1992 The United States Department of Agriculture launched the most widely known food pyramid.
The traditional diet classification divides the diet pyramid into four layers, the top layer contains oil, salt and sugar, and we eat the least every day; the second layer contains fish, meat, dairy products and beans; the third layer contains vegetables and fruits; the bottom layer mainly contains grains, including porridge, flour, noodles, rice and cereal, and we eat the most every day.
In 2005, the United States Department of Agriculture launched a revised version of the diet pyramid, in which all kinds of foods go straight from the bottom to the top, which means that all kinds of foods are equally important. The advice on intake is to adjust according to everyone's age and physical condition. This diet pyramid is more suitable for everyone. The new diet pyramid is composed of six hanging ribbons, which are thick and thin, the thickest of which is the root and stem of grains (orange), which means that the food intake should be the largest every day, followed by vegetables (green), fruits (red), oils (yellow), milk (blue) and eggs, beans and fish (purple). The little black man on the left climbs the stairs to show that he needs more exercise to achieve health. Everyone has different daily labor nature and different nutritional needs.
In 2005, the US Department of Agriculture launched a revised version of the diet pyramid-My Pyramid.
In 20 1 1, USDA introduced "My Dining Plate", which replaced my pyramid. This is also a guide to guide us to eat different kinds of food and their proper portions, but its pattern is not a pyramid shape.
On 20 1 1 year, USDA launched "My Dish".
In 2002, Dr. Wiley of Harvard University School of Public Health and his colleagues designed a new set of healthy eating guidelines: Healthy Eating Pyramid. They pointed out that the new dietary pattern can prevent long-term diseases (including cardiovascular diseases and cancer) more than the dietary pyramid published by the US Department of Agriculture in 1992.
Harvard University Healthy Eating Pyramid
The traditional food pyramid does not distinguish different fats or meats, but in recent years, a lot of evidence shows that some fats and meats are healthy, and the food pyramid also advises people to eat a lot of carbohydrates. Some scientists have pointed out that these foods are the real killers of obesity.
Dr. Wiley pointed out that if we can follow the new dietary advice, maintain the ideal weight and exercise moderately every day, we can effectively reduce the chances of suffering from long-term diseases.
The recommendations of the healthy eating pyramid are to reduce the consumption of red meat, potatoes and refined cereals such as white bread; Eat only 1 to 2 times of milk and dairy food every day; Reducing the consumption of saturated fat should be replaced by unsaturated fat such as vegetable oil; Eat more whole grains, vegetables and fruits; Take vitamin supplements every day; Drink alcoholic drinks in moderation; Maintain an ideal weight and do moderate exercise every day.