In 1994 the United States Congress passed the Dietary Supplement Health and Education Act, listing vitamins, minerals, medicinal herbs and amino acids within the scope of this category. Ever since then, although the makers of these kinds of health foods have been required to provide the FDA with safety information, presale testing has not been mandated. The door has actually been opened wider than ever.
一九九四年美國國會通過「膳食補充品健康與教育法」，把維生素、礦物質、生草藥及氨基酸列入此項範圍，從此這類健康食品雖然要向 FDA 提供安全資料，卻不需經過審核即可上市，門戶反而更寬鬆。