1, people's lives must be maintained by diet, and the quality of life and mental psychology have a great relationship with diet and nutrition. People's intelligence, physical strength, learning ability, sports ability, disease prevention ability, rehabilitation ability, reproductive ability, life expectancy, height and weight are also inextricably linked with nutritious diet. Unbalanced nutrient intake can cause many diseases. Therefore, reasonable nutrition and balanced diet are important measures to prevent diseases.
2. The relationship between reasonable nutrition and human health. Nutrition is a process in which organisms continuously absorb necessary substances from the outside to maintain their life activities. For people, nutrition is the whole process of ingesting food from the outside, digesting, absorbing and utilizing the substances needed by the human body in food to maintain life activities. These substances needed to maintain the normal growth, development and metabolism of the body are called nutrients.