Too little intake of protein is harmful to human body, causing malnutrition and other symptoms. Similarly, excessive intake of protein will cause obesity, increase the burden on the kidneys and easily lead to osteoporosis. Excessive intake of protein (especially protein) is also harmful to human body.
1. First of all, with the excessive intake of animal protein, more animal fat and cholesterol will inevitably be ingested, thus increasing the risk of hyperlipidemia and coronary heart disease.
2. Secondly, because the human body does not store protein under normal circumstances, and protein takes in too much, it is necessary to decompose too much protein deamination into nitrogen-containing waste, and discharge it in the form of urine, which requires a lot of water, thus increasing the burden on the kidneys. At the same time, too much nitrogen in the body will cause protein's poisoning.
3. In addition, excessive intake of animal protein will also lead to excessive intake of sulfur-containing amino acids, accelerate the loss of calcium in bones, and easily lead to osteoporosis.
4. Finally, if protein is ingested too much, protein can not be effectively decomposed and absorbed in the intestine, and gastrointestinal peristalsis will slow down, which will increase the absorption of toxic substances in the gastrointestinal tract and endanger health. A large amount of protein will produce gas in the intestine, and it will also lead to the vigorous growth of intestinal bacteria, and induce abdominal distension, intestinal infection and other diseases.
Adults are advised to take 80 grams of protein every day. 1 infant under 0 years old needs to consume protein1.5 ~ 3g per kilogram of body weight every day; 14-year-old male adolescents need more protein every day, which should reach 85g；; Pregnant women and lactating mothers need to consume 100g protein every day.
The human body must take a certain amount of protein every day to maintain the body's nitrogen balance. If protein is ingested too little, protein will be lacking. There are two forms of protein deficiency: one is simple protein deficiency, which is mainly caused by the lack of protein and other nutrients in the diet; The other is energy malnutrition in protein, which is caused by protein and insufficient energy intake. Protein and energy intake of protein-energy malnutrition patients should be higher than that of normal people. Thin patients should be supplemented with protein, and patients with edema should be supplemented with energy.
Protein is widely found in animal and plant foods. Animal protein has good quality and high utilization rate, but it is rich in saturated fatty acids and cholesterol at the same time, while plant protein has low utilization rate. Therefore, it is very important to pay attention to protein complementarity and proper collocation. Soybean can provide rich and high-quality protein, and its health care function is increasingly recognized by the world. Milk is a high-quality food source in protein, which is rich in various nutrients. China's annual per capita milk consumption is very low, so we should vigorously advocate all kinds of people in China to increase the consumption of milk, soybeans and their products.