Diet Mountain Dew (20 fl oz)

at KFC
20 fl. oz. · 10 cal · 0g protein
15 Poor
Seed oil free

How we scored it

The product contains high fructose corn syrup, which is heavily penalized due to its negative health impacts. Additionally, the beverage is highly processed, contributing to a low score despite the presence of caffeine as a beneficial ingredient.

Nutrition facts

Per 20 fl. oz.Amount% DV
Calories 10
Total fat 0g 0%
Saturated fat 0g 0%
Trans fat 0g
Cholesterol 0mg 0%
Sodium 90mg 4%
Total carbohydrate 1g 0%
Dietary fiber 0g 0%
Sugars 1g
Protein 0g 0%

KFC's published nutrition. Percentages are of the daily value on a 2,000-calorie diet.

Key ingredients

5
High Fructose Corn Syrup
Very Bad

High fructose corn syrup is a sweetener linked to health concerns when consumed in excess, such as weight gain and metabolic issues.

See more about High Fructose Corn Syrup →
Caffeine
Good

Caffeine is a stimulant that can improve alertness and concentration, making it a common ingredient in energy-boosting beverages.

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Carbonated Water
Neutral

Carbonated water is simply water infused with carbon dioxide, providing the fizzy sensation without added sugars or calories.

See more about Carbonated Water →
Natural Flavors
Neutral

Natural flavors are added to enhance taste but do not provide nutritional value and are generally considered safe in small amounts.

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Citric Acid
Neutral

Citric acid is a common additive that provides tartness and preserves the beverage, with no significant health concerns in typical consumption.

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Scout's score is an independent read of KFC's published ingredient statement and nutrition for this item, last scored September 2026. Recipes change — check the chain for today's menu. Scout takes no payment from any chain. How we score · Full KFC menu.