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Watermelon Basil Fizz Mocktail on light pink marble background
July 13, 2026

Watermelon Basil Fizz

Beat the heat with a refreshing four-ingredient mocktail. Perfect for sipping by the pool or with your favorite cookout eats, this Whole30 Watermelon Basil Fizz is powered by LMNT Raw Unflavored Electrolytes and will keep you cool and hydrated in even the hottest summer days.

Tips and Tricks

  • Since we’re not including any added sugar, using a ripe watermelon or even a yellow watermelon will result in a sweeter flavor, whereas one that isn’t as ripe will have a much less sweet finish; additionally, using melon that is closer to the center of the fruit is sweeter than the portion near the rind. 
  • For a sweeter mocktail, skip the sparkling water and use more watermelon juice.
  • Use seedless watermelon if available since you’ll be blending the watermelon up to make the watermelon juice.
  • You can also use watermelon juice purchased from the store. Just be sure the ingredients don’t include any incompatible ingredients like added sugar.

Why You’ll Love This Watermelon Basil Fizz

  • A refreshing alcohol-free beverage perfect for summer
  • Sweeted only with fruit and juice—no added sugar 
  • It’s made with LMNT Raw Unflavored Electrolytes, our favorite way to boost hydration in any Whole30 beverage

Are LMNT Electrolytes Whole30 compatible?

Since it has no added sweeteners, the Raw Unflavored LMNT is compatible with the Whole30. If you’re not currently in a Whole30 elimination, you can enjoy any of their flavored, lightly stevia-sweetened versions for even more fun beverage options. Try their new, lightly caffeinated Lemonade + Iced Tea LMNT for summer!

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Looking for even more hydrating mocktails? Check out this roundup of 5 electrolyte-boosted Whole30 summer mocktails

Watermelon Basil Fizz Mocktail on light pink marble background

Watermelon Basil Fizz

Servings 2
Prep Time 5 minutes

Ingredients  

  • 16 oz watermelon juice or 1/4 watermelon, blended and strained
  • 1 pack LMNT Raw Unflavored electrolytes
  • 5 leaves fresh basil
  • ice

Instructions

  • To make the watermelon juice
  • ADD 1/4 of a medium sized watermelon to a blender (about 4 cups cubed)
  • BLEND well.
  • STRAIN through a mesh strainer or nut milk bag to separate pulp and juice.
  • To make the mocktail
  • ROLL basil leaves between hands to lightly muddle and release flavor.
  • ADD to a cocktail shaker or a glass with a lid.
  • POUR in 1 packet of LMNT Raw Unflavored electrolytes.
  • POUR in watermelon juice to fill.
  • SHAKE well and strain into a glass with ice.
  • GARNISH with sliced watermelon to serve.
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Alyssa Anthony

Alyssa Anthony is the Whole30 Director of Branded Content. With a background in marketing and sales, Alyssa has spent the the better part of a decade working with food and beverage brands in the Whole30 Approved network. When she’s not managing projects for Whole30, you can find her with family and friends, spending time outdoors, or at a new restaurant/cafe.

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