Many foods which are now commonplace in groceries first entered the market in the late 19th and early 20th centuries.
Efforts by early health pioneers such as Paul Bragg, Sylvester Graham, John Harvey Kellogg, George Ohsawa, Ellen White and others spurred an interest in health food. As early as the 1920s and 1930s health food stores started opening in the United States and the United Kingdom selling products such as blackstrap molasses and brewer's yeast.
