How many calories do people need to consume in summer?

In summer, the human body needs more calories, and people need to eat more nutritious food in summer than in winter to make up for body consumption.

First of all, water and salt should be supplemented in summer. Due to a lot of sweating, not only the water in the human body is constantly lost, but also the salt in the body is brought out with sweat. If it is not supplemented in time, it will cause imbalance of water and salt in human body, leading to heatstroke symptoms such as circulatory failure and heat spasm. Therefore, water should be replenished in time in hot weather, but a small amount should be drunk many times, usually 300 ml-500 ml at a time.

Generally speaking, it is believed that the winter weather is cold, and the human body needs to consume more calories and nutrients than in summer in order to keep constant. However, scientific research shows that, on the contrary, people need far less calories in cold winter than in hot summer. The reason why this happens is that the metabolism of nutrients in the human body is obviously different in different degrees of environment.

At high temperature, in order to dissipate heat in the body, the amount of perspiration per day can be as high as 3 to 10 liter. Theoretically, every time the human body flows out and evaporates 1 liter of sweat, it can take away 580 calories from the body. In addition to about 99% moisture, there are 0.3% trace elements such as sodium, potassium, calcium and magnesium and inorganic salts in the sweat. These substances are extremely precious to the human body. In addition, sweat also contains nitrogen-containing substances such as lactic acid, urea, ammonia and amino acids, especially high temperature can accelerate the decomposition of protein in human tissues, and sweat contains more lysine; Excessive sweating will also lead to the loss of excessive water-soluble vitamins such as vitamin C, B 1, B2, etc.

Experts suggest that in order to spend the hot summer, people who are in poor health or healthy should pay attention to improving the working and living environment and take heatstroke prevention and cooling measures; And pay attention to eat some nutritious and necessary foods in summer than in winter, eat more animal foods with more lysine and eat more fruits with more vitamins, so as to ensure the normal metabolism of the body in summer.