In fact, nutrition is a science, which specializes in nutrition collocation, nutrition complementarity and nutrition balance. The main job of nutritionists is to study the relationship between nutrients in food and human functional requirements, that is, to guide people to "eat what, how and how much". According to the different research fields and contents, nutritionists can be divided into nutritionists who study children's nutrition, adolescents' nutrition and the elderly's nutrition, clinical nutritionists who study therapeutic diets and nutritionists who study ordinary diets of a wider population. In a word, a qualified dietitian should be a doctor, a nutritionist and a chef, not just a porridge cook.

A nutritionist must have keen thinking ability, strong thirst for knowledge, good organizational skills and enterprising spirit, excellent written and oral expression skills, and the ability to effectively coordinate with others.

Nutritionist (food) is a profession that uses scientific knowledge of human nutrition to help people understand the relationship between food and human health and decide the best recipe configuration in daily life.

The qualities that a nutritionist should possess: knowledge of food science; Explain nutrition; Assess people's nutritional needs; To provide suggestions on nutritional requirements and food collocation in public health or special fields such as sports and medicine; Improve nutrition services and manage related projects; Teach others basic professional knowledge; Engaged in research; Formulate nutrition exchange plans and standards, and build a nutrition exchange platform.

Nutritionists have a wide range of employment channels: medical nutritionists, mainly engaged in doctors, nursing, drug production and sales; Health nutritionist, mainly engaged in the production and sales of nutrition and health products (Amway, Perfect, etc. ); Hotel nutritionist, mainly engaged in the senior management of catering hotels, professional ordering chefs, senior executive chefs and chefs; Food nutritionist, mainly engaged in the production and sales of fast food and nutritional catering; Consulting dietitians mainly provide nutrition consulting services for communities, entrepreneurs, high-income families and occupational diseases.