I. Overview of Nutrition Labeling
Nutrition label is the most important part of prepackaged foods label, which mainly includes a tabular "table of nutrients", and on this basis, it is used to explain the level and function of nutrients.
Nutrient composition table is the core of nutrition label, and it is a normative table containing the name, content and percentage of food nutrients in nutrient reference values (NRV).
Second, the norms and standards of nutrition and nutritional components
Nutrition claim is a description and statement of the nutritional characteristics of food. Nutrition claim is a popular description of the content level of nutrients in a language that consumers can better understand after the content value in the nutrient composition table reaches certain requirements stipulated by China.
There is also a part of the nutrition label called "nutritional component function claim". The function claim of nutritional ingredients refers to the use of specific terms to explain that a nutritional ingredient can maintain the normal growth and development of human body and normal physiological functions.
Summary and function of food nutritional efficacy
First, the nutritional efficacy of food
The nutritional efficacy and function of food can be divided into providing energy, maintaining life activities, maintaining physiological functions and preventing diseases. Various foods have different nutritional components and functions. Common nutrients include carbohydrates, fats, protein, vitamins and minerals.
Second, the role
1, providing energy
Carbohydrate, fat and protein in food are the energy sources of human body, among which carbohydrate and fat are the main energy sources.
2. Life-sustaining activities
Protein is the foundation of human life activities, and participates in physiological processes such as tissue repair, cell renewal and enzyme synthesis.
3. Maintain physiological function
Vitamins and minerals play an important role in maintaining human physiological functions.
4. Disease prevention
A reasonable diet can help prevent some diseases, such as cardiovascular disease, diabetes, cancer and so on. Proper intake of balanced nutrients helps to enhance immunity and maintain good health.