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    Home > Blog > Protein Shakes

    Watermelon Green Smoothie (Easy Recipe with Green Powder)

    Updated: Jan 27, 2025 · Published: Nov 26, 2023 · By Andréa Marchese · This post may contain affiliate links · Leave a Comment

    Jump to Recipe
    watermelon green smoothie.
    watermelon green smoothie with a text overlay.
    watermelon green drink next to a plate of watermelon slices and a scoop of green drink powder
    watermelon green smoothie with a text overlay.
    watermelon green smoothie with a text overlay.

    Nothing beats the revitalizing, thirst-quenching power of a delicious watermelon green smoothie. Packed with superfood power, this green smoothie recipe combines the hydrating power of watermelon with the nutrient-rich benefits of green powder. I have this delicious smoothie every morning, and it is a great way to start the day!

    watermelon green drink next to a plate of watermelon slices and a scoop of green drink powder

    For another refreshing fruit smoothie, try this strawberry collagen smoothie recipe!

    Jump to:
    • Ingredients
    • Equipment Needed
    • Instructions
    • Ingredient Substitutions
    • Recipe Variations
    • Storage Info
    • Pro Tips
    • FAQ
    • Recipe

    Ingredients

    ingredients for a watermelon green drink

    Frozen Watermelon 

    Fresh watermelon chunks, frozen to perfection, form the base of this hydrating smoothie. Watermelon's high water content not only keeps you hydrated but also contributes to a smooth texture. I either buy a seedless watermelon (whole) and cut it up to freeze, or buy the watermelon pieces already cut up at the supermarket. I put the watermelon chunks in a freezer ziploc bag and lay it flat until the watermelon pieces are frozen.

    Green Powder

    Using green powder is not only easier than using fresh leafy greens, the green powder is much more comprehensive in terms of ingredients and nutrients. It's an easy way to sneak in even more nutrients into your diet, especially when fresh greens might not always be readily available. And the combination of watermelon and green powder tastes great!

    front and back of a canister or green drink powder.

    By the way, this is *not* a sponsored post. I just love this smoothie and make it every day, so I'm sharing it here.

    Water

    Pure, hydrating water helps blend all the ingredients together seamlessly, ensuring you get that perfect consistency.

    Collagen (optional)

    For those looking to promote healthy skin, hair, and nails, collagen is an excellent addition. I use these marine collagen peptides (great in coffee, too!). Naked Marine Collagen is also an excellent choice.

    Chia Seeds (optional)

    Chia seeds are a great source of dietary fiber and healthy fats (source: Mayo Clinic article on chia seeds). They add a wonderful texture to this watermelon green smoothie and when combined with collagen powder, make a complete protein. (Chia seeds contain tryptophan, the amino acid missing from collagen to make a complete protein.)

    Equipment Needed

    • kitchen scale - I highly recommend using a kitchen scale. Less clean up than using measuring cups and spoons, and you always know exactly how much of an ingredient you are using.
    • high-speed blender - I love this smoothie blender that is easy to use, easy to clean, and has a small footprint. Read more about why I love this great smoothie blender
    • measuring cups and spoons (if not using a kitchen scale)

    Instructions

    1. Start by adding the frozen watermelon chunks to the blender cup. Then add the water, then the green powder.
    2. If you choose to include collagen and chia seeds, add them to the mix.
    3. Blend all the ingredients for about 30 seconds or until you achieve a smooth texture.
    4. Pour your watermelon green smoothie into a glass and enjoy! Or just pop a straw into the blender cup, like I usually do.
    watermelon green drink next to a plate of watermelon slices and a container of green drink powder

    Ingredient Substitutions

    • Fresh watermelon can also be used. In this case, add a few ice cubes to keep the smoothie cold.
    • Instead of water, you can use watermelon juice or even coconut water for a different flavor profile.
    • If your palate just can't handle green powder, try this red powder instead. Still full of superfoods, but without the green taste.

