halo effect
n.— «Children in non-fluoridated communities consume sodas and beverages bottled in fluoridated localities using fluoridated water. This is known in fluoridation debate circles as “the halo effect.” Grapes and grape products, teas and processed chicken can be high in fluoride because of water used in processing and preparation.» —“Fluoride: Miracle drug or toxic-waste killer?” by redspyda Many Happy Returns Jan. 19, 2009. (source: Double-Tongued Dictionary)