This creamy high-fiber smoothie packs in 15 grams of filling fiber and blends up in just 5 minutes for a healthy breakfast I am absolutely obsessed with! Made with simple ingredients like frozen mixed berries, baby spinach, chia seeds and Greek yogurt (it’s also got 20 grams of protein) this no banana smoothie won’t leave you hungry 30 minutes later. Perfect for busy mornings, or a quick post-workout snack!

A tall glass of mixed berry smoothie topped with berries and garnished with a slice of orange, set on a white surface alongside sliced oranges and leafy greens in the background.
With it’s fresh flavor and vibrant color, this high fiber mixed berry smoothie makes it easy (and delicious) to meet your daily fiber needs (15 grams in this baby)!

This high-fiber fruit smoothie is one I come back to again and again. It’s simple, balanced, and genuinely satisfying. Trust me, this isn’t like the sludge you might picture when you think high fiber drink. I actually call it my sunshine smoothie because it’s so smooth, bright and refreshing. 

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One of the things I often hear as a dietitian is that while smoothies are delicious, they aren’t always filling (or that they’re just going to spike blood sugars). That’s where fiber comes in. Honestly, if you’re working on adding more fiber to your diet in  a way that still feels enjoyable and realistic, intentionally designed smoothies are one of the easiest places to start!  

Let’s quickly take a peek at these superstar ingredients before we blend this baby up!. 

A flat lay of mixed berry smoothie ingredients on a pink surface: peeled orange slices on a plate, a bowl of Greek yogurt, fresh spinach leaves, mixed berries, a glass of milk, and chia seeds—each item clearly labeled.
Just six simple ingredients in this easy breakfast smoothie including fiber-rich frozen berries, spinach, chia seeds and orange segments. So good.

Key Ingredients to Make This Smoothie Fiber-Packed (and still taste amazing) 

There are two types of fiber, soluble and insoluble. Both have incredible benefits so I wanted to make sure to add a nice little mix of both. 

Soluble fiber is particularly known to support blood sugar balance, and keep us full longer. For that, I’ve included chia seeds, and fresh orange. I initially tested this recipe without the chia seeds but it is so much better with! They make it even creamier, plus they add around 5 grams of fiber to this smoothie! 

Insoluble fiber, or “roughage”, is known to fill us up with its bulk, support digestion, and keep us regular. Spinach and the frozen mixed berries fill that role here (the fruit being frozen doesn’t impact the fiber, I just love frozen fruit in smoothies for a colder and thicker milkshake-like texture).

And when combined with protein-rich Greek yogurt and satiating fats from the chia, we’ve got my ultimate PFF combo (protein fat and fiber) for a balanced and filling smoothie, just like my mango avocado smoothie.

Let’s Blend This Drink Up Together!

A hand holds a blender jar containing orange slices, frozen mixed berries, and spinach leaves, ready for blending.
Dump everything into the blender. I like to start with liquid ingredients for easier blending.
Close-up of a blender with a frothy pink smoothie inside. The smoothie has small bubbles on the surface and appears creamy. The interior of the blender has some streaks of smoothie along the sides.
Blend until smooth and creamy.
A glass of mixed berry smoothie topped with frozen berries and garnished with an orange slice sits on a white surface, with a bowl of berries and a plate of orange slices in the background.
Pour that cold and creamy smoothie mixture into your favorite glass and enjoy!

How to Meal Prep Smoothies

If you’re a fan of making your mornings easier (who isn’t?!), prepping your smoothies ahead of time is a total game changer. There are two ways you can do this

  1. Portion out all the dry ingredients into freezer bags or containers (berries, orange, spinach, chia seeds) and pop them in the freezer. When you’re ready, just dump everything into your blender, add your milk and yogurt, and blend! 
  2. Make a big batch and store in individual sealable jars in the fridge (I love these rust proof lids!) 

Storage: These will store in the fridge up to 5 days. Alternatively, you can store in the freezer for up to 3 months. I like to either freeze my smoothies in jars (leaving 1-2 inches from the top) or in ice cube trays.

Pro Tip: When storing in the fridge they can separate. Just give them a quick shake before drinking and you’ll be good to go!

A tall glass of mixed berry smoothie with a clear glass straw, garnished with an orange slice and mixed berries on top. Slices of orange and leafy greens are blurred in the background.
With it’s bright orange notes and cold, creamy frozen berries, dare I say this smoothie makes fiber craveable?!

Other smoothies you can meal prep: 

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A glass of mixed berry smoothie with a clear straw, topped with blueberries and strawberries. In the background, blurred orange slices and a bowl of greens. The surface is a light pinkish hue.

The Most Delicious High Fiber Smoothie With Mixed Berries

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  • Author: Lindsay Pleskot, RD
  • Prep Time: 5
  • Total Time: 5 minutes
  • Yield: 1 1x
  • Category: Beverages, Breakfast
  • Method: Blended
  • Cuisine: American
Print Recipe

Description

This creamy high-fiber smoothie blends together in under 5 minutes with just six simple ingredients. Packed with around 15 grams of fiber from frozen mixed berries, baby spinach, fresh orange, and chia seeds (plus around 20 grams of protein thanks to plain Greek yogurt), it’s a balanced banana-less smoothie that supports digestion and actually keeps you full for longer than 30 minutes. Perfect for busy mornings, an easy breakfast, or a nourishing grab-and-go snack.

Ingredients

Scale
  • 1 cup frozen mixed berries (I like blueberries, blackberries, raspberries and/or strawberries)
  • ½ navel orange, peeled
  • 1 cup spinach
  • ½ cup plain Greek yogurt
  • ½ cup milk of choice
  • 1 Tbsp chia seeds

Instructions

  1. To a high-speed blender, add the berries, orange, spinach, yogurt, milk, and chia seeds.
  2. Blend until completely smooth, stopping to scrape down the sides with a spatula if needed, approximately 30 seconds.

Notes

Storage: Store in the fridge up to 5 days. Alternatively, you can store in the freezer for up to 3 months. I like to either freeze my smoothies in jars (leaving 1-2 inches from the top).

Yogurt: Use vanilla Greek yogurt for a sweeter option