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keto low carb lemonade in a mason jar with fresh lemons

Easy Keto Low-Carb Lemonade

Easy Keto Low-Carb Lemonade is a quick recipe prepared with freshly squeezed lemons, water, and monkfruit, stevia, or Swerve for a natural sweetener. You won't miss the ChickFilA version after trying this!
Course Drinks
Cuisine American
Keyword keto lemonade, low carb lemonade, sugar free lemonade
Prep Time 10 minutes
Cook Time 5 minutes
Total Time 15 minutes
Servings 10 cups
Calories 13kcal


  • 2 cups fresh-squeezed lemon juice
  • 2 cups water
  • 2 cups sweetener
  • additional water to adjust to taste I added 5 cups


  • Juice the lemons using a lemon squeezer or lemon juicer.
  • Add the lemon juice to a pitcher. I used a strainer when adding it to a pitcher because there were parts of the flesh from juicing.
  • Pour 2 cups of water into a pan on medium-high heat. Add in the sweetener and stir.
  • This will create a simple syrup. Continue to stir until the mixture is clear.
  • Remove from the heat and add it to the pitcher with the lemon juice. Stir and add additional water to taste/meet your lemonade preference.



  • The number of lemons you will need will vary based on the size of the lemons you use and how much juice you can get from each. Typically, I use 8-10 lemons.
  • The best cheap way to make this recipe is to pick up a bag of lemons from Costco. A bag is usually $6.
  • If you are having trouble juicing the lemons, place them in the microwave for 15-20 seconds. This will help soften them up.
  • Adjust this recipe to suit your taste and needs. If you like really sweet lemonade, add more sweetener.
  • You can heat the simple syrup in the microwave if you wish. Heat it until the mixture turns clear, timing will vary.
  • You can save a little time and work by using this monkfruit simple syrup from Lakanto instead of making your own.
  • You can make strawberry lemonade using 2 cups of fresh puréed strawberries.


Serving: 1cup | Calories: 13kcal | Carbohydrates: 2g | Fat: 1g