Small– $2.19 | 0cal Medium-$2.59 |0cal Large -$3.19 | 0cal
Diet Coke fixes everything. That’s why it’s a staple. Wondering why it tastes so good at McDonald’s? The Coke® products are fresh, and the guidelines set by Coca-Cola® are always followed by using a ratio of syrup that allows ice to melt—plus the water and Coca-Cola® syrup are pre-chilled before they enter the soda fountain.
Diet Coke® has zero calories and is available in extra small, small, medium and large fountain drink sizes. Order yours today from the full menu in the app for pickup or McDelivery®.*
*At participating McDonald’s. McDelivery prices may be higher than at restaurants. Delivery/other fees may apply.
Order it now through Mobile Order & Pay on the McDonald’s app or via McDelivery®.
Nutrition Facts: Diet Coke® (Per Serving)
| Nutrient | Amount | % Daily Value |
| Calories | 0 Cal | – |
| Total Fat | 0g | 0% |
| Saturated Fat | 0g | 0% |
| Trans Fat | 0g | – |
| Cholesterol | 0mg | 0% |
| Sodium | 50mg | 2% |
| Total Carbohydrates | 0g | 0% |
| Dietary Fiber | 0g | 0% |
| Total Sugars | 0g | – |
| Added Sugars | 0g | 0% |
| Protein | 0g | – |
| Calcium | 2mg | 0% |
| Iron | 0mg | 0% |
| Potassium | 45mg | 0% |
| Vitamin D | 0mcg | 0% |
Allergen Information
Diet Coke
Ingredients: Carbonated Water, Caramel Color, Phosphoric Acid, Sodium Saccharin, Potassium Benzoate (to Protect Taste), Natural Flavors, Citric Acid, Caffeine, Potassium Citrate, Aspartame
Ice
Ingredients: Ice.
Frequently Asked Questions – McDonald’s Diet Coke®
Is McDonald’s Diet Coke® the same as store-bought Diet Coke®?
McDonald’s utilizes Coca-Cola® syrup and adheres to exclusive chilling and mixing protocols, which many customers claim makes it superior to bottled varieties.
Does McDonald’s Diet Coke® contain caffeine?
Yes, Diet Coke® holds roughly 46 mg of caffeine in a small serving.
Is Diet Coke® available in all McDonald’s locations?
Yes, Diet Coke® is a core beverage option at virtually all McDonald’s restaurants in the U.S.
What sizes does Diet Coke® come in?
You can select it in Extra Small, Small, Medium, or Large fountain drink options.
Is Diet Coke® safe for diabetics?
Yes, Diet Coke® has no sugar and zero calories, making it typically safe for most individuals with diabetes. However, seek your doctor’s guidance for personalized recommendations.
Does McDonald’s serve Diet Coke® on the Dollar Menu?
At numerous restaurants, Extra Small and Small Diet Coke® are featured on the $1 $2 $3 Dollar Menu.
Can I order Diet Coke® with no ice?
Yes, McDonald’s permits customizations like light ice, no ice, or extra ice via the app or when ordering in person.
What sweeteners are used in McDonald’s Diet Coke®?
Diet Coke® includes Aspartame and Sodium Saccharin, both calorie-free sweetening agents.
Is Diet Coke® gluten-free?
Yes, Diet Coke® is verified gluten-free, with no ingredients sourced from gluten-containing grains.
Can I include Diet Coke® in my combo meal?
Definitely! Diet Coke® can be chosen as your fountain beverage in most combo meals, whether ordering in-store, via kiosk, or through the app.