Glowing Green Spirulina Smoothie

This was an unexpected recipe.

I made this Glowing Green Spirulina Smoothie earlier this week with no intention of taking pictures. When I blended the ingredients (without measuring the ingredients of course), I discovered this beautiful mermaid color! I knew I had to share it with you guys!

The only problem, like I said, is that I didn’t measure the ingredients… I did try to recreate the recipe as much as I could and I think I came up with a similar result after two tries! I just had to find the right proportion of frozen bananas, kale, blueberries, milk and spirulina.

Glowing Green Spirulina Smoothie - Unsweetened Caroline

What is spirulina? It’s a blue-green algae powder that’s high in protein, iron and other nutrients. Although it’s promoted for many health benefits (don’t trust everything you read on the internet!), I simply love to use it for it’s beautiful color. You can’t taste it in this smoothie, but if you aren’t used to spirulina, you might find that it has a bit of an aftertaste. I suggest that you start with a smaller amount of spirulina, about half a teaspoon, and gradually increase the quantity. Some people drink it as a shot mixed with water, but I don’t see myself trying that anytime soon! Hah!

Don’t you just love the color?! I hope you’ll enjoy this smoothie as much as we do. 🙂

Glowing Green Spirulina Smoothie - Unsweetened Caroline

Glowing Green Spirulina Smoothie

A simple combination of kale, blueberries and spirulina gives this smoothie a glowing blue-green color! This healthy refreshing drink requires only 5 ingredients and 5 minutes!
Course Drinks
Cuisine vegan, vegetarian
Prep Time 5 minutes
Total Time 5 minutes
Servings 2


  • 1 banana, frozen
  • 1/4 cup blueberries, frozen
  • 1 cup kale
  • 1 cup unsweetened soy milk (or milk of choice)
  • 1 teaspoon spirulina powder


  • Slice a banana and place in an airtight container or plastic bag. Freeze overnight or for at least 12-18 hours.
  • When the banana is ready, add all the ingredients in a high speed blender. Blend until smooth.
  • Serve immediately or store in the fridge.


Spirulina has a particular taste. I didn’t add a lot in this smoothie, so you shouldn’t taste it, but if you’re not used to spirulina, you can start with half a teaspoon and increase gradually.

If you try this recipe, don’t forget to tag your photo #unsweetenedcaroline


  • Emily Prince Bellinger

    Hello! I’m excited to start giving Spirulina a try, and I’m not sure if you can suggest a brand or not, but I’d love your input. As you imply, you can’t trust everything on the internet, and since there’s a lot of spirulina out there, knowing your trusted or preferred vendor(s) would be helpful. Thank you!

    • Unsweetened Caroline

      Hi Emily, that’s a great question! I’ve personally only bought spirulina from a local health food store where they sell it in bulk. So unfortunately, I can’t suggest any specific brands. I would maybe stick to a local store you trust instead of buying it on the internet. Unfortunately, these types of foods aren’t well regulated to my knowledge, so you can’t be guaranteed of the quality. On the bright side, it will add a pretty color to your smoothies. The possibility of having some health benefits from spirulina is just a bonus. Or at least that’s how I see it. I’m sorry I’m not much help, but with all of those “superfoods” and supplements, you can sadly never be sure of the quality and the research is still new. I hope you’ll still enjoy the smoothie though!

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