What's the difference between a nutritionist and a health manager?

The public dietitian certificate you mentioned was cancelled on February 20 16. 16. There is no exam now, and the certificate has been suspended. Instead, it is a health manager, awarded by the National Health Planning Commission, with high gold content, which we can simply understand as an upgraded version of dietitian.

At present, health managers, like doctors' Yamatonokusushi certificates, are also certified by the Health and Wellness Committee, and tend to intervene and monitor health and nutrition. They are a combination of nutritionists, psychological counselors, physical examination doctors, preventive medicine doctors, health education experts and medical information managers.