Strawberry Watermelon Smoothie With Collagen


Last Updated: Feb, 19, 2026 by Mimi Council | This post may contain affiliate links.

This 5 ingredient Strawberry Watermelon Smoothie With Collagen is the perfect fusion of juicy strawberries and light and hydrating watermelon with the addition of grassfed collagen. With every sip, you’ll be transported to a state of tropical bliss with 9 grams of protein!

If you’re looking more delicious smoothie recipes, check out some of my other favorites like Berry Protein Smoothie Without Banana, Healthy Orange Julius With Protein, or Tropical Cranberry Smoothie.

strawberry watermelon smoothie with collagen in a glass with a watermelon slice and straw on kitchen counter.

A Quick Look At The Recipe

  • Recipe Name: Strawberry Watermelon Smoothie With Collagen
  • Ready In: 5 minutes
  • Makes: 1 serving
  • Main Ingredients: watermelon, collagen, coconut milk
  • Flavor Profile: light and refreshing watermelon with sweet berry
  • Dietary Info: gluten free, dairy free, eggless, no seed oils, vegan swap available
  • Difficulty: Easy!
  • Why You’ll Love It: healthy treat with 9 grams protein that will quench your thirst and fill you up

Why You'll Love This Recipe

  • Organic Smoothie: I use organic ingredients, making this vegan smoothie so much better than one from a chain smoothie shop!
  • Protein Smoothie: I add in grassfed collagen to add 9 grams of protein to this watermelon smoothie! This part is optional, but it makes this a much more filling snack.
  • Vegan Friendly: This organic smoothie is naturally vegan (minus the collagen) as it's just organic coconut milk and fruit! So, feel free to leave it out for a vegan smoothie.
  • Light and Sweet: The combination of watermelon and strawberries makes a light and sweet vegan smoothie that's perfect for summer, just like Lemon Blueberry Smoothie.
Jump to:

Ingredients

individual ingredients for strawberry watermelon smoothie with collagen laid out against a white background.
  • Watermelon: I use organic frozen watermelon for a thicker smoothie, but fresh is also okay too. You may want to use less liquid if using fresh.
  • Strawberries: You can use fresh or frozen, either works.
  • Mango: I love organic frozen mango for thickness and natural sweetness. If you don't have mango, you can use 1 whole banana instead.
  • Coconut Milk: I use organic coconut milk for flavor in this tropical smoothie, but regular cow's milk or your favorite nondairy milk also works.
  • Collagen: Totally optional, but if you want added protein I love using organic grassfed collagen for a boost! Leave this out for a vegan smoothie.

*For a full list of ingredients and measurements, visit the recipe card below.

Tips

  • You can use fresh or frozen watermelon either works. I like to freeze watermelon if I get a large one, using frozen fruit can also create a thicker smoothie.
  • Strawberries can also be fresh or frozen.
  • I highly recommend using frozen mango as this will help thicken the smoothie.
  • Use any kind of milk you like, though I think coconut has the best flavor for this tropical smoothie.
  • Collagen is optional, feel free to use your favorite protein powder if you like or skip it for a vegan smoothie.

How to Make a Strawberry Watermelon Smoothie With Collagen

ingredients for strawberry watermelon smoothie with collagen in a glass blender on a white marble counter.
  1. Add the watermelon, strawberries, mango, coconut milk, and collagen to a blender.
blended strawberry watermelon smoothie in a glass blender on a white marble countertop.
  1. Blend on high until smooth and creamy. Feel free to adjust the liquid to get your desired consistency.
woman holding a glass of strawberry watermelon smoothie with a watermelon slice and straw.

Serving Ideas

Strawberry Watermelon Smoothie With Collagen FAQ's

Why use frozen fruit for smoothies?

Frozen fruit will provide a thicker and creamier texture. Fresh fruit will release water much quicker, so if you use fresh fruit your smoothie may be thinner and more watery than if you use frozen. So, if you are using fresh fruit, you will probably need less milk to achieve the same thick texture that you would with frozen.

Can I use another kind of berry?

Yes! Feel free to swap the strawberries for raspberries or blackberries (both of which would be delicious!).

woman holding a strawberry watermelon smoothie with a watermelon slice and straw in the kitchen.

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strawberry watermelon smoothie with collagen in a glass with a watermelon slice and straw on kitchen counter.

Strawberry Watermelon Smoothie With Collagen

Mimi Council
This Strawberry Watermelon Smoothie With Collagen has only 5 ingredients and will transport you to a tropical bliss anytime you make it! With 9 grams of protein, this tropical smoothie is a filling and delicious snack!
5 from 1 vote
Prep Time 5 minutes
Total Time 5 minutes
Course Drink
Cuisine American
Makes 1 smoothie
Calories 264 kcal

Equipment

  • Blender

Ingredients
  

  • 1 ½ cups frozen watermelon chunks
  • ½ cup frozen strawberries
  • 1 cup frozen mango
  • ¾ to 1 cup coconut milk (start with less for a thicker smoothie)
  • 1 tablespoon grassfed collagen (optional)

Instructions
 

  • Add the watermelon, strawberries, mango, coconut milk, and collagen to a blender.
  • Blend on high until smooth and creamy. Feel free to adjust the liquid to get your desired consistency.

Video

YouTube video

Notes

Tips
  • You can use fresh or frozen watermelon either works. I like to freeze watermelon if I get a large one, using frozen fruit can also create a thicker smoothie.
  • Strawberries can also be fresh or frozen.
  • I highly recommend using frozen mango as this will help thicken the smoothie.
  • Use any kind of milk you like, though I think coconut has the best flavor for this tropical smoothie.
  • Collagen is optional, feel free to use your favorite protein powder if you like or skip it for a vegan smoothie.
High Altitude – Follow the recipe as noted.

Nutrition

Calories: 264kcalCarbohydrates: 53gProtein: 9gFat: 5gSaturated Fat: 3gPolyunsaturated Fat: 0.3gMonounsaturated Fat: 0.3gSodium: 23mgPotassium: 643mgFiber: 6gSugar: 45gVitamin A: 3091IUVitamin C: 121mgCalcium: 119mgIron: 1mg
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One response to “Strawberry Watermelon Smoothie With Collagen”

  1. Mimi Council says:

    5 stars
    The best treat when it’s hot outside!

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