Yes, you need to provide proof of work to apply for a food health certificate. Specifically, you need to provide proof of employment, which needs to be stamped with official seal and printed by computer. Handwriting or copying is not allowed.

In addition, to apply for a food health certificate, you need to prepare other materials, such as an ID card and two recent one-inch color photos of individuals bareheaded. It usually takes 3-4 working days to apply for a health certificate. As for the cost, the reference price is 53 yuan/person, but please note that the specific cost may vary due to regional and policy factors.

At the same time, those who suffer from digestive tract infectious diseases such as dysentery, typhoid fever and viral hepatitis (except pathogen carriers), active tuberculosis, suppurative or exudative skin diseases and other diseases that hinder food hygiene and public health may not engage in direct contact with imported food or directly serve customers before they are cured.

For the above information, if you need to know more, it is recommended to directly refer to official information or consult local certification bodies.