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Keto Lemonade

4.84 from 12 votes
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This recipe may contain Amazon or other affiliate links. As an Amazon Associate I earn from qualifying purchases.

This Keto Lemonade recipe is an easy sugar-free lemonade recipe ready in 10 minutes and made with only 3 ingredients. Plus, this recipe is diabetes-friendly and vegan. 

Keto Lemonade

What’s A Keto Lemonade?

A Keto Lemonade is the sugar-free version of the classic lemonade.

The traditional lemonade recipe combines lemon juice with white sugar or simple syrup. They typically contain about 25 grams of net carbs per serving.

So if you are on a keto diet, you need to have a sugar-free, low-carb recipe to enjoy a delicious summer lemonade.

Why You’ll Love This Recipe

This Keto Lemonade is a perfect refreshing summer drink without sugar, but it’s also:

  • Gluten-Free
  • Low-Carb
  • Keto (2.7g Net Carbs)
  • Ready in under 10 Minutes
  • Only 2 Ingredients (and ice)
Keto Lemonade

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How To Make Keto Lemonade

Making this lemonade keto version is as easy as the classic lemonade.


All it takes is:

  • Lemons – you need a few fresh yellow lemons. There are thousands of lemon varieties that exist and most would work for this recipe, but I prefer relatively small egg-sized ones. Lemons are keto-friendly fruits that also bring a lot of Vitamin C and electrolytes.
  • Powdered Sweetener – while classic lemonade requires powdered sugar, this recipe uses powdered sugar-free sweetener. You can use any powdered sweetener such as powdered erythritol, or powdered allulose. If you need to convert sweeteners to have the right sweetness, use my Sweetener Converter.
Sugar free lemonade


The best way to make this cold beverage is to use heat.

The reason I recommend heating water is to make sure the powdered sweetener has fully dissolved and this process works much faster and better at higher temperatures.

Bring one cup of water to a light boil in a pan over medium heat and pour the powdered sweetener. Stir until the sweetener has fully dissolved, meaning you can’t see any small grains of sugar.

Remove the saucepan from the heat. Cut the lemons in half and squeeze the juice out with a lemon squeezer or a fork. Read my method to do so without a juicer.

Pour the fresh lemon juice and the rest of the cold water.

Transfer the keto lemonade to a jug pr pitcher and store it in the fridge to cool down.

Keto Lemonade recipe


Add about half a dozen of ice cubes into a large tumbler glass and pour the cold homemade lemonade on top of it.

Slice two slices of fresh lemon and garnish the glass to boost the lemon flavor. You can also add fresh mint leaves for a green touch.

Storage Instructions

You can store this low-carb lemonade for up to a week in the fridge.

Frequently Asked Questions

Which Sweeteners Can I Use For Keto Lemonade?

I recommend using powdered sweetener to make dissolving it easier. You can use Swerve, any stevia erythritol blend, or monkfruit erythritol blend.
I don’t recommend using liquid stevia, it’s much trickier to dose.

Can I Add Other Fruits To Lemonade?

Yes, you can decorate the lemonade with raspberries, blueberries, or strawberries.

Can I Make A Lime-onade?

Yes, you can make a keto lime-onade by using lime juice instead of lemon juice.

Sugar free lemonade

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Keto Lemonade

Keto Lemonade

2.7gNet Carbs
This Keto Lemonade is an easy, sugar-free lemonade recipe perfect to refresh this summer.
Prep: 10 minutes
Total: 10 minutes
Yield: 6 servings (1/2 cup)
Serving Size: 1 serving (1/2cup)
4.84 from 12 votes


To serve

  • 1 cup Ice Cubes
  • 2 slices Lemon
This recipe may contain Amazon or other affiliate links. As an Amazon Associate I earn from qualifying purchases.


  • In a saucepan add 1 cup of cold water and powdered sweetener. Bring to a light boil, stir and cook for a few minutes until the sweetener has dissolved.
  • Remove from heat, stir lemon juice and remaining cup of water.
  • Store in a jug in the fridge to cool down before serving.
  • Serve over ice cubes with fresh lemon slices.

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Nutrition1 serving (1/2cup)
Yield: 6 servings (1/2 cup)


Serving: 1 serving (1/2cup)Calories: 8.9 kcalCarbohydrates: 2.8 g (1%)Fiber: 0.1 gNet Carbs: 2.7 gProtein: 0.1 gFat: 0.1 gSaturated Fat: 0.1 g (1%)Polyunsaturated Fat: 0.1 gMonounsaturated Fat: 0.1 gSodium: 2.4 mgPotassium: 41.9 mg (1%)Sugar: 1 g (1%)Vitamin A: 2.4 IUVitamin C: 15.7 mg (19%)Calcium: 3.6 mgIron: 0.1 mg (1%)Magnesium: 2.8 mg (1%)Zinc: 0.1 mg (1%)
Carine Claudepierre

About The Author

Carine Claudepierre

Hi, I'm Carine, the food blogger, author, recipe developer, published author of a cookbook and many ebooks, and founder of Sweet As Honey.

I have an Accredited Certificate in Nutrition and Wellness obtained in 2014 from Well College Global (formerly Cadence Health). I'm passionate about sharing all my easy and tasty recipes that are both delicious and healthy. My expertise in the field comes from my background in chemistry and years of following a keto low-carb diet. But I'm also well versed in vegetarian and vegan cooking since my husband is vegan.

I now eat a more balanced diet where I alternate between keto and a Mediterranean Diet

Cooking and Baking is my true passion. In fact, I only share a small portion of my recipes on Sweet As Honey. Most of them are eaten by my husband and my two kids before I have time to take any pictures!

All my recipes are at least triple tested to make sure they work and I take pride in keeping them as accurate as possible.

Browse all my recipes with my Recipe Index.

I hope that you too find the recipes you love on Sweet As Honey!

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    5 Thoughts On Keto Lemonade
  1. 5 stars
    I had a LOT of lemons to use up so made this lemonade. So good and refreshing on a hot summer day. However, several hours later it did not agree with me and kept me up all night. I used allulose with monkfruit and something did not set well unforunately.

  2. 5 stars
    While my lemonade must not taste sweet, meaning I use less of the simple syrup, your recipe is spot on for everything else! I love lemonade that is refreshing but do not like sweetened beverages of any kind. The simple syrup I made from your recipe will make a gallon or more of lemonade for me, the way I like it. But I have been looking for someone who had the rest of the recipe right? And you indeed fulfilled my needs. Thank you so much!!

  3. 5 stars
    I love, love, LOVE lemonade!! It’s my favorite drink, besides water!! I’m a lemonade “snob”!! Love me some good lemonade and the more the pulp, the better (yes, I click the lid from my Chick-fil-a lid!!!!) I’m going to try your recipe today. I’m so excited!! I’m post my results!!


The recipes, instructions, and articles on this website should not be taken or used as medical advice. You must consult with your doctor before starting on a keto or low-carb diet. The nutritional data provided on Sweetashoney is to be used as indicative only.

The nutrition data is calculated using WP Recipe Maker. Net Carbs is calculated by removing the fiber and some sweeteners from the total Carbohydrates. As an example, a recipe with 10 grams of Carbs per 100 grams that contains 3 grams of erythritol and 5 grams of fiber will have a net carbs content of 2 grams. Some sweeteners are excluded because they are not metabolized.

You should always calculate the nutritional data yourself instead of relying on Sweetashoney's data. Sweetashoney and its recipes and articles are not intended to cure, prevent, diagnose, or treat any disease. Sweetashoney cannot be liable for adverse reactions or any other outcome resulting from the use of recipes or advice found on the Website.