Tim Hortons Diet Coke – Bold, Fizzy & Zero-Sugar Perfection

Diet Coke® 500mL Bottle

Tim Hortons Diet Coke is a fizzy, sugar-free classic that delivers the bold, crisp cola taste you love with zero sugar and almost no calories—just 1–2 calories per serving.

It’s sweetened with aspartame and other zero-calorie sweeteners, giving it that familiar cola flavor without the sugar or extra calories. Served ice-cold over plenty of ice, it’s incredibly refreshing — the perfect companion on hot days, with meals, or whenever you want a light, bubbly drink.

Both kids and adults enjoy its clean, crisp taste and satisfying fizz. Sip it slowly to savor the refreshment, or grab it on the go — it’s a simple, tasty option you can feel good about enjoying anytime.

Price: $2.69

Ingredients

Diet Coke®: Carbonated water | Caramel colour | Phosphoric and citric acid | Aspartame (contains phenylalanine) | Flavour | Sodium benzoate | Acesulfame-potassium

Contains (per 500 mL): 185 mg aspartame | 22 mg acesulfame-potassium

Nutritional Information

The Tim Hortons Diet Coke is a fizzy, refreshing drink with almost no calories — just 1–2 calories per serving — making it a light and guilt-free choice.

Served ice-cold over plenty of ice, it delivers that classic crisp, bubbly cola taste you know and love, without any added sugar. Sweetened with aspartame and other zero-calorie sweeteners, it gives you all the bold cola flavor with none of the sugar or extra calories.

This drink is perfect for hot days when you want something bubbly and cooling, or anytime you’re craving a light, tasty beverage that pairs well with meals, snacks, or just on its own. It’s simple, satisfying, and always refreshing.

Available in small, medium, or large sizes to match your thirst, so you can pick the perfect portion for any moment.

Let’s check the Diet Coke Nutrition Information below to see the full details on calories, caffeine, and more in each cup.

Calories0 kcal
Fat0 g
Saturated Fat0 g
Trans Fat0 g
Cholesterol0 mg
Sodium0 mg
Carbohydrates0 g
Fiber0 g
Sugar0 g
Proteins0 g

The nutrition information presented on this website is based on standard product formulations and was obtained through analysis by Tim Hortons’ nutritional software, entitled ESHA Genesis R&D, and information provided by their suppliers. Variations may occur due to differences in suppliers, ingredient substitutions, recipe revisions, assembly at restaurant level, and/or season of the year. Regional variations may occur. Certain menu items may vary from restaurant to restaurant and may not be available at all locations. Baked goods may vary in size. This information includes a selection of Tim Hortons’ most popular items and may not include all items found in-restaurant. Information is applicable to products in Canadian restaurants and may be subject to change at any time.

Whether you’re craving a quick snack, a hearty meal, or a delicious coffee treat, Tim Hortons has you covered — every item hits the spot just right.
They use high-quality ingredients and offer tons of customization options, so you can make every order exactly how you like it. That’s why people keep coming back for more.
From classic breakfast sandwiches and fresh-baked goods to hot and iced drinks, there’s always something tasty waiting for you.
Explore the full Tim Hortons menu to discover it all — your next favorite is just a click or visit away!

Frequently Asked Questions

Yes, Tim Hortons serves Diet Coke at most locations in Canada (and many international ones). It’s available as a fountain drink in small, medium, and large sizes, served ice-cold over ice. You can order it at the counter, drive-thru, kiosk, or through the Tim Hortons app/online. It’s a staple soft drink option alongside Coke, Sprite, and other choices.

Prices vary by location, province, and size (approximate Canadian pricing as of 2026):
Small (~12 oz): ~CA$1.99–$2.49
Medium (~16 oz): ~CA$2.29–$2.79
Large (~20 oz): ~CA$2.59–$3.19
It’s one of the most affordable beverages on the menu — cheaper than coffee drinks, lattes, or quenchers. Check the Tim Hortons app, website, or your local store for exact current pricing (taxes extra).

Diet Coke has virtually 0 calories (typically 1–2 calories per serving) across all sizes — small, medium, and large. It contains:
0g fat
0g sugar
0g carbohydrates (or trace amounts)
0g protein
The near-zero calories come from the zero-calorie sweeteners (mainly aspartame) used instead of sugar. It’s a great choice if you’re watching calorie intake.

Diet Coke is a low-calorie, sugar-free soft drink, so it can fit into many diets when consumed in moderation:
Pros: Virtually 0 calories and 0 sugar — excellent for weight management, diabetes control, or low-carb/keto lifestyles
No fat, no carbs (or trace amounts)
Caffeine (~30–50 mg per 12 oz serving) for a mild energy boost
Hydrating base (mostly carbonated water)
Cons & considerations: Contains artificial sweeteners (primarily aspartame), which are safe for most people according to health authorities (FDA, Health Canada), but some individuals may experience sensitivity or prefer to avoid them.
It’s not nutrient-rich — no vitamins, minerals, or antioxidants like in water, unsweetened tea, or fruit-based drinks.
Frequent consumption of diet sodas has been linked in some studies to potential long-term effects (e.g., cravings, gut health, or dental erosion from acidity), though evidence is mixed and it’s generally considered safe in moderation.
Overall: Diet Coke is a healthy-ish choice compared to regular sugary soda (which has 140+ calories and 39 g sugar per 12 oz). It’s a good occasional or everyday option if you enjoy fizzy drinks and want to avoid sugar/calories. For maximum health, plain water, unsweetened tea, or sparkling water are better daily choices — but Diet Coke is a reasonable, low-impact treat when you want something bubbly and flavorful.
Enjoy your Diet Coke — it’s a crisp, zero-sugar classic!

Nutrition and availability can vary slightly by location — check the Tim Hortons app or in-store for the most accurate info in your area.