This keto blueberry smoothie is great for a quick low carb breakfast. Dairy-free and so refreshing, it would also make a perfect post-workout snack! It contains only 4 simple ingredients.

I used to drink plenty of smoothies before I started eating low carb. I'd add lots of fruit and ALWAYS a banana to thicken it. Which tasted great, but essentially I was drinking a huge glass of sugar.
The good news is that there is no need to give up fruity smoothies when you are on a keto diet. You just have to be mindful of WHICH fruit you put in and HOW MUCH.
This low carb blueberry smoothie recipe is so refreshing, creamy and naturally sweet. And even better, it is just 4.8 grams of net carbs per portion.
I often make this smoothie in the mornings when I want something light yet nourishing. My kids enjoy it too, they ask for it regularly.
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🌟 Why You'll Love This Recipe
- Only 4 ingredients
- Naturally dairy-free and gluten-free
- Creamy, thick texture
- Packed with healthy fats and antioxidants
- Fruity blueberry flavor
- 4.8g net carbs per serving
Ingredients
This recipe is so simple, without powders or fancy ingredients.
- Blueberries: I'm using frozen berries, which helps thicken the smoothie. If you want to use fresh berries, be sure to add an ice cube or two to make it thick and frothy.
- Unsweetened almond milk: Or use any other nut milk of your choice - or unsweetened coconut milk.
- Avocado: I added about ¼ small avocado. This makes the smoothie super thick and creamy. Avocado is incredibly nutrient-rich - it contains nearly 20 vitamins and minerals, plus healthy fats.
- Vanilla extract: Unless you add powdered sweetener, the smoothie is not particularly sweet. To give it a more mellow, warm flavor, I always put in a little vanilla extract.
Instructions
There really is only one step: Put all ingredients in a blender jug and blend until smooth!
High-speed blenders will give the smoothest, creamiest result.

FAQ
I don't recommend it. It is best fresh, while it is still frothy from the blender and has a vibrant blue colour.
Swap out some of the almond milk with greek yogurt or coconut yogurt for a tangy twist. Adding coconut cream would make this smoothie very filling.
Another way to up your fats intake is to add a tablespoon of MCT oil!
You can get the same creamy thickness by using collagen powder (aff link) or protein powder. For both powders, I'd go with 2 tablespoons.
Variations
If you have a sweet tooth, add 1-2 teaspoons of powdered sweetener such as allulose, xylitol or erythritol. Or, add a few drops of stevia.
Use strawberries, raspberries or blackberries instead of blueberries - or a mix of all.
If you use fresh blueberries, add a few ice cubes to the smoothie. Or, use frozen avocado.
For a thicker smoothie, add 1 tablespoon almond butter or peanut butter.
As an alternative to the vanilla extract, try using a squeeze of lemon or lime!
I sometimes add a handful of spinach leaves. Just be aware that this will change the colour and make it a bit grey-ish.
Heavy whipping cream and cream cheese would definitely taste good in this recipe. But I'll be honest with you - this would make it less of a healthy smoothie and more of a dessert.
Storage
This blueberry smoothie is best when it is fresh. Leftovers can be stored in the fridge for up to 1 day.
Related recipes
Here are more keto smoothies to try:
- Chocolate Avocado Smoothie3 Minutes
- Keto Avocado Smoothie2 Minutes
- Avocado Strawberry Smoothie (Keto)2 Minutes
- Detox Green Keto Smoothie5 Minutes
- Keto Peanut Butter Smoothie3 Minutes
- Keto Coffee Smoothie (Frappuccino)3 Minutes
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Recipe

Perfect Keto Blueberry Smoothie
from Sugar Free LondonerNote: The servings slider only changes the first amount in each line and not any subsequent amounts. Please make your own calculations where necessary. ***As an Amazon Associate I earn from qualifying purchases.
Ingredients
- ¼ cup / 35g blueberries frozen
- 1 cup / 240ml almond milk unsweetened
- 1 oz / 30g avocado circa ¼ small avocado
- ¼ tsp vanilla extract
- 1 teaspoon powdered sweetener optional
Instructions
- Place all ingredients in a blender and blend until smooth.
- Taste and add optional sweetener if required.
Notes
Nutrition
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Cheri Mello
YUM Thank You FOR SHARING ♥️❗️❗️❗️G-d♥️Bless
Rachel
Love your recipes I think I have tried them all. Keep them coming - mind you I am not losing weight - I think because I am eating too much. thanks anyway x
Katrin Nürnberger
Weight stalling can have many different reasons. Too much food is definitely one of them! I'm focussing on plenty of green veggies this month to make up for December 🙂