This post may contain affiliate links. Read our disclosure policy here.
Want to add more fiber to your morning? Make this high-fiber overnight oats recipe.

High Fiber Overnight Oatmeal
This high-fiber breakfast combines the health benefits of two of my favorite oatmeal recipes: chia overnight oats and flaxseed overnight oats. I made a few adjustments to the measurements, and voilà: great consistency, tasty flavor, and plenty of nutrition.
Regular overnight oats have 4g of fiber, while this recipe with chia seeds and flaxmeal has 10g, making it a high-fiber breakfast option.
What You Need
To make this recipe, you’ll need old-fashioned oats, any regular or non-dairy milk, Greek or regular yogurt, flaxmeal, chia seeds, and vanilla. If you also add fruit, you can increase the fiber intake.
How to Make High Fiber Overnight Oats
- Combine half of each ingredient in each jar and stir to combine. If including other add-ins, add them now or before serving.
- Refrigerate at least 4 hours or overnight.
- Enjoy this breakfast cold or warm it in the microwave for a few seconds.
More Add-ins Ideas
Make your overnight oats even more tasty and nutritious by adding these ingredients into the mix or as a topping:
- Nut butter: 1 teaspoon per jar for flavor.
- Protein powder: 1 tablespoon per jar for more protein. You may need to add a little extra liquid with protein powders.
- Maple syrup or honey: 1-2 teaspoons per jar to sweeten.
- Fruit: ½ cup per jar, sliced or diced, for extra fiber.
- Nuts and seeds: 1-2 teaspoons per jar for healthy fats.
High Fiber Overnight Oats (10g)

Ingredients
- 1 cup old-fashioned oats
- 1 cup milk, any
- ½ cup yogurt, Greek or regular (any flavor)
- 2 tablespoons flaxmeal, ground flax seeds
- 2 tablespoons chia seeds
- ½ teaspoon vanilla
Instructions
Prep:
- Fill each jar with ½ cup oats, ½ cup milk, ¼ cup yogurt, 1 tablespoon flaxmeal, 1 tablespoon chia seeds, and ¼ teaspoon vanilla. If adding any add-ins, add them now or save for topping. Mix the contents of the jar with a spoon and cover with a lid.
Chill:
- Refrigerate the jars for 4 to 8 hours or overnight.
Serve:
- Enjoy the overnight oats cold or warm up in the microwave for 30 seconds to 1 minute.
Notes
- Nut butter: 1 teaspoon per jar for flavor.
- Protein powder: 1 tablespoon per jar for more protein. With some protein powders, you might need to add a little extra liquid.
- Maple syrup or honey: 1-2 teaspoons per jar to sweeten.
- Fruit: ½ cup per jar, sliced or diced.
- Nuts & seeds: 1-2 teaspoons per jar for healthy fats.







Jamie says
Loved these oats!
Whitney says
I was looking for ways to add fiber to my diet and these overnight oats are perfect! Very easy and customizable
Ruth says
These high fiber oats were amazing!
Louise says
I need more fiber in my diet, so trying these overnight oats asap!