Nutrition pyramid (also known as "food guide pyramid", "nutrition pyramid", "balanced diet pyramid", "food pyramid", "diet pyramid" and so on. ) is a golden triangle made by a person in the shape of a pyramid to cope with the physiological characteristics of the human body.
In order to guide people's rational nutrition, China Nutrition Society put forward a food guide, which is vividly called "4+ 1 nutrition pyramid" (namely "nutrition pyramid"). "4+ 1" means that the daily diet should include four kinds of foods: cereals, beans, vegetables, fruits, milk and dairy products, and poultry, meat, fish and eggs, and salt, oil and sugar should be added appropriately on the basis of these four kinds of foods.
The first layer of the "pyramid" is the most important cereal, which constitutes the foundation of the tower and should account for a large proportion in the diet. The intake of beans in each meal is 250-400g, and the ratio of grains to beans is 10: 1.
The second layer of the pyramid is vegetables and fruits, so it occupies a considerable position in the pyramid. The daily intake of vegetables and fruits is 250-450g, and the ratio of vegetables and fruits is 8: 1.
The third layer of the pyramid is milk and dairy products to supplement high-quality protein and calcium. The daily intake is 300 grams.
The fourth floor of the "pyramid" is animal food, which mainly provides protein, fat, B vitamins and inorganic salts. The daily intake of animal food such as poultry, meat, fish and eggs is 100-200g.
At the top of the "pyramid" is the right amount of oil, salt and sugar.
The above four basic components and the spire are superimposed together like a "pyramid".
Many people take diet pills, eat some fashionable diets, resolutely refuse to eat certain foods, eat certain foods and so on. With so many crazy dietary suggestions, how can you remember the basic principles of healthy eating? When it comes to nutrition and healthy diet, the food pyramid of USDA can provide you with a healthy diet framework and a good nutrition guide.
The food pyramid has not changed much over the years, but there have been some adjustments. The new food pyramid gives the concept of food group and healthy and nutritious food collocation: one of the changes is that the recommended intake of fruits and vegetables has increased slightly. Women should eat at least 7 servings of fruits and vegetables every day, while men need to eat at least 9 servings.