A health food store is a type of grocery store that primarily sells health food, organic food, local products, and often nutritional supplements. Sawall, Paul Bragg, Sylvester Graham, John Harvey Kellogg, George Ohsawa, Ellen White and others sparked interest in healthy food. Thomas Martindale founded one of the first health food stores in 1869 as the Thomas Martindale Company in Oil City, Pennsylvania. The term healthy food has been used since the 1920s to refer to specific foods that are said to be especially beneficial to health, although the term has no official definition.
Most health food stores also sell dietary supplements, such as vitamins, herbal supplements, and homeopathic remedies. Sawall, a biochemist, was described as the best health teacher in the United States and a nationally known nutritionist in newspapers in the United States. Some terms associated with healthy foods include macrobiotics, natural foods, organic foods and whole foods.