Mixed Berry Smoothie with No Added Sugar (5 Minutes)

Name: Mixed Berry Smoothie
Prep time: 3 min
Total time: 5 min
Ingredients: 1 cup spinach; 1 cup water; 1 cup mixed berries (frozen); 1/2 banana; 1 serving homemade protein powder (optional)

This post contains affiliate links.

Berry season has my whole family a little obsessed. We go through pints of berries in a single sitting, they’re our go-to road trip snack, and they’re pretty much always the star of my smoothies. But once berry season wraps up, I don’t stop making berry smoothies — I just switch to bags of frozen mixed berries from the freezer aisle.

That’s really what this Mixed Berry Smoothie recipe is about! Here’s a few things set it apart from the rest:

Fresh or frozen: swap in whatever berries you’ve got and it tastes just as good
Zero added sweeteners (no honey, no juice): the berries and banana bring all the sweetness on their own
A full cup of spinach: real veggies, zero “green” taste

bowl of spinach, strawberries, cherries, blueberries and banana.

Mixed Berry Smoothie Ingredients

Mixed berries: Grab a bag of frozen mixed berries or a fresh pre-cut container at the store — most blends include strawberries, blueberries, blackberries, and raspberries. They’re naturally sweet, so this smoothie needs zero added sugar, and they’re one of the best antioxidant-rich fruits you can add to your day.
Banana: This is what makes the smoothie creamy without a drop of dairy. It adds natural sweetness, potassium, and a smooth, milkshake-like texture. If your bananas are getting ripe, chop and freeze them so you always have some ready for smoothie day.
Spinach: A full cup blends in completely smooth and undetectable once the berries take over. It adds fiber, which helps your body process the natural sugars in the fruit for long-lasting energy instead of a sugar crash.
Water: Keeps things light and lets the berry flavor lead. Swap in your favorite non-dairy milk if you want something a little creamier.

Recipe Tips

Buy the bag. Whether it’s the frozen mixed berry blend or the pre-washed fresh container at the store, skip the step of sorting and prepping individual berries — it’s the easiest way to make this a regular part of your week.
Balance matters. Following a simple ratio of greens, fruit, and liquid gives you a smooth, great-tasting blend every time. Toss ingredients in at random and you risk a bitter or watery smoothie.
Prep ahead. Portion your spinach, berries, and banana into freezer bags in advance using a smoothie meal-prep method, so it’s a true grab-and-blend on busy mornings.

glass jar of green smoothie with a paper straw next to a container of fresh berries.

How to Make Mixed Berry Smoothie

This mixed berry smoothie comes together in 5 minutes flat, with no added sweeteners and no dairy.

Blend the spinach first. Start with your spinach and water in the blender, beginning on low speed and working up to high. Blend until every leafy chunk disappears — this is what keeps the finished smoothie from tasting green.
Add your berries and banana. Stop blending, add your mixed berries and banana, then blend again. Since berries have seeds, give it a little extra time to break them down. If you don’t have a high-powered blender for smoothies, you may still notice a few seeds — pouring the finished smoothie through a sieve solves that easily.
Pour and enjoy. That’s it. If you used fresh berries, toss in a couple ice cubes to chill it down. If everything was frozen, let it sit at room temperature for about 15 minutes before blending for the smoothest consistency.

If you make this mixed berry smoothie recipe, I’d love to hear how it turned out in the comment box below. Your feedback helps me and all the readers in this community. You might also enjoy some of the berry recipes in my low-sugar smoothie recipes collection.

A bowl of ready-to-eat creamy vegetable soup next to silver spoons.

NOVEMBER 9-13, 2026

Free 5-Day Soup Challenge

Celebrate this cozy season with us! For 5 days, we’re cooking up fall-inspired soup each day—packed with veggies, perfect for busy nights, and every bowl you make is a chance to win $750 in prizes!

4.59 (72)

Mixed Berry Smoothie

Jen Hansard

Naturally sweet from frozen berries and half a banana, this mixed berry smoothie needs no added sweetener, and a full cup of spinach blends in where you will never taste it. Fresh or frozen berries both work.

Review Save Print Pin

Serves: 1

Prep Time: 3

Blend Time: 2

Total Time: 5

Ingredients

Instructions

Pour the water into a blender and add the spinach. Blend until smooth.
Add the mixed berries, banana and protein powder, if using, and blend again until smooth. Pour into a glass and serve immediately.

Recipe Notes

Make It Thicker: If you use fresh berries instead of frozen, freeze the banana or add a few ice cubes so the smoothie stays cold and thick.
Greens Swap: Any leafy green works in place of the spinach. Freeze spinach ahead so it doesn’t wilt and is ready when you need it.
Protein Boost: Blend in 2 tablespoons hemp hearts in place of the protein powder.
Storing: Best fresh, but it keeps in a sealed jar in the fridge for up to 24 hours. Shake before drinking.

Nutrition

Equipment

Vitamix blender

Set of gold measuring cups with white powder on marble surface.

Le Creuset measuring cups

Common Questions

Are mixed berry smoothies good for you?

They can be! Berries are naturally low in sugar, and the spinach in this recipe boosts the fiber, which helps your body process the fruit’s natural sugars for a filling snack or light meal without a sugar rush. Berries are also rich in antioxidants and vitamins.

Can you make a mixed berry smoothie with milk?

Yes — this recipe uses water to keep it dairy-free, but you can swap in your favorite plant milk if you want something creamier.

Are mixed berry smoothies good for weight loss?

A smoothie alone won’t do it, but boosting your intake of fruits and veggies can support your goals. Berries are naturally low in sugar, and starting your day with a smoothie in place of a less balanced snack or breakfast helps set the tone for healthier choices all day long.