Low-Carb Watermelon Sorbet

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Low-Carb Watermelon SorbetPin recipeFollow us 125.0k

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 and will be included in my next recipe. Stay tuned, it's coming soon! :-)

Hands-on Overall

Nutritional values (2 scoops)

Net carbs6.1 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, ~16 scoops)

Note: When looking for ingredients, try to get them in their most natural form (organic, without unnecessary additives).


  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 Sorbet
  2. Pour into the ice-cream maker (I like this one and process according to the manufacturer's instructions.
    Note: 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. Low-Carb Watermelon Sorbet
  3. I wanted mine to be really frozen, so it took 45 minutes. Low-Carb Watermelon Sorbet
  4. When done, using a rubber spatula, put into small containers and place in the freezer. 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 Sorbet

Watermelon and Glycemic Index…

Although it has a high Glycemic Index (GI = 72), it has a very low Glycemic Load (GL = 4).

GL, which measures how much insulin will be released by your body for a given food measured in standard portions. This is different to GI, which doesn't take the serving size into account. As a result, some foods with high GI could have low GL. Therefore, GL is recommended as the best measure for carbs.

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 (20g or less of net carbs a day).

Low-Carb Watermelon Sorbet

Ingredient nutritional breakdown (2 scoops)

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 2 scoops
6.1 g0.5 g0.1 g25 kcal
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Martina Slajerova
Creator of KetoDietApp.com

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! 😊