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Keto Watermelon Lime Refresher

A light and refreshing low-carb watermelon drink made with fresh lime, sparkling water, ice, and keto-friendly sweetener.
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Prep Time 5 minutes
Cook Time 1 minute
Total Time 6 minutes
Servings: 2
Course: Drinks
Cuisine: American
Calories: 30
Ingredients Method Notes

Ingredients
  

  • 1 cup seedless watermelon cubed
  • 2 tablespoons fresh lime juice
  • 1 to 2 tablespoons powdered keto sweetener or liquid sweetener to taste
  • 1½ cups cold sparkling water
  • 1 cup ice
  • Pinch of salt
Optional
  • Fresh mint
  • Lime zest
  • Watermelon extract
  • Cucumber slices
  • Sugar-free electrolyte drops

Method
 

  1. Add watermelon, lime juice, sweetener, and salt to a blender.
  2. Blend until smooth.
  3. Strain through a fine-mesh strainer if you prefer a smoother drink.
  4. Fill two glasses with ice.
  5. Divide the watermelon mixture between the glasses.
  6. Top with sparkling water.
  7. Stir gently.
  8. Taste and adjust the lime or sweetener.
  9. Garnish with mint or a lime wedge if desired.
  10. Serve immediately.

Notes

What Are the Macros for Keto Watermelon Lime Refresher?

Approximate nutrition per serving:
  • Calories: 30
  • Fat: 0 grams
  • Protein: 0.5 grams
  • Total carbohydrates: 8 grams
  • Fiber: 0.5 grams
  • Net carbohydrates: about 7.5 grams
The exact macros will depend on the amount of watermelon and sweetener used.
If you want to lower the carbs further, use ½ cup watermelon instead of 1 cup and increase the sparkling water.

Allergy Notes

This recipe is naturally:
  • Dairy-free
  • Egg-free
  • Nut-free
  • Gluten-free
Always check packaged sweeteners, flavored sparkling water, and electrolyte products if allergies or sensitivities are a concern.

Recipe Tips

  • Use very cold watermelon for the most refreshing drink.
  • Don’t overdo the watermelon if you’re closely tracking carbs.
  • Fresh lime juice tastes better than bottled.
  • Add sparkling water only after blending.
  • Freeze watermelon cubes for a slushie variation.
  • Mint makes the drink extra refreshing.
  • Add watermelon extract if you want stronger flavor without extra fruit.
  • Serve immediately so the sparkling water stays fizzy.