Low Carb Keto Protein Shake

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When you’re looking for a low carb keto protein shake that’s thick, creamy, and fruity, add this one to your list! It’s made with just 7 basic ingredients and is ready for slurping in a matter of minutes.

Are Protein Shakes Keto?

There are keto friendly protein shakes out there, but many of them are filled with artificial preservatives and processed ingredients — and many other protein shakes are not suitable for a keto diet at all, as they are loaded with sugar. That’s why I prefer to make my own homemade sugar-free protein shakes.

While I’m not a big fan of meal replacement shakes instead of actual keto meals, some people do have success with keto protein shakes for weight loss. And even if you’re not replacing a meal with this shake, it’s totally delicious as a snack or light keto breakfast.

Unlike most shakes, it’s not filled with excess sugar, carbs, or processed ingredients. Instead, we’re using berries to flavor and sweeten (the best low carb fruit!), along with Wholesome Yum Keto Simple Syrup. It has a neutral taste, zero net carbs, and is perfect for sweetening all kinds of keto drinks.

Low carb protein shake with keto simple syrup.

Why You’ll Love This Keto Protein Shake Recipe

  • Delicious triple berry flavor
  • Thick and creamy
  • Just 7 simple ingredients, with nothing artificial
  • Ready in 5 minutes
  • Low carb, keto friendly, gluten-free, and dairy-free
  • 12.4 grams of protein per serving
  • Great protein-rich snack after a workout
Two low carb protein shakes in glasses.

Ingredients You’ll Need

This section explains how to choose the best ingredients for keto protein shakes, what each one does in the recipe, and substitution options. For measurements, see the recipe card below.

  • Berries – I used a combination of strawberries, raspberries, and blueberries. Other keto fruit, such as avocado, can also be added. For an even thicker smoothie, use frozen berries.
  • Collagen Protein Powder – I like using this collagen or this one, but any protein powder you like (whey protein, pea protein, etc.) is fine. Just make sure it is sugar-free and has zero carbs. I use 3/4 cup powder for the entire keto protein shake recipe, which is about 6 scoops (1 per serving).
  • Full-fat Coconut Milk – Makes the low carb protein shake thick, rich, and creamy, without dairy. You can use other keto milk options, such as unsweetened almond milk or hemp milk, but the shake will be less thick.
  • Wholesome Yum Keto Simple Syrup – Sweetens the low carb protein shake with zero net carbs, zero aftertaste, and zero gritty texture. You can also use Besti Powdered instead, which dissolves easily, even in cold drinks like this one. Most other keto sweeteners will not dissolve fully, leaving a gritty texture and uneven sweetness. The smoothie is not sweet enough for most people without any sweetener added, but you can certainly try it (and add some in later if you change your mind!).
  • MCT Oil Powder – Optional, but adds a boost of healthy fats for keto, while being more gentle on the stomach than regular MCT oil. If you prefer, you can use melted coconut oil instead.
  • Lemon Juice – Brings out the sweetness in the berries.
Keto protein shake ingredients.

How To Make A Keto Protein Shake

You may not need detailed instructions for how to make homemade low carb protein shakes, but in case you do…

Simply blend! Place all ingredients in a blender and blend until smooth. Adjust sweetener to taste as needed.

Sugar-free protein shake in a blender.
Low Carb Protein Shake Variations

Low Carb Protein Shake Variations

  • Swap out the fruit. We’re using berries here for a low carb protein smoothie, but if that’s less important, feel free to swap some or all of them for a different keto fruit. You’ll need 6 cups no matter what type you choose.
  • Swap out the milk. We’re using canned coconut milk to make the smoothie nice and thick, but you could also use heavy cream, almond milk, or even hemp milk.
  • Add nut butter. This is great for an extra thick smoothie and a bit more protein, too. Try almond butter, peanut butter, or for a nut-free option, sunflower seed butter.
  • Add seeds. Chia seeds or flax seeds add omega 3s and can thicken the smoothie more, or you can sprinkle them on top.
  • Add yogurt. A great way to add probiotics and even more protein, plus it ups the tart flavor. I like to make my own sugar-free yogurt.
  • Add chocolate. If you want a chocolate protein smoothie, you can swap some of the unsweetened cocoa powder in my chocolate peanut butter smoothie recipe with unsweetened chocolate protein powder.
  • Add avocado. It’s a great boost of healthy fats, and you won’t even taste it in a smoothie. Plus, it thickens as well.

Storage Instructions

  • Store: Keep homemade keto protein shakes in the refrigerator. Give them a blend or shake before serving.
  • Freeze: Pour in a single serving jar, leaving some space at the top to leave room for the low carb shake to expand as it freezes. Thaw overnight in the refrigerator, and shake or blend before serving.
Low carb protein shakes in glasses with berries in background.

More Keto Shake Recipes

If you like protein smoothie recipes like this one, you might also like some of these other keto smoothies:

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Tap on the times in the instructions below to start a kitchen timer while you cook.

  1. Puree all ingredients in a blender, until smooth.

  2. Adjust keto simple syrup sweetener to taste as needed.

Recipe Notes

Serving size: 1 cup

Nutrition Facts

Amount per serving. Serving size in recipe notes above.

Calories 131.8

Fat 3.6g

Protein 12.4g

Total Carbs 15.5g

Net Carbs 9.5g

Fiber 6g

Sugar 8g

Nutrition facts are provided as a courtesy. Have questions about calculations or why you got a different result? Please see our nutrition policy.

© Copyright Maya Krampf for Wholesome Yum. Please DO NOT SCREENSHOT OR COPY/PASTE recipes to social media or websites. We’d LOVE for you to share a link with photo instead. 🙂

Berry keto protein shake recipe pin.

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