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Home » Recipes » Oatmeal

High Fiber Overnight Oats

By Laura Fuentes Updated Feb 10, 2026

5 from 4 votes

Recipe

This post may contain affiliate links. Read our disclosure policy here.

With 10g of fiber, these overnight oats are a nutritious breakfast that also tastes delicious.

Want to add more fiber to your morning? Make this high-fiber overnight oats recipe. 

a jar of high protein overnight oats topped with strawberries

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

  1. Combine half of each ingredient in each jar and stir to combine. If including other add-ins, add them now or before serving.
  2. Refrigerate at least 4 hours or overnight.
  3. 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)

a jar of high protein overnight oats topped with strawberries
Servings: 2
Cook Time: 5 minutes mins
Total Time: 8 hours hrs
With 10g of fiber, these overnight oats are a nutritious breakfast that also tastes delicious.
5 from 4 votes
Print Pin

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

Add-ins:
  • 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.

Equipment

two jars of overnight oats with spoons
Overnight Oats Jars with Spoon
Wide-Mouth Mason Jars

Nutrition

Serving: 1jar | Calories: 324kcal | Carbohydrates: 42g | Protein: 18g | Fat: 10g | Saturated Fat: 1g | Polyunsaturated Fat: 6g | Monounsaturated Fat: 2g | Trans Fat: 0.02g | Cholesterol: 6mg | Sodium: 75mg | Potassium: 529mg | Fiber: 10g | Sugar: 8g | Vitamin A: 258IU | Vitamin C: 0.2mg | Calcium: 332mg | Iron: 3mg

More Oatmeal

  • a jar of cinnamon roll overnight oats
    Cinnamon Roll Overnight Oats
  • a jar of flaxseed overnight oats
    Flaxseed Overnight Oats
  • a jar of overnight oats topped with banana slices and peanut butter next to a spoon with peanut butter
    Protein Powder Overnight Oats
  • a jar of chocolate overnight oats with banana, strawberries, and chopped almonds
    Chocolate Overnight Oats

Comments

    5 from 4 votes

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    Recipe Rating




  1. Jamie says

    April 15, 2026 at 8:38 am

    5 stars
    Loved these oats!

    Reply
  2. Whitney says

    March 04, 2026 at 8:57 am

    5 stars
    I was looking for ways to add fiber to my diet and these overnight oats are perfect! Very easy and customizable

    Reply
  3. Ruth says

    February 19, 2026 at 10:56 am

    5 stars
    These high fiber oats were amazing!

    Reply
  4. Louise says

    February 10, 2026 at 7:04 am

    5 stars
    I need more fiber in my diet, so trying these overnight oats asap!

    Reply
Laura fuentes holding a skillet of food standing in front of a blue door

Hi! I'm Laura.
Certified Integrative Nutrition Health Coach, mom of three, and the woman behind the world’s best pancakes—here to help you ditch the mealtime drama with recipes your family will actually eat.

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