Do I need an empty stomach to get a health certificate?

No need. Physical examination items of health certificate do not include items that affect eating. Physical examination items of health certificate mainly include oral cavity, facial features, physical indicators, liver function, stool, chest X-ray, etc. It has little effect on diet and does not need an empty stomach. Health certificate refers to the proof of preventive health examination, which proves that the examinee has the health quality to engage in the prescribed business.