished." This process either takes fifty or sixty years, or forty or fifty years, and is now moving towards a younger age. This shows how much of a role nutrients play in the human body. Let's talk about the seven nutrients a person needs. 1: Protein. Fish, meat, beans, eggs and milk are foods that are rich in protein. 2: Carbohydrates. Also called sugars, rice, white flour, millet, corn, sweet potatoes, etc. are sugars. 3: Fats. Carbohydrates are able to be converted into fat when the body does not consume them all. Also meat is the best supplement for fat. 4: Vitamins. As the name suggests, the elements that sustain the body's life. All foods contain a variety of vitamins. Some of the vitamins are: vitamin A, vitamin B family, vitamin C, vitamin D, vitamin K, vitamin E, etc. 5: Minerals. This everyone has know. Calcium. Magnesium. Zinc. Copper. Manganese. Iron. Chromium. And so on. 6: Cellulose. There are two kinds of cellulose: 1 water-soluble cellulose and 2 lignocellulose. Water-soluble cellulose plays an important use in cleaning up magazines in the blood vessels; lignocellulose plays an important role in cleaning up the colon. 7: Water. Water is the source of life. As long as a person can take enough of these seven nutrients in a balanced way every day, health will be especially favorable to you, and diseases will be scared away from you. Therefore, diet plays a decisive role in human health.