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Low-Carb Lemon & Lime Cooler

4.3 stars, average of 51 ratings

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This zesty homemade sugar-free lemonade makes a deliciously refreshing drink in the cooler months. A mix of freshly squeezed lemons and limes create a beautiful citrus base, with mint leaves adding a pop of colour and minty flavour.

While I’ve used mint here as it’s what I had on hand, you could also experiment with other herbs – a spring of rosemary or some crushed basil leaves would both add lovely flavour profiles to this low-carb cooler.

Hands-on Overall

Serving size 1 cup/ 240 ml

Allergy information for Low-Carb Lemon & Lime Cooler

✔  Gluten free
✔  Dairy free
✔  Egg free
✔  Nut free
✔  Nightshade free
✔  Pork free
✔  Avocado free
✔  Coconut free
✔  Fish free
✔  Shellfish free
✔  Beef free

Nutritional values (per serving, 1 cup/ 240 ml)

Net carbs2.7 grams
Protein0.1 grams
Fat0 grams
Calories9 kcal
Calories from carbs 92%, protein 4%, fat 4%
Total carbs2.8 gramsFiber0.1 gramsSugars1.1 gramsSaturated fat0 gramsSodium9 mg(0% RDA)Magnesium4 mg(1% RDA)Potassium33 mg(2% EMR)

Ingredients (makes 1.75 L/ 8 cups)

  • 1/2 cup fresh lemon juice (120 ml/ 4 fl oz)
  • 1/2 cup fresh lime juice (120 ml/ 4 fl oz)
  • 7 cups water (about 1.6 L)
  • 1/2 cup powdered Erythritol or Swerve (80 g/ 2.4 oz)
  • Optional: stevia drops, to taste
  • To serve: lemon and lime slices, mint leaves and ice cubes


  1. Juice lemons and limes until you have 1/2 cup each lemon and lime juice.
    Low-Carb Lemon & Lime Cooler
  2. Pour juices into a bowl or jug and add erythritol. Stir until the erythritol has all dissolved.
    Low-Carb Lemon & Lime Cooler
  3. Transfer to a large jug and add about 1.6 L of water. Stir to combine and taste. If it tastes too sour, add stevia one drop at a time, stirring after each drop, until you get your desired sweetness.
  4. To serve, fill glasses with few ice cubes, sliced lemon and lime, and mint leaves. Pour lemonade over to cover.
    Low-Carb Lemon & Lime Cooler
  5. Enjoy! Low-Carb Lemon & Lime Cooler Lemonade will last in a sealed bottle in the fridge up to one week.
    Low-Carb Lemon & Lime Cooler

Ingredient nutritional breakdown (per serving, 1 cup/ 240 ml)

Net carbsProteinFatCalories
Lemon juice, fresh
1 g0.1 g0 g3 kcal
Lime juice, fresh
1.2 g0.1 g0 g4 kcal
Water, still
0 g0 g0 g0 kcal
Erythritol (natural low-carb sweetener)
0.5 g0 g0 g2 kcal
Total per serving, 1 cup/ 240 ml
2.7 g0.1 g0 g9 kcal

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Dearna Bond
Creator of

Dearna Bond

Dearna is a passionate foodie and food photographer, and loves sharing her knowledge and enthusiasm for both via her food blog and online photography courses.

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Comments (2)

I added seltzer water to bring carbonation.

I agree, that's a great option!