protein
Protein is one of the essential nutrients for human body, which is distributed in every cell of the body. It participates in the formation of human tissues, regulates various physiological activities, completes sports, transports gas, and exercises a series of physiological functions such as growth, reproduction and inheritance. Specifically, protein's physiological functions include: forming cells and tissues, repairing body tissues, providing heat, synthesizing enzymes and hormones, forming antibodies, regulating osmotic pressure, and maintaining normal pH of blood.
[Food rich in protein]
Generally speaking, protein from animals such as beef, fish, poultry and milk contains a lot of essential amino acids. Protein from plants, such as beans, nuts and cereals, contains fewer kinds of amino acids. Eggs provide near-perfect complete protein, followed by milk's protein value. Other foods containing more protein are chicken, cheese, lean meat, tofu, peanuts, whole wheat bread, brown rice and so on.
[Beware of "protein Poisoning"]
Sometimes, some people who are weak will have abdominal distension, dizziness, weakness of limbs and other symptoms after eating a large number of eggs, and even coma or even death in severe cases. This is the so-called "protein poisoning". This is because "poisoned" people's gastrointestinal digestive function is reduced. Eating too many eggs will lead to too high protein content in the body, and then it will decompose abnormally in the intestine, producing a lot of ammonia. Too high blood ammonia will easily lead to coma and various "protein poisoning" symptoms.
lipin
Lipid is one of the important nutrients in food, mainly including fat, lipids and sterols. Fat is the main source of human physical strength; Phospholipids in lipids are important components of cell membranes; Sterols mainly include cholesterol and sex hormones, which have a positive effect on maintaining normal metabolism of the body.
[Foods with high cholesterol content]
Cholesterol is one of the important steroids in human and animals, and it is a common lipid nutrient. Foods with high cholesterol are: sheep liver, eel, pig brain, egg yolk, cow brain, squid and so on. Every100g of food contains 500 mg of cholesterol; Foods with cholesterol content exceeding 200mg per100g of food include: pig liver, pig skin, eggs, shellfish, etc.
[Avoid eating too much fat]
People are paying close attention to diseases caused by eating too much fat: too much fat will make people obese, which will lead to obesity, and even lead to diabetes, gallbladder disease, hypertension and heart disease. Even if there is no obesity problem, fat intake is directly related to heart disease. In addition, high-fat diet can also lead to intestinal cancer, hearing loss and so on.
carbohydrate
Carbohydrates are synthesized by photosynthesis of plant chlorophyll under sunlight, so carbohydrates include glucose, sucrose, maltose, lactose, starch, cellulose, glycogen and so on. They can promote human growth and provide heat for the body. Among them, glycogen can enhance the detoxification function of the liver, and cellulose can reduce the deposition of cholesterol in the body and increase the excretion of cholesterol, which is quite beneficial to health. Grains, vegetables and fruits contain more carbohydrates.
[Eating sugar reasonably is good for health]
In many people's minds, sugar is the chief culprit of heart disease, diabetes and breast cancer. There is no denying that excessive sugar can easily lead to obesity, fatigue and other problems, but eating sugar reasonably is very beneficial to the body. Because sugar can quickly replenish physical strength and prevent people from eating too much other food. Both natural sugar and synthetic refined sugar in food are beneficial. Taking sugar from grains, vegetables, beans and fruits is more beneficial to health.
[Effect of cellulose on human body]
Cellulose, including crude fiber, semi-crude fiber and lignin, belongs to polysaccharide compounds. It can be combined with Escherichia coli to form a variety of vitamins to meet the needs of human body. Lack of cellulose in the diet can lead to "cellulose deficiency". Because of its small proportion and large volume, regular consumption of cellulose can reduce hunger and help obese people lose weight. Moreover, cellulose has a large volume, which can stimulate the gastrointestinal tract, increase the secretion of digestive juice and cause gastrointestinal peristalsis after eating.