Skip to content

Diet Rite

Diet Rite was an American brand of no-calorie soft drinks known for its long-running diet cola and successive changes in sweetener technology.

Last updated August 22, 2026

AI crawler reads

No AI crawler has read this profile since Oct 28, 2026.

Overview

Diet Rite was a United States soft-drink brand originally distributed by the RC Cola company. It began in 1954 as a dietetic beverage, placing it among the early commercial products designed specifically for consumers seeking a reduced-calorie alternative to conventional soda. The brand initially used a combination of cyclamate and saccharin and was positioned primarily as a health-oriented product rather than as an ordinary soft drink for the mass market. A major change came in 1962, when Diet Rite was launched nationwide and promoted to the general public. This broadened its role from a specialist dietetic product to a mainstream soft-drink brand. Its marketing emphasized taste and weight-conscious consumption, including a television jingle performed by The Paris Sisters in the early 1960s. The campaign included the line “Stay thin with the best-tasting cola of all!”, reflecting the period’s close association between diet beverages, thinness, and health. The formulation changed substantially in response to regulatory and consumer developments. After cyclamate was banned in the United States in 1969, it was removed from the recipe. Aspartame, marketed under the NutraSweet brand, was subsequently added after becoming available. In 1987, Diet Rite eliminated saccharin entirely and also removed caffeine, reinforcing its caffeine-free, no-calorie positioning. During the 1990s, the brand expanded beyond cola through fruit-flavored varieties, including red raspberry, white grape, tangerine, and black cherry expressions. In 2000, Diet Rite was reformulated again. The new formula replaced aspartame with Splenda-brand sucralose and Sunett-brand acesulfame potassium. This made Diet Rite the first major diet soda in the United States described as using neither aspartame nor saccharin. The change differentiated the brand in an increasingly competitive diet-soda market, where sweetener choice had become an important part of consumer perception and product positioning. The product name was extended to “Diet Rite Pure Zero” in 2005. A cherry cola flavor followed in 2006, complementing the existing cola and fruit-flavored range. The portfolio included a caffeine-free Pure Zero Cola as well as red raspberry, white grape, tangerine, black cherry, and cherry cola variants. These products combined the brand’s original diet-soda identity with a broader flavor strategy. Diet Rite remained associated with Keurig Dr Pepper after the consolidation of the beverage businesses that had historically included RC Cola distribution. The line was discontinued in late 2024. As a result, Diet Rite is now a defunct soft-drink brand, although its history remains notable for its early entry into diet beverages, repeated reformulations driven by sweetener regulation and consumer preferences, and long-term effort to distinguish itself from larger diet-cola competitors.

History

Diet Rite originated in 1954 as a dietetic soft drink distributed by the RC Cola company. Its initial formula combined cyclamate and saccharin, two sweeteners used in early reduced-calorie beverages. At first, the product was presented primarily for consumers seeking a dietetic or health-oriented drink rather than as a fully mainstream alternative to regular soda. The brand’s distribution and positioning changed in 1962, when it was introduced nationwide and marketed to the general public. This expansion helped establish Diet Rite as a recognizable diet-soft-drink brand during a period when calorie-conscious products were becoming more visible in American consumer culture. Advertising connected the beverage with taste, weight control, and an aspirational health image. One early television commercial used a jingle performed by The Paris Sisters and included the line “Stay thin with the best-tasting cola of all!” Regulatory changes shaped the brand’s development. Following the United States ban on cyclamate in 1969, Diet Rite removed that sweetener from its formula. Aspartame was later introduced into the product after its arrival in the marketplace. In 1987, the brand eliminated saccharin altogether and also removed caffeine, strengthening its identity as a caffeine-free diet soda. The company subsequently broadened the range with fruit flavors during the 1990s, moving beyond the traditional diet-cola format. A particularly important reformulation occurred in 2000. Diet Rite replaced aspartame with sucralose sold under the Splenda brand and acesulfame potassium sold under the Sunett brand. The resulting product was described as the first major diet soda in the United States to use neither aspartame nor saccharin. This formulation gave Diet Rite a distinctive point of difference at a time when consumers and the beverage industry were paying increasing attention to artificial sweeteners and ingredient preferences. In 2005, the product line adopted the “Pure Zero” name extension. The following year, Diet Rite added a cherry cola flavor. Its later range included Pure Zero Cola, red raspberry, white grape, tangerine, black cherry, and cherry cola. These offerings preserved the brand’s no-calorie and caffeine-free orientation while providing alternatives to standard cola. Diet Rite was historically linked to RC Cola distribution and later remained under the ownership of Keurig Dr Pepper. The brand was discontinued in late 2024. Its history illustrates the evolution of the American diet-soda category: from early dietetic formulations, through regulatory-driven sweetener substitutions, to modern zero-calorie products marketed on the basis of flavor variety and ingredient differentiation.

