junk food is a derogatory term, used for any food that is perceived to be unhealthy and has low or poor nutritional value. Examples of junk food may include, but are not limited to hamburgers, candy, soda and salty foods like potato chips and French fries. A diet rich in junk food is not conducive to maintaining a "balanced diet", as suggested by various government and non-profit health organizations. The term has been used by many different groups of fast food industries and environmentalists.