Last Updated on June 1, 2025 by Nico
Ready in 5 minutes and using only 4 all-natural ingredients, this strawberry kefir smoothie is great at boosting gut health. Strawberries, bananas, linseed, and kefir are blended to create the perfect summer drink.
This simple strawberry kefir smoothie ‘recipe’ is barely a recipe. Like most simple foods and drinks, the recipes become so basic that it’s almost embarrassing to write an entire post and share them.
But I remember a time not so long ago where kefir was a brand new food to me. I didn’t know how to consume it or what would taste good with it.
(Here are 3 more simple milk kefir smoothie recipe ideas!)
Drinking kefir is a great way to promote gut health. Kefir is full of probiotics which, among other things, help to repair the lining of your gut. Our guts are partially (and amazingly!) responsible for our immune system, our moods, and more. Having a healthy gut is important and by consuming kefir, your gut will be strengthened.
I’ve put instructions below on how to make kefir at home. Once you get into the routine, it’s easy to make and consume it every day.
You can of course consume it plain, but it can have a tangy taste which you might need to get used to. Adding frozen fruit, peanut butter, or even sugar-free cocoa powder are great ways to help you and your family adjust to the flavour.
If you’re looking for a delicious smoothie to make starting to consume kefir easier, I hope you will enjoy trying this strawberry kefir smoothie recipe!
Watch the video
Ingredients
Kefir
Strawberries – fresh or frozen
Banana
Optional – linseed
For complete measurements, see the printable recipe card below.
Tools You Might Need
Blender
Kefir grains
How To Make A Strawberry Kefir Smoothie
To make milk kefir:
Purchase milk kefir grains.
Add the grains to a glass jar and pour about 2 cups of milk over the grains.
Loosely cover the milk and let it sit on the counter overnight.
The next day strain off the grains. The liquid you strain off is kefir.
Put the grains back into the glass jar and cover them with more milk. The next day, this milk will be kefir. And you simply keep repeating. See the FAQ to learn how to pause making kefir.
To make a strawberry kefir smoothie:
Add kefir, strawberries, and banana to a blender.
If you are using newly strained kefir that is room temperature, it might be best to use frozen berries. This will make the smoothie cold. You can also simply refrigerate the kefir for a few hours before making the smoothie.
You can optionally add linseed to the blender as well. Linseed is very high in fibre and protein and will give the smoothie more bulk.
Blitz until completely smooth.
Serve immediately and enjoy!
Kefir Smoothie Variation Ideas
For added sweetness – add 1 tablespoon of maple syrup or honey to the blender
For added protein – add 1 tablespoon of linseed or peanut butter to the blender
More berry flavour – you can add additional berries into the smoothie if you prefer! Blueberries, blackberries, and cherrie are all delicious options.
FAQ
Homemade kefir lasts about 2-3 weeks in the fridge, in an airtight container.
To take a break from making kefir, simply strain off the grains and put them in a clean glass jar. There’s no need to wash the grains with water. Cover the grains in fresh milk and seal the glass container. Put the container in the fridge and replace the milk every 1-2 weeks to keep the grains happy.
When you’re ready to regularly make kefir again, simple put the grains into a new glass jar and submerge in about 2 cups of fresh milk. The grains should be back in action after being on the countertop for about 24 hours in a loosely covered container.
Yes. Blending kefir does not affect the probiotic levels.
Yes. We personally enjoy kefir in smoothies because there are so many flavour options you can play with. If you’re used to the flavour of store bought kefir, it might take you a few sips to get used to the extra tangy flavour of homemade kefir. Using homemade kefir in smoothies is a great way to get used to the flavour.
What to read next
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If you make this recipe and enjoy it, please consider giving it 5 stars. Find me on Instagram @documentingsimpleliving and show me what you’ve made!
Simple Strawberry Kefir Smoothie Recipe For Gut Health
Ingredients
Method
- Purchase milk kefir grains.
- Add the grains to a glass jar and pour about 2 cups of milk over the grains.
- Loosely cover the milk and let it sit on the counter overnight.
- The next day strain off the grains. The liquid you strain off is kefir.
- Put the grains back into the glass jar and cover them with more milk.
- Add kefir, strawberries, and banana to a blender.
- You can optionally add linseed to the blender as well. Linseed is
very high in fibre and protein and will give the smoothie more bulk. - Blitz until completely smooth.
- Serve immediately.
Nutrition
Video
Notes
keep the grains happy.
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