Is the Peach Flavor at Sonic Sugar Free?

November 28, 2025 •

4 min read

According to Sonic's official nutritional information, the peach flavor is one of several sugar-free options available for custom drinks. This means that customers can enjoy the sweet taste of peach in their iced teas, water, and sodas without the added sugar and calories typically found in standard fruit syrups.

Quick Summary

The peach flavor add-in at Sonic is indeed sugar-free, sweetened with Splenda, and can be added to various drinks like water, unsweetened tea, or diet soda. Standard menu items featuring peach, such as slushes or shakes, typically contain sugar unless specifically ordered with a sugar-free modification.

Key Points

Yes, the peach flavor is sugar-free: The flavor add-in, or syrup, for peach at Sonic is a sugar-free option.
Specify 'sugar-free' when ordering: To ensure you get the low-calorie version, you must clearly request the 'sugar-free' peach flavor.
Standard peach drinks are not sugar-free: Regular peach menu items like slushes and milkshakes contain sugar unless you customize them specifically.
Sweetened with Splenda: Sonic uses Splenda to sweeten its sugar-free flavor additions, including peach.
Pairs with several bases: The sugar-free peach flavor can be added to unsweetened iced tea, water, Diet Coke, or Sprite Zero.
Look out for hidden sugar: Be mindful of other add-ins like cream or candy, which will increase the sugar content of your drink.
Sonic offers multiple sugar-free options: Besides peach, other sugar-free flavors include blackberry, mango, and raspberry.

Is the Sonic Peach Flavor Sugar-Free?

Yes, the peach flavor add-in at Sonic is sugar-free. It is one of several sugar-free flavor shots offered by the drive-in, which include mango, raspberry, and blackberry. Sonic uses Splenda, an artificial sweetener, to provide the sweetness without the sugar and calories. This makes it a popular choice for health-conscious customers and those monitoring their sugar intake.

How to Order a Sugar-Free Peach Drink

Ordering a sugar-free peach drink at Sonic is straightforward, but it requires being specific with your request. The key is to specify the type of drink and that you want the 'sugar-free' version of the peach flavor. Here are some examples of popular sugar-free peach combinations:

Sugar-Free Peach Water: A simple and refreshing option, just ask for a water with sugar-free peach flavor added. You can also mix it with other sugar-free flavors like raspberry or mango.
Diet Cherry Limeade with Sugar-Free Peach: Elevate a classic diet drink by adding the sugar-free peach syrup for a peachy-cherry flavor combination.
Sprite Zero with Sugar-Free Peach: Create a DIY 'Peaches & Cream' soda by adding sugar-free peach flavor and vanilla sweet cream to Sprite Zero.
Unsweetened Tea with Sugar-Free Peach: Add a fruity twist to unsweetened iced green or black tea by requesting the sugar-free peach mix-in.

What About the Other Peach-Flavored Items?

While the peach flavor add-in is sugar-free, it's important to note that many of Sonic's standard peach-flavored menu items are not. This is a crucial distinction to make to avoid a sugary surprise.

For example, the Peach Slush and any other slush variations are typically made with sugary syrups and are not sugar-free. Similarly, the Super Peach Real Ice Cream Slush or a Peach Shake will contain a significant amount of sugar due to the ice cream base and other components. Always check the nutrition information or specify 'sugar-free' when ordering.

Customizing Your Low-Sugar Sonic Order

Sonic's extensive drink customization options make it easy to create delicious, low-sugar beverages. Here are some pro tips for customizing your drink:

Start with a sugar-free base: Your journey to a sugar-free drink starts with the base. Choose options like water, unsweetened tea, Diet Coke®, or Sprite Zero®.
Mix and match flavors: Get creative by combining the sugar-free flavor shots. Try peach with mango for a tropical twist or with raspberry for a berry-peach fusion.
Ask for specific sweeteners: If you have a preference for artificial sweeteners, you can ask which ones are used. Sonic uses Splenda for its sugar-free syrups.
Be aware of other add-ins: Extra additions like sweet cream, whipped topping, or real fruit can add sugar and calories. Always clarify your order to ensure it remains low-sugar.
Check the app: The Sonic app often includes a nutritional breakdown of menu items, allowing you to see the sugar content of specific combinations before you order.

Sonic's Sugar-Free Options: A Comparison

To help you decide on your next low-sugar order, here's a comparison of common Sonic drink bases and their sugar-free options.


Drink Base	Sugar-Free Version	Sugar-Free Flavors Available
Iced Tea	Unsweetened Iced Tea, Diet Green Tea	Blackberry, Mango, Peach, Raspberry
Soda	Diet Coke, Coke Zero, Diet Dr. Pepper, Sprite Zero	Blackberry, Mango, Peach, Raspberry, Diet Cherry
Slush	No sugar-free slush base	Mix with water or diet soda base instead
Limeade	Diet Limeade, Diet Cherry Limeade	Peach, Mango, Raspberry
Water	Water	Blackberry, Mango, Peach, Raspberry, Diet Cherry

Other Sugar-Free Options at Sonic

Beyond the flavor shots, Sonic provides several other items for those on a low-sugar diet. The Sonic Singles To Go drink mix packets, available in stores like Walmart, offer a sugar-free way to enjoy Sonic flavors at home, including their popular Ocean Water and Cherry Limeade. For those looking for a healthier drink, the Mermaid Water secret menu item can be customized with sugar-free syrups for a low-calorie treat. You can also order a simple, unflavored water or unsweetened tea to pair with your food. Remember to always confirm the ingredients with the staff, especially if you have dietary restrictions.

Conclusion

In summary, the peach flavor add-in at Sonic is indeed sugar-free and is sweetened with Splenda, making it a great option for those seeking a low-calorie beverage. However, it is critical to distinguish this from the standard sugary peach-flavored items like slushes and shakes. By starting with a sugar-free base and specifying your flavor choices, you can create a delicious, customizable drink that satisfies your craving for a fruity peach taste without the extra sugar.

Sources

Reddit. (2025). Workers, do yall know which drink flavors are sugar free?
Sonic Drive-In. (2017). CUSTOMIZE YOUR DRINK.
TikTok. (2024). MORE SUGAR FREE SONIC DRINKS @SONIC Drive-In ...
Cozymeal. (2025). 18 Top Sonic Secret Menu Items To Try in 2025.
CalorieKing. (n.d.). Calories in Sonic Drive-In Peach (sugar free) Add In.

Frequently Asked Questions

Yes, Sonic offers a sugar-free peach flavor shot, or add-in, that you can request for your drink. The standard, non-diet versions of peach-flavored drinks are not sugar-free.

The sugar-free peach flavor at Sonic is sweetened with Splenda, an artificial sweetener, which allows for the taste without the added sugar.

No, the traditional slush base at Sonic is made with sugar. To get a sugar-free peach drink with a similar taste, you can request water or a diet soda with the sugar-free peach syrup and crushed ice.

No, only specific flavor shots are designated as sugar-free. These typically include peach, raspberry, blackberry, mango, and diet cherry. Always confirm with the staff or check the nutrition information.

Yes, you can mix the sugar-free peach flavor with other sugar-free options at Sonic, such as mango, raspberry, or diet cherry, to create your own custom low-calorie beverage.

While the sugar-free flavor is likely free of gluten and dairy, it is always recommended to check the most current nutritional information or ask a staff member to confirm if you have specific dietary needs. Items like sweet cream, for example, would not be vegan.

To order a low-sugar 'Peaches & Cream,' start with a Sprite Zero base, add the sugar-free peach flavor shot, and ask for a small amount of vanilla sweet cream for a creamy texture.