Keto Strawberry Lemonade
Published August 1, 2020 • Updated February 3, 2026
This post may contain affiliate links. See my disclosure policy.
If you like the sweeter things in life, you'll love this sugar-free strawberry lemonade. Fresh strawberries and lemon juice, sweetened with your favorite keto-friendly sweetener instead of sugar.
Ingredients
1 pint fresh strawberries -
4 cups of water
-
1 cup fresh lemon juice or lemon juice concentrate
-
1/2 to ¾ c confectioners Swerve or use sweetener of choice
-
two pinches of salt
Step by Step Instructions
Step by Step Instructions
Cook strawberries
Add strawberries to a sauce pan and add 1/4 cup of water. Cook over medium heat until strawberries have released most of their juices. Remove from heat and let cool.
Strain strawberries
Push strawberries through a fine meshed sieve, strainer or cheesecloth to collect the strawberry juice. Discard the pulp.
Prepare the lemonade
Using a juicer or a citrus squeezer, squeeze the juice out of the lemons until you have 1 cup of freshly squeezed juice. Strain out lemon seeds and pulp by pouring the fresh lemon juice through a strainer.
Nutrition disclaimer
The nutrition information provided is an estimate and is for informational purposes only. I am a Doctor of Pharmacy (Pharm.D.); however, this content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always consult your physician or other qualified health provider before making any lifestyle changes or beginning a new nutrition program.
Your Macros. Your Recipes. Calculated in 60 Seconds.
Get personalized keto macros and instantly see which recipes fit your targets. No more guessing what to eat.
Get My Macros + Recipes →Frequently Asked Questions
Can I use frozen strawberries instead of fresh ones?
Yes, frozen strawberries work fine. Thaw them first and drain the excess liquid before blending to keep your lemonade from getting too watery.
What can I substitute for Swerve if I don't have it?
Use any sugar-free sweetener: erythritol, monk fruit, stevia, allulose. Just adjust the quantity to taste, as sweetness levels vary between brands.
How long can I store the Keto Strawberry Lemonade?
Store this lemonade in an airtight container in the fridge for up to 3 days. Give it a good stir before serving, as the ingredients will settle.
Is there a way to make this recipe less tart?
Sure! Reduce the amount of lemon juice to suit your taste. Start with 3/4 cup and adjust from there, adding more sweetener if needed.
Can I add other fruits to this recipe?
Yes, feel free to experiment with other berries like raspberries or blueberries. Just keep the proportions similar to maintain the flavor balance!
One of my favorite drinks to order as a kid was strawberry lemonade. I loved the sweetness mixed with the tartness of the lemon. It’s easy to make a sugar-free version at home. Both lemon and strawberries fit into a low-carb diet since they’re naturally lower in carbs. For sweetness, I use a sugar-free sweetener. This lemonade was made for front porch sipping on a hot summer day.
Yes, lemons are fine. I use a squirt of lemon juice while cooking to add acidity to recipes. Lemons only have 3.4 grams net carbs each, so they fit easily into your macros.
Strawberries don’t have many carbohydrates compared to other fruits. Strawberries have 8.7 net carbs per cup of chopped berries. This recipe calls for about 2 cups of berries for the entire pitcher, so you only get a small amount of carbs per serving from the strawberries.
My daughter's birthday is next Saturday and she asked for a pink lemonade, so I want to make this for her party. The recipe makes 6 servings but I'm feeding closer to 20. When I scale up the strawberries that much, can I cook them all in one pot or is it better to do smaller batches? I'm also nervous about the Swerve. I've heard it can get bitter when you use a lot. Would I scale the 1/2 cup straight up, or should I start low and taste as I go?
Made this four times now, and somewhere around batch three I switched to frozen strawberries instead of fresh (it's February, fresh ones taste like cardboard) and somehow the flavor got stronger, not weaker. Still messing with the Swerve amount but I'm not going back to fresh until at least June.
Frozen in winter is the better choice. Flash frozen at peak means stronger flavor than February strawberries at the grocery store. For Swerve I usually start at 1/2 cup and taste before adding more.
If I want to use liquid allulose, can you tell me how much I should use or do I just keep pouring it in to taste?
Start at 1/3 cup and taste after blending. Liquid allulose and confectioners Swerve are pretty close in sweetness so it shouldn't need much adjusting.
I really liked this drink. I used swerve and it tasted really good.
Swerve blends in so cleanly for this one. If you used the granular, try the confectioners version next time. Even smoother.