Health food is a term that has been used in the United States since the 1920s and refers to specific foods claimed to be especially beneficial to health.
In contrast to a regular healthy diet, proponents of health foods claim that particular foods have specific favorable effects on health. Examples of health foods include alfalfa sprouts, wheat germ and yogurt. Natural foods and organic food are related categories. Health foods are sold in health food stores or in the health/organic section of supermarkets.
The term is often used for foods that are low in fat and/or sugar, since overconsumption of fatty and sugary foods is seen as contributing to the obesity epidemic.