Elderly people often eat vegetarian food, which is good for their health

　　At present, nutrients that maintain human development, growth, and activity mainly fall into the following five categories:
　　
　　1. Albumin, also known as protein, is the main substance that makes up the human body and can also provide calories.
　　
　　2. Carbohydrates, including sugars and starches, mainly provide the calories required for human activities.
　　
　　3. Vitamins, including vitamins A, B, C, D, E, B12, etc., mainly participate in the physiological functions of the human body.
　　
　　4. Minerals, including potassium, sodium, calcium, iron, zinc, selenium, etc., also participate in the physiological functions of the human body.
　　
　　5. Fat, in addition to providing the calories required for human activities, is also an essential substance that constitutes the human body.
　　
　　Food is mainly summarized into three categories: meat, grains and vegetables and fruits. Generally speaking, the above five types of nutrients are present in various foods, but the content of various nutrients in various foods is different.
　　
　　Grain contains the highest carbohydrate content, accounting for about 70%, and protein content is close to 10%; meat contains the highest protein content, of which lean meat contains as much as 40%. Fat comes from plants such as soybeans and peanuts, and also from fatty meats. Vitamin A and vitamin C are most abundant in fresh vegetables and fruits, calcium is most abundant in milk, and B vitamins are more abundant in whole grains, but vitamin B12 is mainly found in the meat and internal organs of animals.
　　
　　Foods made of rice and noodles, as well as dishes cooked with meat, oil, vegetables, etc., are the basic forms of reasonably nutritious food for people.
　　
　　If the protein supply is abundant, the body will be strong and well-developed; if the protein supply is insufficient, the body will be weak and sickly. Carbohydrates and fat are the main raw materials for human body heat supply. The supply must be sufficient, otherwise it will not be able to maintain weight and work; too much, it will easily lead to obesity. Eating too little vegetables and fruits can lead to vitamin and mineral deficiencies. healthy Not good, easy to get sick. So a balanced diet is needed. Some people think that if a certain food is nutritious, they should eat it in large amounts and every day; others do not like a certain food and will never eat it. In the long run, an imbalance of nutrition in the body will be harmful to health.
　　
　　A better habit is to eat different foods frequently, eat everything, and not be picky about food. People have a habit of not wanting to eat things they eat continuously; they also want to eat things they haven't eaten for a long time. This helps maintain nutritional balance in the body.
　　
　　A vegetarian diet means eating a diet that does not contain animal-based foods. Except for animal protein, other nutrients in vegetarian food are basically complete. Therefore, a vegetarian diet can maintain the most basic life, growth, development, reproduction and activities of the human body.
　　
　　Plant proteins, including vegetables, fruits, grains, etc., are also important nutrients for humans. They are a source of protein for vegetarians and can also sustain life, but their effects are not as good as eating them with meat.
　　
　　According to current research by scientists, it cannot be proven that a vegetarian diet helps longevity, but it has been confirmed that a nutritionally balanced diet including animal protein is helpful to human health and longevity.
　　
　　Warm reminder: Longevity is actually a complex issue, including the body’s own genetic factors and environmental factors. Many factors such as air, water and soil, culture, education, science, economy, politics, interpersonal relationships, etc. in the environment are closely related to longevity. Nutrition is only part of the equation.