One is the qualification certificate established by domestic government departments, including the professional qualification certificate of public dietitian of the Ministry of Labor and Social Security and the nutritionist certificate of the Ministry of Health;

One is the certificate issued by social organizations and institutions, including the nutritionist qualification certificate issued by China Nutrition Society, the National Talent Flow Center of the Ministry of Personnel and the nutritionist issued by china health care association.

One is the international registered dietitian certificate issued by the International Dietitian Association.

Comparatively speaking, the Professional Qualification Certificate for Public Dietitians issued by the Ministry of Labor and Social Security is more authoritative and applicable, and will be recognized by various government departments and localities to facilitate students' employment. Because it is one of the fourth batch of new occupations issued by the Ministry of Labor, it is a professional and skilled talent produced in response to social and market needs. It refers to receiving professional knowledge and skills training, passing the national vocational qualification examination certification, obtaining professional qualifications (Article 6 of Document No.98 of the Ministry of Labor [1994] stipulates that "the Ministry of Labor is responsible for issuing and managing skilled vocational qualification certificates"), and engaging in nutrition consultation, nutrition evaluation, nutrition guidance and nutrition management.

This must be the most authoritative award awarded by Ministry of Human Resources and Social Security, China.