Sonic Sugar Free Slush Calories & Nutrition Facts
If you’re a fan of Sonic’s refreshing slushes but want to cut down on sugar, you might be eyeing the Sonic Sugar Free Slush. Does sonic have a sugar free slush?
Sounds perfect, right! But here’s the catch—despite the “sugar-free” tag, you’ll still get a minimum of 48g to 51g of sugar in your drink.
Another interesting fact? A medium-sized Sonic slush can pack anywhere between 250 to 290 calories, depending on the flavor. You can enjoy it with happy hour deal of sonic.
And if you thought the “sugar-free” versions would be lower in carbs, think again—these slushes still have a significant carbohydrate count due to their icy base like boba drink at sonic.
Are Sonic Sugar Free Slushes Truly?
Not exactly! Despite the “sugar-free” label, Sonic’s slushes still contain 48g-51g of sugar per serving. Why? The secret’s in the base—loaded with sugar even before flavors are added. Syrups may enhance the taste, but the real sugar surprise comes from the slush foundation itself!
But don’t worry! Sonic offers various flavor options that let you enjoy a sweet, chilled treat with fewer added sugars.
Let’s explore these flavors, their nutritional breakdown, and how you can customize your next Sonic sugar-free slush.
Can You Get a Plain Slush at Sonic?
Yes, Sonic offers a base slush without added flavors. It allow customers to enjoy the simple, icy sonic lunch refreshment or customize it with their preferred syrups.
Sonic Sugar Free Slush Calories
If you want to know about sugar free sonic slush nutrition value then have a look on following table. It covers how many carbs in sonic sugar free slush and calories.
Drink | Calories (Medium Size) | Carbs | Sugar |
Diet Limeade | 5-10 kcal | 1-2g | 0g |
Unsweetened Iced Tea | 0 kcal | 0g | 0g |
Diet Sodas (Coke Zero, Sprite Zero, etc.) | 0 kcal | 0g | 0g |
Water with Sugar-Free Flavor Add-In | 5-15 kcal | 1-3g | 0g |
Diet Cherry Limeade | 10-15 kcal | 3-5g | 0g |
Sugar-Free POWERADE Mountain Berry Blast | 5 kcal | 1g | 0g |
🔥 Pro Tip: You can customize any drink with sugar-free syrups like Blackberry, Diet Cherry, Mango, Peach, and Raspberry to enjoy a low-calorie, flavorful experience!
Sonic Sugar Free Slush Flavors
While Sonic does not offer a sugar-free slush base, they provide sugar-free flavor syrups that can be added to various drinks to create a refreshing sugar-free experience. These sugar-free add-ins include:

Blackberry Slush
A rich and juicy blackberry flavor that adds a burst of berry goodness to your slush. Ideal for a sweet, refreshing treat.
Diet Cherry Slush
A classic cherry taste with a sweet and tangy profile, perfect for a nostalgic, guilt-free sip.


Mango Slush
Tropical mango flavor that delivers a sweet and exotic twist to your slush experience, transporting you to paradise.
Peach Slush
Succulent peach flavor offering a delightful and fruity refreshment with a light, summery touch.


Raspberry Slush
A vibrant raspberry essence that provides a perfect balance of sweet and tart notes, leaving a refreshing aftertaste.
By combining these flavors with other beverage options, customers can enjoy a flavorful yet sugar-free alternative to Sonic’s classic slushes.
How to Order a Sugar-Free Slush at Sonic
Since the traditional slush mix isn’t sugar-free, you’ll need to get creative with your order. Here are some ways to enjoy a slush-like drink at Sonic without the sugar:
Diet Limeade with Sugar-Free Add-Ins
One of the best sugar-free Sonic drink options is the Diet Limeade, which is made with Sprite Zero and fresh lime juice. Customers can customize it by adding any of the sugar-free flavor syrups mentioned above.
Unsweetened Iced Tea with Sugar-Free Flavor
Another refreshing sugar-free alternative is Sonic’s unsweetened iced tea, which can be enhanced with sugar-free syrups. This is a great option for those who enjoy fruit-infused tea without added sugars.
Diet Sodas with Sugar-Free Flavor Additions
Sonic offers several diet soda options that can be customized with sugar-free syrups to mimic the fruity flavors of a slush:




