Health food is food considered beneficial to health in ways that go beyond a normal healthy diet required for human nutrition.

According to the functions Health food can be divided into: nutritional supplement, antioxidant (health, longevity), weight loss, adjuvant therapy type and so on. Among them, the health function of the nutrient supplement is to supplement one or more essential nutrients to the human body. In short, regardless of the type of health food, are for the purpose of health, can not be quick, but need to take a long time to benefit people.

Health food can be divided into general food, green food, curative effect of food, food supplement, food for special purpose and functional food, etc..

Refers to the general food is in various food processing or primary processing food in daily life. Such as tomato juice, vegetable juice, yogurt and other daily health promotion, price cheap popular convenience food. ginseng, spirulina, honey, brown rice, milk, mushrooms, germ food and beverage natural health food.

Green food means no pesticide pollution of organic fruits and vegetables or wild food, this kind of fruits and vegetables from cultivation to harvest without any chemicals or additives.

Efficacy food is for the patient's symptomatic, such as low fat, low heat, low salt, low sugar foods, low cholesterol foods, fortified foods, diet foods, diabetes food and nutritional regulation of food and so on.

Daily supplements include food add some kinds of nutrition, or removing some inhibition of food nutrition factors, such as comprehensive vitamin pills, calcium, iron.

Foods for special purpose, such as people with cereal protein allergies, must eat the wheat protein, rice protein extracted from the special processed grains, in order to avoid the recurrence of the disease.

Functional foods can prevent or delay the onset of certain diseases, such as double fork lactobacillus beverage, low fat milk, slightly a daily health care food factors of symptomatic slow acting food. Health beverage, nutritional beverage, sports drinks, special reduction food, quick acting food etc.

China has the legislation for Health food, only those who have been approved by the relevant state departments in order to sell food in the market.