Health managers tend to prevent and manage diseases, and are professionals engaged in the detection, analysis and evaluation of individual and group health, as well as health consultation, guidance and risk factor intervention. The nutritionist's main job is to complete the daily nutrition consultation and catering work under the guidance of the dean. Health managers are more comprehensive, complex and professional than nutritionists.

A dietitian refers to a practitioner with professional knowledge and skills in nutrition and dietary nutrition. Nutritionists can use the knowledge of nutrition science to independently engage in diet management, nutrition support and treatment, nutrition consultation and guidance for individuals or groups under health or disease conditions.

Health manager is a professional who is engaged in monitoring, analysis, evaluation, health maintenance and health promotion of people or individuals. Health managers analyze and evaluate people's health status as a whole, and carry out health management from four aspects: nutrition, exercise, psychology and health preservation.

Nutritionists focus on individual nutrition intervention and nutrition treatment, while health managers are comprehensive, including the assessment and monitoring of individual physical and mental health, covering nutrition, psychology, exercise, health care and other aspects of knowledge. It can be said that a health manager is a combination of nutritionists and psychologists.