7 Up Zero Sugar: This diet soda was originally introduced in 1963 as Like[16][17] (not to be confused with 7 Up's Like Cola from the 1980s). However, it was discontinued in 1969 due to the U.S. government ban of cyclamate sweetener. After reformulation, it was reintroduced as Diet 7 Up in 1970.[18] It was renamed Sugar Free 7 Up in 1973 then back to Diet 7 Up in 1979.[19] Diet 7 Up was reformulated and advertised as being sweetened with Splenda (sucralose); the formula has been retooled and listed these ingredients: filtered carbonated water, natural flavors, citric acid, potassium citrate, potassium benzoate, aspartame, acesulfame potassium, calcium disodium EDTA.[20] The ingredients for Diet 7 Up with Splenda are: filtered carbonated water, natural flavors, citric acid, potassium citrate, potassium benzoate, calcium disodium EDTA, acesulfame potassium, sucralose.[21] The 7 Up Company claims they switched back to aspartame because they conducted a nationwide study showing that people preferred the taste with aspartame instead of with Splenda.