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Pepsi One
Pepsi One 2012 Logo.png
The official 2012 Pepsi One logo design.
Flavor: Cola with one calorie
Color: Brown      
Current Status: Discontinued
Locations Available: United States
Year(s) Available: October 1998 - Early 2015
Related Flavors: Pepsi
Diet Pepsi (Classic Sweetener Blend)
Diet Pepsi (Aspartame Free)
Pepsi Next
Caffeine-Free Pepsi
Pepsi Zero Sugar
Similar Flavors: N/A (No similar flavors to match with)
Related Promotions: N/A (No related promotions to match with)

Pepsi One was a Pepsi cola flavor that was released in October 1998 in the United States. It contains one calorie per eight-fluid ounce [230 ml] serving. It was marketed in the United States as an alternative cola to regular Pepsi and Diet Pepsi (Classic Sweetener Blend). In early 2015, Pepsi One alongside Pepsi Next was later discontinued.


Pepsi One was a variant of Pepsi which was brown in color, similar to Diet Pepsi (Classic Sweetener Blend). Its flavor was a Cola flavor with one calorie.


On June 30, 1998, the artificial sweetener acesulfame potassium (Ace-K) was approved for use by the Food and Drug Administration. PepsiCo responded within one hour, announcing the introduction of Pepsi One (which reached store shelves the following October). The original formulation was sweetened with aspartame and acesulfame potassium. This new variety was based upon an earlier product (sold in other countries) called Pepsi Max, but it featured a formula and flavor profile developed specifically for the U.S. market.

The launch of Pepsi One included an advertising campaign featuring the slogan "just one calorie." Subsequently, comedian Tom Green appeared as the spokesperson in a series of television advertisements that began airing in April 1999.

Before 2012, Pepsi One was the last Pepsi variant to include the old logo used from 2003 to 2008, while all the other Pepsi variants had been using the current logo used since late 2008; the only other Pepsi product not using the current logo was Pepsi Throwback, which intentionally used retro packaging. However, Pepsi One's logo was later modernized with the current logo to be in line with the other flavors.

On March 21, 2005, Pepsi-Cola North America announced that it would begin adding sucralose to a newly reformulated Pepsi ONE in order to create a full-flavor cola taste.

In January 2014, Consumer Reports magazine tested levels of the chemical 4-methylimidazole (4-MeI) -- a potential carcinogen -- in various beverages in the United States and found that Pepsi ONE was one of two drinks that contained the chemical in excess of 29 micrograms per can or bottle, with that being California Proposition 65's daily allowed amount for foods without a warning label.

In Early 2015, after its sister product Diet Pepsi had changed to using sucralose and Ace-K as sweeteners instead of aspartame, Pepsi One was discontinued.

PepsiCo wrote on its website that "Pepsi ONE has been discontinued. We regularly evaluate our product portfolio to find efficiencies, and we have decided to remove Pepsi ONE from the marketplace. Pepsi ONE has very limited distribution and will be out of the marketplace by start of the year 2015, and in some markets product inventory has already been exhausted."