    Recipe Variations

    • Strawberry Watermelon Smoothie: Swap out a portion of the frozen watermelon for fresh or frozen strawberries for a strawberry twist.
    • Green Tea Infusion: Replace water with chilled green tea for an antioxidant-rich variation.
    • Creamy Watermelon Delight: Add a dollop of plain yogurt or Greek yogurt for a creamy smoothie with an added dose of probiotics.

    Storage Info

    While it's best enjoyed fresh, you can store it in the fridge for up to 24 hours. Just give it a good shake or stir before consuming.

    Pro Tips

    • For convenience, buy watermelon chunks already cut up at the supermarket. Transfer the watermelon chunks to a freezer ziploc bag and lay the bag flat in the freezer until the chunks are frozen.
    • Feel free to use more watermelon for an even sweeter smoothie!

    FAQ

    Can I have this smoothie on a regular basis for weight loss?

    This low calorie smoothie is a great choice as a morning pick-me-up or afternoon refresher as part of a weight loss plan. But please note, this should not be taken as a full meal replacement.

    Why do you suggest green powder instead of actual greens?

    I suggest green powder instead of actual greens for the convenience and for incredible nutritional profile in the green powder. front and back of a canister or green drink powder.

    What's the best way to incorporate this smoothie into a diet for a healthy lifestyle?

    Enjoying it as part of a balanced diet rich in fresh fruits, vegetables, and lean proteins is the best approach. This green smoothie is a great addition to a nutritious breakfast or a satisfying snack.

    Can I replace the green powder with fresh greens?

    Absolutely! Fresh spinach or kale leaves can be an excellent substitute for green powder.

    Can I add protein powder for an extra protein boost?

    I suggest collagen (plus chia seeds to make a complete protein) in this smoothie rather than protein shake powder. The collagen is tasteless and doesn't take away form the smoothie feel. Protein shake powder would make it foamy and creamy (with dairy protein) or grainy (with plant-based protein powder).

    Can I prepare this smoothie the night before and refrigerate it for the next day?

    Yes! While it's best enjoyed fresh, you can store it in the fridge for up to 24 hours. Just give it a good shake or stir before consuming.

    Is this smoothie suitable for those following a gluten-free diet?

    Yes, this watermelon green smoothie is naturally gluten-free and a wonderful option for those with gluten sensitivities.

    Recipe

    watermelon green drink next to a plate of watermelon slices and a scoop of green drink powder

    Watermelon Green Smoothie

    Andréa Marchese
    Delicious watermelon green smoothie recipe with fresh or frozen watermelon and nutrient-dense green powder. Refreshing and easy to make!
    5 from 1 vote
    Print Recipe Pin Recipe
    Prep Time 5 minutes mins
    Cook Time 0 minutes mins
    Total Time 5 minutes mins
    Servings 1 serving

    Equipment

    • kitchen scale
    • high speed blender

    Ingredients

    • 1 cup frozen watermelon 150g
    • ¾ cup water 180g
    • 1 scoop green powder 10g
    • 2 tablespoons collagen powder 13g (optional)
    • 1 tablespoon chia seeds 11g (optional)

    Instructions
     

    • Add the frozen watermelon to your blender cup. Then add the water, and then the green powder.
    • If you choose to include collagen and chia seeds, add them to the mix.
    • Blend for about 30 seconds or until smooth. Enjoy!

    Notes

    Nutrition data below does not include the collagen (50 calories, 12g protein) or the chia seeds (60 calories, 2g protein, 5g carbs, 3g fiber, 4g fat).

    Nutrition

    Serving: 1recipe | Calories: 87kcal | Carbohydrates: 19g | Protein: 1g | Fiber: 2g | Sugar: 9g
    Tried this recipe?Please consider leaving a review!

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    Hi, I'm Andréa! I’ve been baking with protein powder since 2013, and I can give you all the top tips for creating delicious high protein snacks, desserts, and more.

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