A reasonable diet is directly related to people's health and life. The influence of diet on people's health and life can be divided into four aspects: ① Insufficient diet can not meet the needs of the body, and malnutrition may occur. ② Overeating leads to overnutrition, which can lead to obesity. ③ Unreasonable diet can cause partial nutritional deficiency. 4 unclean and improper diet can lead to the direct invasion of pathogenic factors and the occurrence of diseases.

Although eating is an instinctive behavior of human beings, not everyone drinks reasonably and eats scientifically. Therefore, if you want to live a long and healthy life, you must seriously study the method and knowledge of eating.

(1) Reasonable diet: With the continuous improvement of living standards, people are more and more concerned about what kind of food to eat and how to eat scientifically and nutritionally. Scientific nutrition is an adequate and balanced diet, which ensures all the nutrients needed by the human body, and the proportion between nutrients is appropriate, which is beneficial to health. For people, following the principle of reasonable dietary nutrition is the basis of scientific nutrition.

(2) Rational deployment: pay attention to the diversification of staple food, and mix coarse grains with flour and rice. Non-staple food should pay attention to the mutual collocation of meat and vegetarian food, and try to avoid the repeated collocation of the same kind of food. Nutritionists recommend the following five groups of foods: ① grains; ② Meat and eggs; ③ Dairy products; ④ beans and bean products; 5 vegetables and fruits; (5) salt, oil and other condiments and drinks.