“Natural foods” and “all natural foods” are widely used terms in food labeling and marketing with a variety of definitions, most of which are vague. The term is often assumed to imply foods that are minimally processed and all of whose ingredients are natural products (in the chemist's sense of that term), but the lack of standards in most jurisdictions means that the term assures nothing. In some countries, the term “natural” is defined and enforced. In others, such as the United States, it has no meaning.