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Low-Carb Watermelon & Lime Sorbet

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Summer and watermelon are almost synonyms. I can't imagine summer without fresh chilled watermelon! A couple of days ago, I asked my Facebook followers if there is any cocktail they are missing on their low-carb journey. Well, watermelon sorbet is definitely not a cocktail recipe but it's great for hot summer days like these!

To make this low-carb and sugar-free sorbet I used my ice cream maker but you can simply freeze it and churn every 30 minutes until you get the desired consistency of sorbet.

Although watermelon has a high Glycemic Index (GI = 72), it has a very low Glycemic Load, which measures how much insulin will be released by your body for a given food measured in standard portions. You always need to consider serving size to get the best estimate of how it will affect your blood sugar levels.

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Other health benefits of watermelon are:

  • it's very high in water (more than 90%) which makes it filling
  • it's relatively low in net carbs and calories (7.2g net carbs and 30 kcal per 100g)
  • it's high in vitamin A
  • it contains lycopene, a carotenoid with antioxidant activity and has potential cancer-fighting abilities

Remember, only avoid watermelon or any fruit if your carbs limit is very low (20 g or less of net carbs a day).

Hands-on Overall

Serving size about 2 scoops/ 85 g/ 3 oz

Allergy information for Low-Carb Watermelon & Lime Sorbet

✔  Gluten free
✔  Dairy free
✔  Nut free
✔  Nightshade free
✔  Pork free
✔  Avocado free
✔  Coconut free
✔  Fish free
✔  Shellfish free
✔  Beef free
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Nutritional values (per serving, about 2 scoops/ 85 g/ 3 oz)

Net carbs6 grams
Protein0.5 grams
Fat0.1 grams
Calories25 kcal

Calories from carbs 89%, protein 7%, fat 4%

Total carbs6.4 gramsFiber0.3 gramsSugars4.8 gramsSaturated fat0 gramsSodium1 mg(0% RDA)Magnesium8 mg(2% RDA)Potassium94 mg(5% EMR)

Ingredients (makes 8 servings)


  1. Cut the watermelon in cubes and remove all the seeds. Place in a blender together with freshly squeezed lime juice and stevia to taste. Pulse until smooth. Low-Carb Watermelon & Lime Sorbet
  2. Pour into the ice-cream maker and process according to the manufacturer's instructions. Mine took just about 45 minutes. This varies based on the make of your ice-cream maker (30-60 minutes) and also depends how solid you want the sorbet to be. If you don't have an ice-cream maker, simply place the diced watermelon in the freezer for at least 3 hours and blend until smooth with lime juice and stevia. I wanted mine to be really frozen, so it took 45 minutes. Low-Carb Watermelon & Lime Sorbet
  3. When done, using a rubber spatula, put into small containers and place in the freezer. Low-Carb Watermelon & Lime Sorbet
  4. This will help you with portion control and prevent you from eating all the ice-cream in one go. If you serve the sorbet straight away, garnish with lime wedges and fresh mint. Enjoy! Low-Carb Watermelon & Lime Sorbet

Ingredient nutritional breakdown (per serving, about 2 scoops/ 85 g/ 3 oz)

Net carbsProteinFatCalories
Watermelon, fresh
5.4 g0.5 g0.1 g23 kcal
Lime (juice), fresh
0.7 g0 g0 g2 kcal
Stevia extract (SweetLeaf or NuNaturals, natural low-carb sweetener)
0 g0 g0 g0 kcal
Total per serving, about 2 scoops/ 85 g/ 3 oz
6 g0.5 g0.1 g25 kcal
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Martina Slajerova
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Martina Slajerova

I changed the way I ate in 2011, when I was diagnosed with Hashimoto’s, an autoimmune disease that affects the thyroid. I had no energy, and I found it more and more difficult to maintain a healthy weight.

That’s when I decided to quit sugar, grains, and processed foods, and to start following a whole-foods-based ketogenic approach to food.

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Comments (4)

Hey great recipe as usual 😊
Could I do something similar with berries, maybe adding some water because I suppose berries don't have the same water content than watermelon.
I'm really craving some blueberry or strawberry sorbet lately but all the recipes I find use either bananas or real syrup (sugar + water) and I don't believe that fiber syrup would work ... or would it ? But anyway the quantities that I would have to use are way too sweet for my taste and too expensive


Thank you Stephanie! YEs, I would add some water if you want to use berries (especially strawberries). You may like these popsicles (you can skip the cheesecake layer or use more berries): Sugar-Free Red, White and Blue Berry Popsicles


Love how simple it is! I don't have an ice-cream maker and it worked well just blending frozen watermelon! Thanks for all the amazing posts 😊


Thanks, there will be more summer recipes soon! 😊