Low Carb Blueberry Protein Smoothie! Made with whey protein, flavoured collagen, and a handful of fresh blueberries, this smoothie bursts with a vibrant hue that just screams delicious!
It's one of the best low-carb smoothies, perfectly refreshing, and dangerously easy to whip up. Whether itโ€™s for a quick breakfast, post-workout boost, or an easy replacement meal, this smoothie is your go-to for something healthy, tasty, and packed with protein!
Two banana collagen smoothies in glasses with lots of blueberries around it and two yellow straws in each glass.

Am I the only one who thinks smoothies should be called “anytime” drinks? Seriously, this Low Carb Blueberry Protein Smoothie is so good it could pass for breakfast, post-workout fuel, or even a sneaky dessert! 🫐

The best part? You get all that creamy, fruity goodness with a boost of protein, and you won’t even notice it’s packed with collagen too! It’s a super refreshing and filling drink that hits the spot, and even if you’re not a huge smoothie fan, this one might just change your mind!

Blueberry Protein Smoothie with Collagen ingredients all laid out with labels so you know what is the shake.

The Ingredients

  • Cottage Cheese: Written above in the ingredients image, but not in the recipe. Adding cottage in smoothies adds a healthy dose of extra protein, creaminess, and makes the smoothie fluffy. I have added this as an ingredient option as some of you might need the extra boost cottage cheese brings.
  • Whey Protein Isolate (WPI): Choose flavored or unflavored WPI depending on your taste, vanilla protein powder would be delicious. If you’re not using a flavoured protein powder, add sweetener to taste. Plant-based protein powders can also be used if you prefer.
  • Eggs: The eggs add creaminess and extra protein. If you’re not a fan, you can skip them without sacrificing texture. I am a HUGE fan of eggs in my shakes. If you are concerned about raw eggs leave them out or pasteurise them.
  • Collagen: Adds a wonderful texture while providing numerous health benefits. I used Banana flavoured Collagen. This mix includes additional ingredients like inulin, whey protein isolate, MCT Oil, and a host of vitamins and minerals. In this smoothie, it adds a velvety texture, making it even creamier and more delicious.
  • Blueberries: Use fresh or frozen or any berry you love.
  • Add-ins: If using plain unflavoured protein powder add sweetener if you prefer. Add vanilla extract, and any other extracts or flavoured collagen or WPI you love!

How To Make A Smoothie

Place all ingredients into a high speed blender and mix until smooth and creamy. It is that easy!

A glass with a banana protein shake in it with a scattering of blueberries in front of it.

Variations

Berry Blast Smoothie Bowl: Skip the cup and turn your smoothie into a bowl! Blend extra frozen blueberries, a handful of spinach, a spoonful of Greek yogurt and protein powder for a creamier texture. Serve in a bowl topped with chia seeds, shredded coconut, and a sprinkle of low-carb granola.

Coconut Blueberry Protein Shake: Swap out the water for coconut milk to give your smoothie a tropical twist. Add unsweetened shredded coconut and a squeeze of lime for extra flavour. Sounds great, doesn’t it?

Chocolate Berry Protein Smoothie Recipe: Add a scoop of chocolate protein powder and a spoonful of cacao nibs for a rich, indulgent treat. Throw in a few extra ice cubes and blend until thick and creamy—dessert vibes in a glass!

Dairy-Free Almond Blueberry Smoothie: For a dairy-free version, swap whey protein for vegan protein powder, and use unsweetened almond milk or oat milk (not keto-friendly) instead of water. Add a teaspoon of almond butter or peanut butter protein and a handful of ice for a deliciously nutty and filling smoothie.

What to Serve with a Protein Smoothie

This smoothie pairs beautifully with a handful of nuts, a side of avocado toast, or even some keto-friendly granola for an extra crunch. It’s perfect for a quick breakfast on-the-go or as a light meal between workouts.

Frequently Asked Questions

Can I make it ahead?

The berry protein shake can be made ahead of time or even frozen. It might have some separation, so give it a good shake before consuming.

Can I swap out the protein powder?

Absolutely! You can replace whey protein isolate with egg white protein or a low-carb vegan protein. Just be mindful of any carb content in your chosen alternative.

Is collagen necessary in the smoothie?

Not at all. While collagen may benefit skin, hair, nails, and joints, it adds a creamy texture to the smoothie that’s hard to beat.

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A blueberry and banana smoothie photographed over the top of the glass.

Next Recipes To Try

I love that this smoothie is high in protein (51g of protein per serve). Here are just a few more delicious keto shake recipes to try soon.

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Two Collagen Protein Shakes with blueberries on a skewer coming out the top.

Blueberry Protein Smoothie

Low Carb Blueberry Protein Smoothie! Made with whey protein, flavoured collagen, and a handful of fresh blueberries, this smoothie bursts with a vibrant hue that just screams delicious!
It’s one of the best low-carb smoothies, perfectly refreshing, and dangerously easy to whip up. Whether it’s for a quick breakfast, post-workout boost, or an easy replacement meal, this smoothie is your go-to for something healthy, tasty, and packed with protein!
5 from 1 vote
Prep Time: 5 minutes
Cook Time: 0 minutes
Total Time: 5 minutes
Course: Breakfast or Drink
Cuisine: American
Diet: Diabetic, Gluten Free
Recipe Category: Low Carb
Calories: 298kcal
Author: Megan Ellam
Servings: 1 serve
Tap or hover over number to scale ingredients
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Equipment

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Ingredients 

  • 1 cup water or see below for options
  • 1 scoop (30 g) whey protein isolate see variations
  • 2 scoops Flavoured Collagen see variations, , I used Banana
  • 2 large eggs optional
  • 1 cup ice cubes or see below for options
  • 6 blueberries or your choice of fruit or flavour

Instructions

CONVENTIONAL METHOD

  • Place all ingredients into a blender and mix until smooth and creamy.

THERMOMIX METHOD

  • Place all ingredients into mixer; mix 1 min/speed 10.

Notes

  • Ingredient Tips: If you’re not using collagen, substitute with 1/2 cup cottage cheese, ricotta, or Greek yogurt for a creamy texture.
  • Whey protein isolate can be swapped with egg white protein or low-carb vegan protein for a dairy-free option. Please avoid whey concentrate or casein powders.
  • Add a boost of probiotics or prebiotics if you wish. I like to add a tablespoon of Acacia Fibre to mine.
My pictured blueberry protein shakes with collagen were made using Banana Collagen from Collagen Co and I used Amino Z Unflavoured WPI.
  • Storage Tips: Store any leftovers in an airtight container for up to 24 hours in the fridge. Shake or stir before enjoying.
Ice cubes – instead of plain ice cubes frozen infused teas, coffee, flavoured water etc. can be used.

Your Own Notes

Nutrition

Serving: 1serve | Calories: 298kcal | Carbohydrates: 3g | Protein: 51g | Fat: 9g | Saturated Fat: 3g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 3g | Trans Fat: 0.03g | Cholesterol: 327mg | Sodium: 149mg | Potassium: 127mg | Fiber: 0.2g | Sugar: 1g | Vitamin A: 479IU | Vitamin C: 81mg | Calcium: 64mg | Iron: 2mg | Magnesium: 16mg | Net Carbs: 3g
Tried this recipe?Mention @meganellam or tag #madcreations!

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One response to “Low Carb Blueberry Protein Smoothie”

  1. Megan Mad Creations Hub

    5 stars
    A new favourite smoothie for me!

5 from 1 vote

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