What are the differences between health food and medicine?

When purchasing health food, consumers should clarify the principle that health food can not be eaten as ordinary food, let alone used to treat diseases instead of drugs. The fundamental difference between health food and medicine is that health food can not be used to treat diseases, but only has health care function. Some manufacturers or individuals use illegal advertisements to exaggerate publicity, known as "cure all diseases". Citizens must not be deceived by illegal false publicity. If they are ill, they should go to the hospital in time to avoid delaying normal treatment. The beginning of the drug approval number is "national drug approval", and the beginning of the approval number of health food is "national food health" or "x health food health". Citizens must see the "approval number" clearly when buying. Never buy products without an approval number to avoid being deceived.