Especially in some wealthy families, cereals are eaten less, and big fish and meat are upgraded to staple food; The other man-made pursuit of slim figure reduces staple food again and again, resulting in unbalanced nutrition and dysfunction and disorder of various systems of the body.
China people's eating habits have always been clearly defined: staple food is the main food, supplemented by non-staple food.
What to eat is a long-term problem of eating habits, not to say that it can be changed. According to the research of biological experts, the adaptability and repulsion of human beings to food are influenced by genes. China people's stomachs are suitable for plant foods. They eat more grains such as rice and noodles instead of meat. Western whites mainly eat animal food, and eat more meat than plant food. There are habit problems as well as physiological and genetic differences. For example, 70% of China people are intolerant of lactose in milk, while the proportion of Caucasians is less than 20%, so there is nothing they can do.
Therefore, experts remind that the staple food should not be eaten too little. The three major sources of human energy are carbohydrate, fat and protein. The scientific ratio should be no less than 55% for carbohydrate and no more than 30% for fat, and about 15% for protein. The China Residents' Balanced Diet Pagoda, formulated by the Nutrition Society of China, advocates food diversification, with cereals as the bottom of the pagoda (the most needed food), and suggests that adults should eat 300-500 grams of staple food every day. The intake of staple food should not be lower than the bottom line.
Generally speaking, the staple food and non-staple food for three meals a day should be matched in thickness, and animal food and plant food should have a certain proportion. It is best to eat some beans, potatoes and fresh vegetables every day. The scientific distribution of three meals a day is determined according to everyone's physiological condition and work needs. According to the amount of food, the ratio of breakfast, lunch and dinner is 3: 4: 3. If someone eats 500 grams of staple food every day, it is more appropriate to eat 150 grams in the morning and evening, and 200 grams at noon.