Adding sugar-free mango, blackberry, or cherry to a Sprite Zero with ice creates a slush-like experience without the sugar.
Order A Sugar-Free Slush On Sonic App
While Sonic doesn’t offer a completely sugar-free slush, you can reduce sugar by customizing your order. Follow these steps:
Although this method lowers sugar intake, remember that the slush base still contains sugar. Must check sonic availability hours before your custom order.
What Is The Sonic Slush Menu?
Sonic Drive-In’s Slush menu offers a vibrant array of icy beverages, blending classic flavors with real fruit infusions to cater to diverse taste preferences.
Whether you’re craving a nostalgic sonic Christmas treat or a fruity refreshment, Sonic’s Slushes have something for everyone.
Let’s breakdown of sonic slush menu items
Sonic Classic Slush Flavors
These timeless flavors have been fan favorites for years, providing a sweet and refreshing experience perfect for any occasion.

Sonic Classic Slush Calories
Item | Mini | Small | Medium | Large | RT 44 |
Mango Slush | 120 Cal | 180 Cal | 250 Cal | 390 Cal | 550 Cal |
Cherry Slush | 130 Cal | 200 Cal | 280 Cal | 440 Cal | 680 Cal |
Grape Slush | 140 Cal | 200 Cal | 290 Cal | 450 Cal | 630 Cal |
Mountain Berry Blast® Slush | 130 Cal | 190 Cal | 270 Cal | 430 Cal | 600 Cal |
Cranberry Slush | 150 Cal | 210 Cal | 310 Cal | 480 Cal | 670 Cal |
Peach Slush | 120 Cal | 180 Cal | 250 Cal | 390 Cal | 540 Cal |
Blue Coconut Slush | 130 Cal | 190 Cal | 270 Cal | 420 Cal | 590 Cal |
Blue Raspberry Slush | 130 Cal | 190 Cal | 270 Cal | 420 Cal | 580 Cal |
Sonic Real Fruit Slush Flavors
For those seeking a more natural and fruity experience, Sonic’s Real Fruit Slushes incorporate genuine fruit flavors, elevating the traditional slush to a wholesome treat.

Sonic Real Fruit Slush Calories
Item | Mini | Small | Medium | Large | RT 44 |
Strawberry Slush | 140 Cal | 210 Cal | 290 Cal | 460 Cal | 630 Cal |
Lemonade Slush | 140 Cal | 190 Cal | 280 Cal | 430 Cal | 600 Cal |
Cherry Limeade Slush | 160 Cal | 220 Cal | 320 Cal | 490 Cal | 680 Cal |
Limeade Slush | 140 Cal | 190 Cal | 280 Cal | 430 Cal | 600 Cal |
Limited-Time Offerings
Sonic periodically introduces limited-time slush flavors and combinations to keep the menu exciting.
Sonic Slush Secret Menu
Beyond the standard offerings, Sonic’s secret menu features creative slush combinations that adventurous customers can request.
These secret menu items showcase Sonic’s versatility and commitment to flavor innovation, providing customers with unique and personalized beverage experiences.
Sonic Drive-In Help Line
💻Online Order Support:
Having trouble with your Sonic online order? Visit the Sonic Drive-In Online Ordering page to track your order, make changes, or contact support directly.
📞Sonic Customer Service Phone Number:
For immediate assistance, call 1-866-657-6642. Sonic’s team is available to help with online orders, menu inquiries, and general support.
Final Words
Sonic’s sugar-free slushes may seem like a healthier option, but they still contain 48g-51g of sugar due to the slush base. A medium Sonic slush has 250-290 calories, depending on the flavor.
For lower-sugar alternatives, try Diet Limeade, Unsweetened Iced Tea, or Diet Sodas with sugar-free syrups like Blackberry, Mango, and Peach for a refreshing, low-calorie drink.