The definition of food nutrition: It is the science that studies the process, needs and sources of nutrition and the relationship between nutrition and health. That is the science of studying the laws of human health and measures to improve them. It is a science that studies the relationship between food and human health.
Food nutrition is to scientifically determine the body's nutrient requirements based on the body's metabolic needs under different physiological and pathological conditions, formulate organizational principles for the rational utilization of nutrients, and guide the development of industrial and agricultural production, from Dietary nutrition ensures the needs of the human body.
The nutritional status of Chinese residents:
The nutritional and health status of Chinese residents in the past 10 years. According to the 2002 report by the Ministry of Health, the Ministry of Science and Technology, and the National Bureau of Statistics on "The Nutrition and Health of Chinese Residents" Health Status Survey". According to the survey results, the nutritional and health status of our residents has improved.
1. The dietary quality of Chinese residents has improved significantly. The energy and protein intake of urban and rural residents in my country are basically satisfied, the consumption of animal foods such as meat, poultry, and eggs has increased significantly, and the proportion of high-quality protein has increased. The per capita daily consumption of animal foods for urban and rural residents increased from 210g and 69g in 1992 to 248g and 126g respectively.
2. The development level of children and adolescents has steadily improved. The average birth weight of babies reaches 3309g, which has reached the level of developed countries. The average height of children and adolescents aged 3-18 in all age groups across the country has increased by 3.3cm compared with 1992. However, compared with urban areas, rural men are on average 4.9cm shorter and women are on average 4.2cm shorter.
3. The prevalence of malnutrition among children has dropped significantly. The growth retardation rate of children under 5 years old was 14.3, a decrease of 55% from 1992, with a decrease of 74% in urban areas and a decrease of 51% in rural areas. The underweight rate of children was 7.8, a decrease of 57% from 1992, with a decrease of 70% in urban areas and a decrease of 53% in rural areas.
4. The prevalence of anemia among residents has declined. The urban ratio dropped from 13.4 in 1992 to 10.6; urban females dropped from 23.3 to 17.0; rural males dropped from 15.4 to 12.9; rural females dropped from 20.8 to 18.8.
Contents of food nutrition research
1. Nutritional components of food and its testing.
2. The human body’s intake, digestion, absorption, metabolism and excretion of food.
3. The action mechanism of nutrients and the relationship between them.
4. Nutrition and dietary issues.
5. Nutrition and disease prevention.
6. The impact of food processing on nutrients.