  • 2024

    Brand discontinued

    [1]

    The Diet Rite line was discontinued in late 2024 while remaining owned by Keurig Dr Pepper.

  • 2006

    Cherry cola flavor introduced

    [1]

    Diet Rite expanded its flavor lineup with a cherry cola variant.

  • 2005

    Pure Zero name introduced

    [1]

    The line added “Pure Zero” to its name, emphasizing its no-calorie positioning.

  • 2000

    Aspartame replaced with sucralose and acesulfame potassium

    [1]

    The brand adopted Splenda-brand sucralose and Sunett-brand acesulfame potassium, becoming the first major United States diet soda described as using neither aspartame nor saccharin.

  • 1987

    Saccharin and caffeine eliminated

    [1]

    Diet Rite eliminated saccharin and removed caffeine from the product, continuing its reformulation around alternative sweeteners and a caffeine-free profile.

  • 1969

    Cyclamate removed

    [1]

    Cyclamate was removed from the formula after the sweetener was banned in the United States.

  • 1962

    Nationwide launch and broader consumer positioning

    [1]

    The brand was introduced nationwide and marketed to the general public as a health-oriented beverage rather than only as a specialist dietetic product.

  • 1954

    Diet Rite introduced

    [1]

    Diet Rite debuted as a dietetic soft drink distributed by the RC Cola company.

Products and positioning

A no-calorie, caffeine-free soft-drink brand positioned around diet-conscious consumption, alternative sweetener technology, and cola and fruit flavors.

  • Diet cola

    Diet Rite Pure Zero Cola

    The core Diet Rite cola product, positioned as a no-calorie and caffeine-free alternative to conventional cola. It represented the central expression of the brand’s long-running diet-soft-drink identity.

  • Fruit-flavored soft drink

    Diet Rite Pure Zero Red Raspberry

    A red raspberry-flavored zero-calorie soft drink that extended the brand beyond cola. It was described as one of the more popular fruit-oriented expressions in the Diet Rite range.

  • Fruit-flavored soft drink

    Diet Rite Pure Zero White Grape

    A light fruit-flavored variation based on white grape. It formed part of Diet Rite’s broader 1990s-era expansion into non-cola flavors.

  • Citrus soft drink

    Diet Rite Pure Zero Tangerine

    A bright citrus-flavored, no-calorie soft drink offered as an alternative to Diet Rite’s cola and berry-oriented products.

  • Fruit-flavored soft drink

    Diet Rite Pure Zero Black Cherry

    A deep cherry-flavored zero-calorie soda that broadened the range of fruit choices available under the Diet Rite Pure Zero name.

  • Flavored cola · 2006

    Diet Rite Pure Zero Cherry Cola

    A cola variant combining the brand’s classic cola profile with cherry flavor. It was introduced in 2006 as a later addition to the Diet Rite portfolio.

Marketing campaigns

  • 1960Stay thin with the best-tasting cola of all!

    United States

    An early Diet Rite television commercial used a jingle performed by The Paris Sisters. Its message linked the product’s taste with weight-conscious consumption and reflected the brand’s health-oriented advertising at the time.

Brand decisions

  • 2024

    Discontinue the Diet Rite lineOther

    Background

    After decades of reformulation and flavor extensions, the Diet Rite product line remained owned by Keurig Dr Pepper.

    Action taken

    The brand was discontinued in late 2024.

    Aftermath

    Diet Rite became a defunct soft-drink brand.

  • 2005

    Adopt the Pure Zero nameStrategy

    Background

    The brand continued emphasizing its calorie-free product identity.

    Action taken

    Diet Rite added “Pure Zero” to the product-line name.

    Aftermath

    The revised naming reinforced the line’s zero-calorie positioning across its cola and fruit flavors.

  • 2000

    Reformulate without aspartame or saccharinGeneration change

    Background

    Diet Rite sought to differentiate its diet soda through an alternative sweetener system.

    Action taken

    The brand replaced aspartame with Splenda-brand sucralose and Sunett-brand acesulfame potassium.

    Aftermath

    Diet Rite became the first major United States diet soda described as using neither aspartame nor saccharin.

  • 1969

    Remove cyclamate following the United States banStrategy

    Background

    Diet Rite’s original formula used cyclamate, but the sweetener was banned in the United States.

    Action taken

    The brand removed cyclamate from its formulation and continued developing the product around other sweeteners.

    Aftermath

    The change began a series of major formula revisions driven by regulation and changing consumer expectations.

Sources1 sources

Cite this profile: Cite the canonical profile. /brand-wiki/diet-rite · Editorial policy · How profiles are compiled