Craving something cool, creamy, and hydrating? This Watermelon Protein Smoothie is the ultimate summer refresher. Bursting with juicy melon, fresh mint, and just enough protein to power your morning or cool you down.

"This looks so refreshing on a hot summer day! I like the idea of adding healthy fats to it from an avocado. This looks like a smoothie I can try on my picky eater husband:)." - Teresa
A Quick Look At The Recipe
- ⏲️Ready In: 5 Minutes
- 👪Serves: 4 cups
- 🍽 Calories and Protein: 141 kcals and 14 grams of protein
- 📋 Main Ingredients: Watermelon, avocado, coconut water and strawberries
- 📖 Dietary Notes: Dairy-free, gluten-free, grain-free can be made paleo.
- ⭐ Why You'll Love It: It's cool, creamy, and naturally sweet, this refreshing watermelon mint smoothie keeps you hydrated and energized all summer long.
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This watermelon mint smoothie (with no banana!) is the summer refresher you didn’t know you needed. Packed with refreshing flavor and natural electrolytes, it’s like a cool breeze in a glass, perfect alongside these peanut butter chocolate banana bites for a post-playground recharge.
Staying hydrated in the summer heat is no joke (especially when you’re chasing loud, barefoot kids around), but this watermelon protein shake makes it feel easy. With watermelon being 92% water and coconut water offering a natural electrolyte boost, it’s a refreshing way to stay cool and energized, just like these low calorie mocktails. And if plain water isn’t cutting it, check out these tips to boost your water intake!
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💭Why You'll Love This Recipe
Easy to make: You only need six ingredients for this protein shake to come together.
Allergy friendly: The smoothie is naturally dairy-free, gluten-free, paleo, and Whole30-friendly.
Wonderful when pregnant: Mint helps curb that first-trimester nausea, and from a general standpoint, the coconut water has the electrolytes you need to stay hydrated.
Ingredients and Substitutions
- Watermelon: Fresh or frozen watermelon will work. If using frozen watermelon, the smoothie will come out thicker, but the "coolness" will last longer.
- Coconut water: One of the best things you can drink to rehydrate! Make sure to double-check that your brand doesn't have any added sugars.
- Fresh mint: A little goes a long way, but fresh mint works best! Of course, you can use basil instead for a different flavor, and if you have leftover from making dairy-free pesto sauce without pine nuts.
- Collagen powder: One of the cleanest protein sources, quality collagen powder is a great way to boost your protein intake and your gut health.
See the recipe card for full information on ingredients and quantities.
Flavor Variations
Berries: Any berries can work for the watermelon protein shake. For a switch-up, try using blueberries or a triple berry combo like in this gluten-free berry crumble without oats.
Citrus twist: Squeeze some fresh orange, lemon, or lime juice for big pick-me-up.
Expert Tips To Make It
Make sure to double-check that your coconut water doesn't have added sugar (lots do!). I personally use Buddha coconut water or Taste Nirvana.
If using fresh watermelon, place it at the bottom of the blender before the other ingredients. This helps it blend easily.
Both collagen powder and protein powder can work in the watermelon mint smoothie. However, the kind of protein powder you choose will alter the taste and texture slightly.
Mint is a natural way to boost your energy (perfect if you're tackling a summer bucket list!)! However, it's not awesome for breastfeeding moms as it can reduce milk supply. If this is you, just omit the mint and add some lime juice.
Adding a squirt of fresh lime juice gives it a great twist and pairs it perfectly with an Armenian cucumber salad.
Watermelon Protein Smoothie FAQs
Typically bright berries mix well with watermelon (strawberries and raspberries), along with tropical fruits like pineapple and mango, as well as bananas. Each one will bring a different texture and flavor to the watermelon smoothie.
Fresh mint will give the smoothie the best flavor. Mint is also wonderful for energy, clarity, and digestion, making it great to sneak into your diet.
Though fresh watermelon tastes great in smoothies, frozen watermelon brings a whole other element. It creates more of a refreshing, thick blend perfect on hot days.
Watermelon is a great choice for a protein shake because it's naturally hydrating. It pairs well with other fruits and is a great way to recover post-workout.

More Healthy Summer Recipes
If you tried this Watermelon Protein Smoothie Recipe or any other recipe on my blog, please leave a 🌟 star rating and let me know how it goes!

Strawberry Watermelon Protein Smoothie (Dairy-Free)
Video
Equipment
Ingredients
- 4 cups watermelon chopped
- ½ avocado
- 6-8 ice cubes
- ¼ cup coconut water
- ½ cup strawberries
- ⅔ mint leaves
- ¼ cup Collagen powder
Instructions
- Prep and chop your watermelon making sure there's no seeds.
- Add all the ingredients into the blender, starting with the watermelon first to make it easier for the machine.
- Blend all ingredients until smooth.
- Pour into jars and enjoy!
Notes
- Make sure to double-check that your coconut water doesn't have added sugar (lots do!). I personally use Buddha coconut water or Taste Nirvana.
- Frozen watermelon will make the smoothie thicker
- Mint is a natural way to boost your energy! However, it's not awesome for breastfeeding moms as it can reduce milk supply. If this is you, just omit the mint and add some lime juice.
Disclaimer:
Nutrition values are estimates only, using online calculators. Please verify using your own data"









Shelby S says
Perfect for a hot summer day. I love that i can use up the leftover, slughy kind of watermelon and still get a great use out of it!
Melissa @Real Nutritious Living says
So refreshing and healthy!
fitasamamabear says
Definitely a yummy summertime one!
Megan Stevens says
I like the idea of the avocado with the watermelon! This looks so creamy!
fitasamamabear says
Can;t go wrong with the nutrients in avocados 😀
Teresa says
This looks so refreshing on a hot summer day! I like the idea of adding healthy fats to it from an avocado. This looks like a smoothie I can try on my picky eater husband:).
fitasamamabear says
I add the fats to help stabilize the sugar and stay full/fueled- it also makes it creamy so win!
Daniela says
Everything about this smoothie screams summer! Looks delicious, refreshing and oh so healthy! Yum!
fitasamamabear says
It's definitely summertime perfect 😀