1. Avoid obesity. Some old people have gained weight obviously. Being overweight is not good for health, which can lead to hypertension, coronary heart disease and diabetes. The causes of obesity are related to eating more, eating more sugar, eating more oil and taking less exercise. The intake of heat energy in the diet is more than the consumption of heat energy, and the rest will be converted into fat and accumulated in the body, forming a big belly. Animal fat is high in saturated fatty acids, which is easy to make people fat. Sugar is high in calories and easy to make people fat. Therefore, the elderly should eat less foods with high sugar content and less fat and animal oil, which is conducive to preventing obesity and reducing diseases.
2. Avoid calcium deficiency. The elderly are prone to osteoporosis, fractures and arthritis, which are related to calcium deficiency in the elderly. Therefore, the elderly should try to eat foods rich in calcium, phosphorus and vitamin D in their daily diet, which can prevent calcium deficiency, avoid and reduce the occurrence of osteoporosis and fractures.
3. Avoid iron deficiency. Old people eat less and are prone to iron deficiency. Iron deficiency will affect the production of human blood, which is not good for the body. Therefore, middle-aged and elderly people should eat more iron-rich foods, such as animal viscera, meat and other foods and increase the intake of vitamin C, which is conducive to preventing iron deficiency.
Middle-aged and elderly people can meet the above three requirements, which is conducive to physical fitness and less illness.