What are the meanings of "Wei Jian Zi", "Yao Zhun Zi" and "Shi Jian Zi" respectively?

The word "Wei Shi Jian" is a food health function approved by the health department and belongs to food. Literally speaking, health food is a health function. If you don't eat well, you won't go bad. Patients will not get better after eating, and healthy people will not get worse after eating.

National health food refers to health food approved by the state.

National medicine Zhunzi is the national drug approval number,

Drugs must be used to treat diseases, and health food can only be used for health care and cannot replace drugs.