Controversies over preservatives were very important in the early days of the FDA, where volunteers participated in experimental meals with high doses of the chemicals to determine their toxicity.

Levels of undesirable food additives, such as methyl mercury in canned tuna, are the responsibility of the FDA.

The FDA's mission to be the shield of consumers against dangerous and harmful Food, Drug, or Cosmetic products.

The power to enforce the Acts and Regulations is then delegated from the FDA to the CFSAN as well as the other 5 product oriented centers.

[6] In 1992 the organization evaluated its structure and concluded that its 20-year-old configuration was insufficient to provide proper service in current times.

[6] The Center for Food Safety and Applied Nutrition has over 800 employees with a wide range of job titles.

From secretary to molecular chemist, the Center has an extensive staff that covers every possible aspect of food and nutrition science.

CFSAN's mission statement reads "CFSAN, in conjunction with the Agency's field staff, is responsible for promoting and protecting the public's health by ensuring that the nation's food supply is safe, sanitary, wholesome, and honestly labeled, and that cosmetic products are safe and properly labeled.

Here is an abbreviated list from the linked page that highlights the most important and influential actions regulation created by the FDA.

CFSAN publishes the "Bad Bug Book", which provides information about the microorganisms that cause foodborne illness.

The Joint Institute for Food Safety and Applied Nutrition (JIFSAN) is a partnership between the FDA (specifically, the CFSAN and Center for Veterinary Medicine (CVM)) and the University of Maryland.