This high-fiber smoothie recipe is creamy, filling, and packed with ingredients that support gut health and stable blood sugar. A quick and nutritious smoothie recipe perfect for busy mornings
Smoothies have always been one of my favorite breakfasts because I love how much you can pack into one blender! Plus, when mornings feel rushed, throwing a few ingredients into the blender can be the fastest way to get all your nutritional categories in at once (including veggies!).
Smoothies are also hard to mess up and so versatile to customize. You can change the fruit, adjust the sweetness, add extra protein or boost the fiber depending on what your body needs that day. I always recommend a rich smoothie over one made mostly of simple carbs and juice.

Since the blender does some of the breaking down for you, smoothies can sometimes leave you hungry sooner than a “chewable” meal. So I try to include as much fiber and protein as possible to help with that satiety. Adequate fiber supports gut health, aids in smooth digestion (ahem!), and can also help keep blood sugar stable after breakfast.
This fiber-rich smoothie is one of my favorite smoothie combinations, with fiber-enhanced oats, berries, spinach, and chia seeds. It’s creamy, naturally sweet from fruit and full of ingredients that support digestion and overall gut health. Top it off with this healthy sugar-free granola recipe for a crunchy topping and even more fiber.

High Fiber Smoothie Recipe
If you’re looking for an easy way to boost your dietary fiber without using supplements or eating whole grains with bran, this smoothie checks all the boxes.
This smoothie recipe calls for simple ingredients like whole milk, fresh fruit, chia seeds, peanut butter, and Greek yogurt to create a creamy drink that really keeps you full. It works great as a quick breakfast, an afternoon snack or even a light meal after a workout.
Are Smoothies High in Fiber?
Smoothies can contain fiber, but it all depends on what goes into the blender. A basic fruit smoothie made with milk and fruit may only contain about two to four grams of dietary fiber. This is because many smoothies are based mostly on liquid ingredients and only fruit.
But with a few extra key ingredients you go from a snack to a meal. Using whole fruit instead of fruit juice helps maintain fiber content, and adding ingredients like chia seeds, oats, spinach or flax seeds can significantly increase fiber intake.
When you combine several high-fiber ingredients, a smoothie can easily reach eight to twelve grams of dietary fiber or more.

How to Add Fiber to Smoothies
Use whole fruit instead of juice
Whole fruit naturally contains fiber and helps create a thicker smoothie texture. Bananas, berries, mangoes and peaches are all great choices. Frozen fruit also works well because it adds creaminess without watering down the smoothie, and you don’t need to add ice.
Add seeds like chia or flax
Chia seeds are one of the easiest ways to increase your fiber intake. Just one tablespoon contains about five grams of fiber. They also support gut health and blend perfectly into smoothies without affecting the taste too much.
Include oats
Rolled oats are another easy addition that increases both fiber and keeping power. They blend smoothly and provide slow-digesting carbohydrates that help keep blood sugar stable. You can even use leftover oatmeal if you like!
Add Healthy Fat
Healthy fats help make smoothies more filling. Peanut butter or almond butter adds richness and helps balance out the carbs from the fruit and a little more protein and fiber.
Include protein
Protein powder or Greek yogurt can turn a fruit smoothie into a more complete meal. Protein works alongside fiber to keep you fuller for longer.
And if you’re looking for more high-fiber breakfast ideas, you might also enjoy this guide: 10 High-Fiber Breakfast Ideas.
What to Add to Smoothies for Fiber
To make your smoothie feel more like a complete meal, try including three elements: fiber, protein and healthy fats.
Fiber from fruit, oats and chia seeds help support digestion and gut health. Greek yogurt protein or protein powder helps keep you full. Healthy fats like peanut butter help balance blood sugar and add flavor.
Here are some ingredients that help boost fiber in smoothies:
- Chia seeds – about 5 grams of fiber per tablespoon
- Raspberries – about 8 grams of fiber per cup
- Banana – about 3 grams of fiber per medium banana
- Rolled oats – about 4 grams of fiber per half cup
- Flaxseed – about 2 grams of fiber per tablespoon
- Spinach – about 1 gram per cup plus extra nutrients
- Avocado – about 5 grams per half avocado
If you’re wondering what to eat with a breakfast smoothie, pairing it with toast, eggs or oatmeal can make it even more filling: What to eat with a breakfast smoothie.
How to Make a High Fiber Smoothie

Ingredients
- 1 small or 1/2 large frozen banana
- ½ cup frozen berries
- 1 tablespoon of chia seeds
- 1 tablespoon peanut butter
- ¼ cup rolled oats
- ½ cup Greek yogurt
- ¾ cup whole milk
- A handful of spinach
- Optional: 1 scoop of protein powder
Instructions
Step 1: Add the liquid base
Start by pouring the whole milk into the blender. Adding the liquid first helps the blender run smoothly.
Step 2: Add creamy ingredients
Add the Greek yogurt and peanut butter. These ingredients help create a creamy texture and add protein and healthy fats.
Step 3: Add fiber-rich ingredients
Add the oats, chia seeds and frozen banana. These ingredients provide the majority of dietary fiber in this smoothie recipe.

Step 4: Add fruit and toppings
Add the frozen berries and any optional ingredients such as spinach or protein powder.
Step 5: Mix until smooth
Blend for about 30 to 60 seconds until everything is smooth and creamy.


Step 6: Serve and enjoy
Pour into a glass and enjoy immediately. If the smoothie is too thick, you can add a little more whole milk and blend again.


I like to top my smoothies with some granola for crunch. Serve in a cup or bowl with a spoon.

High Fiber Smoothie Recipe
This high-fiber smoothie recipe is creamy, naturally sweet, and packed with ingredients that support gut health and stable blood sugar. Made with fresh fruit, chia seeds, peanut butter, Greek yogurt and whole milk, it’s a quick and filling smoothie recipe perfect for busy mornings.
Ingredients
- 1 small or 1/2 large frozen banana
- ½ cup frozen berries
- 1 tablespoon chia seeds
- 1 tablespoon peanut butter
- ¼ cup rolled oats
- ½ cup Greek yogurt
- ¾ cup whole milk
- 1 handful of spinach
- Optional: 1 scoop of protein powder
Instructions
Pour the whole milk into a blender. Adding the liquid first helps the blender blend smoothly.
Add the Greek yogurt and peanut butter to the blender.
Add the oats, chia seeds and frozen banana.
Add the frozen berries and any optional ingredients such as spinach or protein powder.
Blend for 30-60 seconds until smooth and creamy.
Pour into a glass and enjoy immediately. If the smoothie is too thick, add a little more whole milk and blend again.
Notes
- Frozen fruit helps create a thicker smoothie texture without the need for ice.
- You can swap out the berries for mango, pineapple, or other fresh fruit depending on what you have on hand.
- Adding protein powder increases the protein content and can help make this smoothie more filling.
- For extra fiber, try adding ground flax seeds or a few tablespoons of oats.
If you like tropical smoothies, you might also like this Mango Pineapple Smoothie.

