High-Protein Keto Banana Bread

Moist, bakery-style banana bread with a protein boost — low-carb, sugar-free, and ready in 55 minutes

This high-protein keto banana bread tastes like the classic loaf without the sugar and extra carbs. Almond flour, protein powder, and banana extract create a moist, tender crumb that delivers 8 g of protein and only 3 g net carbs per slice while staying fully sugar-free.

Low-carb, sugar-free, and perfect for breakfast, snacks, or meal prep.

Prep10 min

Bake45 min

Servings10

Protein8g

Net Carbs3g

Calories180

Why you’ll love this banana bread

8g protein per slice
Only 3g net carbs and fully sugar-free
Moist, tender crumb with classic banana flavor
Ready in about 55 minutes
Freezer-friendly and great for meal prep
Tastes like bakery banana bread without the carbs

Health notes

High protein: Protein powder and eggs add a solid protein boost.
Low carb: Almond flour and banana extract keep net carbs low.
Sugar-free: No added sugar — only sugar-free sweetener.
Satisfying: Rich enough for breakfast or an afternoon snack.

Key element — don’t overmix

Stir the batter just until combined. Overmixing can make almond-flour bread dense instead of tender.

Ingredients

Banana bread (10 slices)

2 cups almond flour
1 scoop (about 25–30g) vanilla or unflavored protein powder
⅓–½ cup powdered sugar-free sweetener (to taste)
2 tsp baking powder
½ tsp baking soda
1 tsp cinnamon
¼ tsp salt
3 large eggs
⅓ cup melted butter or coconut oil
¼ cup unsweetened almond milk
2 tsp banana extract
1 tsp vanilla extract
Optional: ¼ cup sugar-free chocolate chips or chopped walnuts

Swaps

Higher protein: Add an extra scoop of protein powder and 1–2 Tbsp extra almond milk if the batter is too thick.
Dairy-free: Use coconut oil and almond milk.
Nut-free: Use sunflower seed flour in place of almond flour (texture will vary).
Extra banana flavor: Add another ½ tsp banana extract rather than real banana to keep carbs low.

Instructions

Prep. Preheat the oven to 350°F (175°C). Grease a loaf pan or line a foil loaf pan with parchment.

Mix dry ingredients. In a large bowl, whisk together the almond flour, protein powder, sweetener, baking powder, baking soda, cinnamon, and salt.

Mix wet ingredients. In a separate bowl, whisk the eggs, melted butter (or oil), almond milk, banana extract, and vanilla until smooth.

Combine and bake. Pour the wet ingredients into the dry ingredients and stir just until combined. Fold in chocolate chips or walnuts if using. Spread the batter in the prepared pan. Bake 40–50 minutes until a toothpick inserted in the center comes out clean or with a few moist crumbs. Cool in the pan 10 minutes, then transfer to a rack to cool completely before slicing.

Pro tips

Don’t overmix — a few small lumps are fine and help keep the loaf tender.
If the top browns too quickly, tent loosely with foil for the last 10–15 minutes.
Let the bread cool completely before slicing for cleaner cuts.
This freezes very well — slice first, then wrap individual pieces.
Banana extract gives the flavor without adding the carbs of a whole banana.

Nutrition

Nutrient	Per slice
Calories	180
Protein	8g
Net carbohydrates	3g
Total carbohydrates	6g
Fiber	3g
Total fat	14g
Sodium	190mg

Estimates based on almond flour, protein powder, eggs, and sugar-free sweetener. Exact numbers vary with protein powder brand and mix-ins.

Variations

Chocolate chip

Fold in ¼–⅓ cup sugar-free chocolate chips before baking.

Walnut banana bread

Add ⅓ cup chopped walnuts for extra crunch.

Cinnamon swirl

Mix 1 Tbsp cinnamon with 1 Tbsp sweetener and swirl into the batter before baking.

Mini loaves

Divide into mini loaf pans and reduce bake time to about 25–30 minutes.

Storage

Method	Time	Notes
Room temperature	1–2 days	Wrapped tightly
Refrigerator	Up to 5 days	Best texture when lightly warmed
Freezer	Up to 2 months	Slice first, then wrap individually

FAQ

Yes. At only 3g net carbs per slice it fits easily into most keto and low-carb plans.

Real banana adds more carbs. Banana extract gives the classic flavor while keeping net carbs low.

It was likely overmixed. Stir just until the dry ingredients are moistened.

Yes. Vanilla or unflavored works best. Adjust liquid slightly if the batter is too thick or thin.

Keep wrapped at room temperature for 1–2 days, in the fridge up to 5 days, or freeze slices for longer storage.

Yes. Cool completely, slice, wrap individually, and freeze for up to 2 months.

Test your knowledge

5 quick questions about this keto banana bread

1. Protein per slice?

2. Net carbs per slice?

3. Why avoid overmixing the batter?

4. About how long does this take?

5. Best way to store leftovers?

High-Protein Keto Banana Bread