First of all, by analyzing the relationship between diet structure and way and chronic diseases, the importance of reasonable nutrition and balanced diet is expounded. Secondly, explain what a reasonable nutrition and balanced diet should follow. Finally, summarize the significance of reasonable nutrition and balanced diet.

Importance of rational nutrition and balanced diet

"Food is the most important thing for the people". Life must depend on food, and the function of food is to maintain life. The quality of human life forms is closely related to nutritious diet, and people's mental psychology is closely related to food. People's intelligence, physical strength, learning ability, sports ability, disease prevention ability, rehabilitation ability, reproductive ability, life expectancy, height and weight are inextricably linked with nutritious diet.