First, what is nutrition?
"Camp" means seeking, and "keeping" means keeping in good health. "Nutrition" refers to the process that the human body ingests food for the needs of life and health, and uses the nutrients in food to build the human body, maintain growth and life activities, prevent diseases and protect health.
Second, what are nutrients?
The substances that the human body ingests from food that are beneficial to the human body are called nutrients (nearly 100 kinds).
People depend on nutrition for survival, health and longevity, reproduction, youth and beauty, resistance to various pressures, prevention and treatment of diseases. Nothing in the world is more important than nutrition, because it concerns everyone's health and life.
Some nutrients cannot be synthesized in the body and must be obtained from food, which is called "essential nutrients"; There are also some nutrients that can be transformed from other nutrients in the body, or are not needed by the human body, which are called "non-essential nutrients".
1. What are the essential nutrients?
The essential nutrients for human body announced by China Nutrition Society are: protein (9 kinds of isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, valine and histidine), lipids (2 kinds of linoleic acid and linolenic acid), sugar, water, vitamins (VA, B 1, B2, pantothenic acid, nicotinic acid, B6, B/).
The characteristics of this kind of nutrients are: the human body must eat, and not eating or eating less of any of them will lead to people's inability to survive, illness and even death.
These nutrients are the core substances of human life activities, growth and development, health and longevity, youth and beauty, reproduction, anti-stress, disease prevention and rehabilitation.
2. What are non-essential nutrients?
Non-essential nutrients for human body include cellulose, lutein, proanthocyanidins, lycopene, anthocyanins, soybean isoflavones, glucosamine, phytosterols, phytosterol esters, cysteine, tyrosine, arginine, aspartic acid, asparagine, glutamic acid, glutamyl acid, glycine, proline, serine, cystine, alanine, saturated fatty acids, oleic acid, arachidonic acid and cordyceps acid. The characteristic of this nutrient is that the human body will not get sick or even die if it doesn't eat or eat less of any of them, but after you eat it, it will be beneficial and will have the icing on the cake effect.
Some of these nutrients have the function of preserving essential nutrients, while others have special health care functions. They have a very positive effect on people's life activities, growth and development, health and longevity, youth and beauty, reproduction, anti-stress, disease prevention and disease rehabilitation.
Third, what is nutrition?
The knowledge of studying the relationship and function between human body and nutrients and guiding people's healthy life is called nutrition.
Nutrition is a science that focuses on the study of human life activities, growth and development, health and longevity, nutrition and beauty, nutrition and weight loss, prenatal and postnatal care, food safety, food nutrition, healthy nutrition, disease nutrition, disease prevention and disease rehabilitation, supplemented by health education, health assessment, health management and guidance for people's healthy life.
What is great health?
Combining the strengths of traditional Chinese medicine, western medicine, nutrition and physical therapy and making up their shortcomings is called great health.
The core of promoting great health is to broaden your horizons. According to the advantages of traditional Chinese medicine, western medicine, nutrition and physical therapy, it is recognized that there is no food that can meet the needs of human body, no medicine that can treat all diseases and no medical method that can solve all health problems in the world. Don't be superstitious, don't blindly worship the past, don't blindly worship foreigners, and seek the most suitable health method according to the needs of your health.