What are the health benefits of proper dieting for the elderly?

　　Dieting can reduce the burden on the gastrointestinal tract. Frequent overeating can overload the digestive system for a long time, leading to premature aging of internal organs and decreased immune function. In addition, excess calories can also cause fat deposition in the body and cause "rich diseases", such as coronary heart disease , diabetes, etc. Dieting can reduce the burden on the gastrointestinal tract. Frequent overeating can overload the digestive system for a long time, leading to premature aging of internal organs and reduced immune function. Excess calories can also cause fat deposition in the body and lead to "diseases of wealth" such as coronary heart disease and diabetes.

　　Dieting can reduce the burden on the gastrointestinal tract. Frequent overeating can overload the digestive system for a long time, leading to premature aging of internal organs and reduced immune function. Excess calories can also cause fat deposition in the body and lead to "diseases of wealth" such as coronary heart disease and diabetes.

　　According to surveys, one of the experiences of many long-lived elderly people is to eat only seven to eight times full. Some ancient medical works also discussed that moderate diet can resist aging and prolong life. This rule has been confirmed by many modern scientists through animal experiments. Why can dieting lead to longevity? Scientists analyze the following reasons.

　　Dieting can reduce the burden on the gastrointestinal tract. Frequent overeating can overload the digestive system for a long time, leading to premature aging of internal organs and reduced immune function. Excess calories can also cause fat deposition in the body and lead to "diseases of wealth" such as coronary heart disease and diabetes.

　　Saturation causes brain metabolism disorders. Scientific research has proven that when a person is full, there is a substance in the brain that is tens of thousands of times greater than before eating. It is the excessive increase in this growth factor that leads to cerebral arteriosclerosis, and cerebral arteriosclerosis is closely related to Alzheimer's disease, leading to life aging. The study also found that there is a specific gene in animals. When the food calorie supply is low, the protein encoded by this gene will increase, which can prevent cell apoptosis. Scientists believe that this may be an important factor in dieting to delay aging.

　　It can be seen that dieting is beneficial to healthy Longevity is of great significance, so how should middle-aged and elderly friends diet appropriately? First of all, we must develop good living habits. The daily salt intake should not exceed 6 grams. ； The main edible oil is vegetable oil, 25 to 30 grams per day is appropriate. Eat less animal oil and butter. The ratio of vegetable oil to animal oil is 1:0.5 ； Eat different types of fresh vegetables and fruits every day, with an intake of at least 400 grams ； 100 grams of poultry, fish and meat per day is enough ； Eat less animal offal, cereals as the main food, and don’t eat too much at each meal, preferably 80% full. Secondly, if you occasionally overeat, you must do the necessary exercise half an hour after eating to burn off excess calories. Finally, everyone needs to be reminded that the purpose of dieting is to maintain a low nutritional level, but it is by no means a lack of nutrients. Therefore, dieting must be carried out on the basis of ensuring nutritional supply.