Diet Coke Nutrition Facts: Calories, Macros & Health Benefits
Summary: 100g of diet coke contains 0 calories, 0g protein, 0g carbs, and 0g fat. Diet Coke is a good source of iron, zinc.
Nutrition Facts — per 100g
| Nutrient | Amount | % Daily Value |
|---|---|---|
| Calories | 0 kcal | 0% |
| Protein | 0.00g | 0% |
| Carbohydrates | 0.00g | 0% |
| Total Fat | 0.00g | 0% |
| Sodium | 17.0mg | 1% |
| Calcium | 1.0mg | 0% |
| Iron | 2.0mg | 11% |
| Magnesium | 0.01mg | 0% |
| Zinc | 10.0mg | 91% |
Is Diet Coke Good for You?
Diet Coke is a zero-calorie beverage that contains minimal nutrients in meaningful amounts. Per 100g, it provides 17mg of sodium (1% Daily Value) and notably 10mg of zinc (91% Daily Value), though the latter is offset by its lack of vitamins, fiber, and other essential nutrients. It is best consumed in moderation as an occasional beverage rather than a nutritional staple.
Key Health Benefits of Diet Coke
Zero Calories Support Weight Management — With 0 kcal per 100g, Diet Coke is a calorie-free alternative to full-sugar sodas, making it useful for those monitoring caloric intake without sacrificing a carbonated drink experience.
Low Sodium Content — At just 17mg per 100g (1% Daily Value), it is a relatively low-sodium option compared to many other beverages, supporting heart health and healthy blood pressure maintenance.
Provides Zinc — Each 100g serving delivers 10mg of zinc, contributing 91% of the Daily Value. This mineral is essential for immune function, wound healing, and protein synthesis.
Minimal Sugar Impact — Because it is sweetened with artificial sweeteners rather than sugar, Diet Coke does not spike blood glucose levels, making it suitable for people managing diabetes or blood sugar sensitivity.
Negligible Calcium and Iron — While Diet Coke contains trace amounts of calcium (1mg) and iron (2mg, 11% Daily Value), it is not a reliable source for these nutrients and should not be relied upon for bone or oxygen transport support.
How Does Diet Coke Compare?
Diet Coke stands out among diet sodas for its zero-calorie formula and distinctive taste profile. Unlike regular Coca-Cola (which contains ~42 kcal and 39g of sugar per 100ml), Diet Coke eliminates sugar entirely while maintaining carbonation and flavor. It is comparable to other diet colas in nutritional composition, though its zinc content (10mg per 100g) is notably higher than most competing beverages in its category.
Frequently Asked Questions
How many calories are in Diet Coke?
Diet Coke contains 0 kcal per 100g, making it a truly zero-calorie beverage. A standard 12 oz (355ml) can also provides essentially zero calories.
Is Diet Coke good for weight loss?
Diet Coke can support weight loss goals because it is calorie-free, allowing you to enjoy a carbonated beverage without adding calories to your diet. However, it should complement—not replace—water and whole foods as part of a balanced weight loss strategy.
Does Diet Coke have any iron?
Yes, Diet Coke contains 2mg of iron per 100g, which provides 11% of the Daily Value. However, it is not a reliable dietary source of iron compared to food sources like red meat, spinach, or fortified cereals.
Can I drink Diet Coke on a keto diet?
Diet Coke is keto-compatible because it is zero-carb and zero-calorie, fitting within standard keto macronutrient guidelines. It is a popular choice among people following ketogenic diets who want a zero-sugar carbonated option.
How should I store Diet Coke?
Store Diet Coke in a cool, dark place away from direct sunlight to maintain carbonation and flavor quality. Once opened, it is best consumed within 2-3 days for optimal taste, though it remains safe to drink longer if properly sealed and refrigerated.
How to Track Diet Coke Nutrition with Gram
The Gram app makes logging Diet Coke effortless—simply search for “Diet Coke,” select your serving size, and instantly see its full nutrient breakdown including calories, sodium, zinc, and minerals. Our AI food scanning feature also allows you to photograph a can or bottle for automatic recognition and logging. Whether you’re tracking macros for weight loss or monitoring sodium intake, Gram gives you precise nutritional insights at a glance.
Frequently Asked Questions
How many calories are in Diet Coke?
Diet Coke contains 0 kcal per 100g, making it a truly zero-calorie beverage. A standard 12 oz (355ml) can also provides essentially zero calories.
Is Diet Coke good for weight loss?
Diet Coke can support weight loss goals because it is calorie-free, allowing you to enjoy a carbonated beverage without adding calories to your diet. However, it should complement—not replace—water and whole foods as part of a balanced weight loss strategy.
Does Diet Coke have any iron?
Yes, Diet Coke contains 2mg of iron per 100g, which provides 11% of the Daily Value. However, it is not a reliable dietary source of iron compared to food sources like red meat, spinach, or fortified cereals.
Can I drink Diet Coke on a keto diet?
Diet Coke is keto-compatible because it is zero-carb and zero-calorie, fitting within standard keto macronutrient guidelines. It is a popular choice among people following ketogenic diets who want a zero-sugar carbonated option.
How should I store Diet Coke?
Store Diet Coke in a cool, dark place away from direct sunlight to maintain carbonation and flavor quality. Once opened, it is best consumed within 2-3 days for optimal taste, though it remains safe to drink longer if properly sealed and refrigerated.
Track your nutrition with Gram
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Nutrition data sourced from USDA FoodData Central. Track diet coke and thousands of other foods with the Gram app.