It is not very intuitive to understand the daily food needs of normal people from the perspective of calories. For easy understanding, you can directly convert calories into daily food.
Breakfast: a cup of fresh milk 250ml( 160 kcal), an egg (75 kcal), 60 grams of sweet noodles 1 (2 10 kcal), with a total calorie of 445 kcal; Dinner: one set meal of Mai Spicy Chicken Leg Fort, one set meal of Mai Spicy Chicken Leg Fort (570 calories), one set meal of French fries (350 calories), one set meal of pie (240 calories), one set meal of milkshake and Yunna (280 calories) and one set meal of cola (150 calories), totaling 1590. The total calorie of a day is 2035 calories, which is more than a normal man needs in a day. Other foods that we eat more will turn into fat and accumulate in our bodies.
If you think that the calories of western food are too high, you can also look at the calories of Chinese food, including white rice 140g 2 10 calories, curry rice 640 calories, assorted fried rice 800 calories, beef noodles 540 calories, ribs rice 480 calories, pork 100g, and pork 15 calories. A bowl of assorted fried rice and five skewers of mutton can meet the daily calorie demand of men.
In modern society, China people are facing the problem of overnutrition rather than undernutrition. The calorie intake should be based on the total intake of one day. There is no scientific problem in eating more or less at that meal. If you are happy, you can only eat one meal a day and get enough calories.
At first, human ancestors were mainly hunting and gathering, and the food source was not fixed, so it was impossible to preserve food. When there is more food, they eat more and eat less, and any other living thing on the earth keeps this eating habit in its natural state.
Daily diet is also developed after human beings entered an agricultural society with stable food sources. In the early days, it was once or twice a day. After entering the industrialized society, the morning and afternoon work system is implemented, which is labor intensive and the heat provided by poor food is limited. In order to supplement calories, three meals a day were gradually developed.
In today's society, food is extremely rich, and you can choose all kinds of nutritious meat, cereals, vegetables and fruits every day. One or two meals are enough for our daily intake of calories.
One or two meals a day have the advantages of reducing calorie intake to keep healthy, saving time, reducing calorie emissions and saving social resources.