When it comes to citrus-flavored sodas, Mountain Dew and Mello Yello are two of the most popular contenders in the market. Both beverages offer a unique taste experience and have loyal fan bases. In this showdown, we’ll explore the differences in flavor, ingredients, and branding to determine which soda comes out on top.
A Quick History
Mountain Dew:
Mountain Dew was introduced in 1940 in Tennessee, USA, by Barney and Ally Hartman, originally crafted as a whiskey mixer. In 1964, PepsiCo acquired the brand and transformed it into a popular soda choice. Over the decades, Mountain Dew evolved into a youth-focused brand, closely associated with extreme sports, gaming, and high-energy lifestyles.
Mello Yello:
Mello Yello was introduced in 1979 by the Coca-Cola Company as a direct competitor to Mountain Dew in the citrus soda category. It was promoted heavily in motorsports and Southern markets, aiming to capture the enthusiasm surrounding Mountain Dew’s popularity. By tapping into these niche markets, Coca-Cola sought to carve out its own loyal customer base for Mello Yello.
In terms of historical presence and cultural impact, Mountain Dew undeniably holds the upper hand with its early entry into the market and strong associations with youth culture and extreme sports. Mello Yello, on the other hand, has carved out a niche for itself, especially in Southern markets and motorsports, offering a distinct appeal to its target audience. Ultimately, while Mountain Dew may have a broader cultural legacy, Mello Yello continues to attract those who appreciate its unique positioning and flavor.
Flavor and Taste
Mountain Dew:
Known for its citrusy, lemon-lime flavor with a bold punch of orange and a slightly sweeter finish, Mountain Dew offers a refreshing and invigorating taste. It’s very carbonated and tangy, delivering a highly caffeinated “kick” that appeals to those seeking an energy boost. This unique combination of flavors and sensations has helped Mountain Dew maintain its status as a favorite among soda enthusiasts.
Mello Yello:
Slightly smoother, sweeter, and less sharp compared to Mountain Dew, Mello Yello offers a more laid-back citrus experience. Many fans describe it as having a “mellower” flavor—hence the name—which is citrusy but not as biting, making it easier to sip. This softer taste profile appeals to those who prefer a gentler soda experience without sacrificing the refreshing qualities of a citrus drink.
Nutrition Comparison (per 12 fl oz / 355 ml can)
The nutritional content of Mountain Dew and Mello Yello is very similar, with some minor differences. Both sodas contain 170 calories, with no fat or protein content. However, official company data indicates slight variations in sodium, carbohydrates, and sugars.
Here is a corrected nutritional comparison based on current product labeling:
| Category | Mountain Dew | Mello Yello |
|---|---|---|
| Calories | 170 | 170 |
| Sodium | 65 mg | 45 mg |
| Total Carbohydrates | 46 g | 47 g |
| Total Sugars | 46 g | 47 g |
| Caffeine | 54 mg | 51 mg |
- Caffeine: Mountain Dew delivers a slightly higher caffeine kick (54 mg vs. 51 mg).
- Sodium: Mountain Dew has slightly more sodium (65 mg vs. 45 mg), which might contribute to its more pronounced, tangy taste.
- Carbohydrates and Sugars: Mello Yello contains slightly more carbohydrates and sugars (47 g vs. 46 g). For both sodas, almost all total carbohydrates are from sugars.
Ingredients
Mountain Dew (Classic):
- Carbonated water: The primary liquid base of the soda.
- High fructose corn syrup: The main sweetener used in the drink.
- Concentrated orange juice: Adds a small amount of citrus juice for flavor and color.
- Citric acid: Provides a tart, tangy flavor.
- Natural flavors: The specific flavoring blend is a closely guarded secret.
- Sodium benzoate: Used as a preservative to prevent the growth of bacteria and yeast.
- Caffeine: Provides the stimulating effect.
- Sodium citrate: Added to regulate acidity and add a salty flavor note.
- Erythorbic acid: An antioxidant used to preserve the drink’s freshness.
- Gum arabic: An emulsifier that provides a smoother mouthfeel and texture.
- Calcium disodium EDTA: A chelating agent used to protect the flavor and preserve the drink’s quality.
- Yellow 5: The artificial color that gives the soda its distinct green color.
Note on Brominated Vegetable Oil (BVO): The use of BVO in Mountain Dew has been discontinued in the United States since 2014 and is no longer an ingredient.
Mello Yello (Classic):
- Carbonated water: The base of the soda.
- High fructose corn syrup: Provides sweetness.
- Citric acid: Adds tartness.
- Natural flavors: A proprietary blend for its specific citrus flavor profile.
- Sodium benzoate and calcium disodium EDTA: Preservatives used to protect taste and freshness.
- Potassium citrate: Functions as an acidity regulator.
- Caffeine: The stimulant in the drink.
- Yellow 5: The artificial coloring.
- Carob bean gum: An emulsifier that affects the drink’s texture and mouthfeel.
Branding and Culture
Mountain Dew:
Mountain Dew has long been associated with extreme sports, gaming, and youth culture, and it has recently begun expanding its focus. Its former slogan, “Do the Dew,” captured the brand’s energetic and daring spirit, which was reflected in its partnerships with events like the X Games. The brand is known for offering a wide variety of flavors, including Code Red, Baja Blast, and Voltage, though flavor availability can vary by region. In 2025, a visual rebrand, including a new logo and packaging, is rolling out in the U.S. that emphasizes outdoor activities and nostalgia for its Appalachian roots, introducing the new character “The Mountain Dude”. While Mountain Dew is globally recognized, its recipe is sometimes adjusted for local regulations and availability varies.
Mello Yello:
Mello Yello maintains a dedicated following, particularly in the American South and Midwest, and in recent years, Coca-Cola has periodically expanded its reach into other regions. It has historically been involved in motorsports, particularly as a long-time sponsor of the NHRA, but underwent a rebrand in 2016 to project a more “audacious and powerful” image. While it has offered flavor extensions such as Mello Yello Cherry and Mello Yello Peach, its flavor lineup and market presence are generally more limited than Mountain Dew’s. In some years, availability may be limited based on demand.
Final Thoughts
At the end of the day, Mountain Dew vs. Mello Yello is a clash of two citrus soda icons, but their strategies and positioning continue to evolve. Mountain Dew retains a broader flavor variety and global recognition, though its brand focus has shifted from an individualistic “extreme” image to one of “energizing refreshment” and outdoor nostalgia. Mello Yello has historically had a more limited flavor and regional presence but has maintained a loyal fanbase and occasionally expanded its distribution. For those seeking an intense, bold citrus flavor, Mountain Dew is the choice, while Mello Yello delivers a smoother, mellower taste. Ultimately, the best choice depends on personal preference.