Harvard Pyramid for Healthy Eating
In the Harvard Pyramid, healthy food is concentrated downward. The narrow upper section is for foods that should only be eaten sparingly, if at all (see Figure 1). Harvard nutritionists point out that we now know that most fats from plants and fish (unsaturated fats) are good for us, while those from animal sources (saturated fats) and many processed foods (trans fats) are unhealthy. So the sources of these different types of fats are enumerated separately on the pyramid according to their health benefits: healthy fats near the base, unhealthy fats at the top of the head.
Figure 1: Harvard Pyramid for Healthy Eating
The wide bottom section features the components that are most important. At the top are foods that are eaten only sparingly, of its origin. Start at the base with daily exercise and weight control. The next step includes the most healthy foods: vegetables and fruits, healthy fats and oils, and whole grains. These should form the bulk of your diet. Flashing your way up to the top of the pyramid at the top, you'll find foods like red meat, butter, eggs and starches that must be eaten sparingly originally ..
Look at the healthy food pyramid and you'll see that the bulk and the founder, consists of daily exercise and weight control. Although good nutritional choices lead to better health of overweight and obese people, to be truly healthy it is important to maintain normal weight and maintain physical activity. Physical activity and weight control help prevent many serious diseases.
The next level includes foods that contain good fats and carbohydrates. This level tells you that the most important foods to eat are fruits and vegetables, whole grain foods (good carbohydrates), and vegetable oils (good fats).
Later come nuts, seeds and legumes. A healthy eating pyramid puts nuts and pulses into its own category rather than placing them within some patterns of meat and fish to form one class of 'protein.' This reflects the results that some protein forms are healthier than others. Fish, poultry, and eggs are in the same category. The following are dairy products. At the very top there are foods you should eat less often: refined carbohydrates, sweets (bad carbohydrates), red meat (especially processed meats) and harmful fats, including saturated fats from animal products such as butter and trans fats found in many processed foods.
In doing research on the pyramid of healthy eating, Harvard scientists studied the diet of more than 100,000 male nurses and health workers who participated in two long-term studies. The researchers found that men who followed closely the pyramid of healthy eating decreased their risk of major illnesses by 20% over 8 to 12 years, compared with men whose diets relied on the lowest healthy diet recommendations. Women in the study who followed the healthy eating pyramid generally reduced the risk by 11% compared to those who committed less. Major achievements came with cardiovascular disease. A healthy diet and lifestyle reduced the risk of heart attack even in people who were taking medications for high cholesterol or high blood pressure, and good nutrition was found to have its own benefits independently of medications.
Healthy eating pyramid is not built in stone. As nutrition researchers attend more information over time, it will change to reflect important new evidence.
‹
Principles of dietary guidance
For example, the US government requests a committee to review the latest nutrition science and create recommendations for the public. The 2011 guidelines from the US Department of Agriculture and the Department of Human Services emphasize the importance of weight control. In previous years the guidelines focused on nutrients: What is the percentage of fat, proteins, carbohydrates optimal for health? Or, what amounts of different vitamins and minerals you need to avoid injury and prevent disease?
The motto of the outline was: People should seek to maintain a calorie balance and eat more calories than is burned every day. If you are obese, the goal is to consume fewer calories than you burn every day in order to reach a healthy weight. Calorie control and daily physical activity are the cornerstones of the guidelines.
Why focus on weight control? The report explains the dietary guidelines, so this way: 'Malnutrition and lack of physical activity are the most important factors contributing to the obesity problem affecting men, women, children in all sectors of our society, and even the poor are overweight. Physical activity with the leading causes of morbidity and mortality in the United States. 'With this in mind, dietary guidelines include these dietary recommendations to reduce and increase foods: