High Protein Banana Bread Recipe (15g Protein Per Slice, Moist & Healthy)

Craving banana bread that tastes just like the classic version but packs a serious protein punch? This high protein banana bread delivers moist, tender crumb with natural sweetness from ripe bananas, boosted by vanilla protein powder and Greek yogurt for 15 grams of protein per slice. Perfect for breakfast, snacks, or post-workout fuel, it uses whole grains and minimal sugar while keeping that irresistible banana flavor.​

Why You’ll Love This Recipe

This recipe transforms overripe bananas into a nutrient-dense treat that satisfies without guilt. Each slice offers balanced macros for sustained energy, making it ideal for meal prep or grabbing on busy mornings. Unlike typical banana bread, it stays soft for days and freezes beautifully.​

Key benefits include high protein from simple swaps like protein powder and yogurt, plus fiber from oats for fullness. Bake a loaf for under $5 and enjoy guilt-free seconds.​

Nutrition Comparison Per Slice (1/12 loaf)

Nutrient	Amount	% Daily Value*
Calories	200	10%
Protein	15g	30%
Carbs	25g	9%
Fiber	3g	11%
Sugar	8g	–
Fat	5g	6%

*Based on 2,000 calorie diet. Values approximate; varies by ingredients.​

Ingredients

Dry Ingredients:

• 1 cup (90g) old-fashioned rolled oats, blended into flour
• 1/2 cup (60g) vanilla protein powder (whey or plant-based)
• 1/2 cup (60g) white whole wheat flour or oat flour
• 1 tsp baking soda
• 1 1/2 tsp baking powder
• 1 tsp kosher salt
• 1 tsp ground cinnamon

Wet Ingredients:

• 3 large ripe bananas (about 360g mashed, very spotty for best sweetness)
• 1 large egg
• 1 cup (240g) plain Greek yogurt (full-fat or nonfat)
• 1 tsp vanilla extract
• 2 Tbsp maple syrup or honey

Optional Add-Ins:

• 1/2 cup dark chocolate chips or chopped walnuts
• Pinch of nutmeg for extra warmth​

Yields 1 loaf (12 slices). Prep: 10 min. Bake: 40-50 min.

Step-by-Step Instructions

1. Preheat and Prep Pan: Preheat oven to 350°F (175°C). Grease a 9×5-inch loaf pan and line bottom with parchment paper for easy release.​
2. Make Oat Flour: Add oats to a food processor or high-speed blender. Pulse until fine like flour, about 30 seconds. Transfer to a large mixing bowl.​
3. Mix Dry Ingredients: Stir oat flour, protein powder, whole wheat flour, baking soda, baking powder, salt, and cinnamon into the bowl until combined.​
4. Mash Bananas and Wet Mix: In a separate bowl, mash bananas until smooth. Whisk in egg, Greek yogurt, vanilla, and maple syrup until creamy. No lumps remain.​
5. Combine Batter: Gently fold wet ingredients into dry using a spatula. Stir just until no dry pockets left, about 20 strokes. Fold in chocolate chips if using. Batter will be thick.​
6. Bake: Pour into prepared pan, smooth top. Bake 40-50 minutes. Tent with foil after 30 minutes if browning too fast. Toothpick in center should come out clean or with moist crumbs.​
7. Cool Completely: Let cool in pan 10 minutes, then transfer to wire rack. Cool fully (2+ hours) before slicing for best texture.​

Expert Tips for Perfection

• Use super-ripe bananas; freeze extras and thaw for peak sweetness and moisture.​
• Don’t overmix batter to avoid dense texture; lumps are okay.
• For higher protein, add 2 Tbsp chia seeds or swap half yogurt for cottage cheese.
• Test doneness early; protein powder bakes faster than flour.
• If too dry, add 1-2 Tbsp milk next time; climate affects moisture.​

Nutrition Facts

Detailed per slice (based on 12 slices, with chocolate chips):

• Calories: 200
• Protein: 15g
• Total Fat: 5g (2g saturated)
• Carbs: 25g
• Fiber: 3g
• Sugars: 8g (natural from bananas/syrup)
• Sodium: 300mg

Calculate your exact macros using a tracker like MyFitnessPal by inputting your protein brand. Great for keto adjustments with almond flour swap.​

Storage and Freezing

• Room Temp: Store airtight up to 3 days.
• Fridge: Up to 5 days; stays moist.
• Freezer: Slice, wrap individually in plastic, freeze up to 3 months. Thaw overnight or toast from frozen.​

Reheat slices in toaster oven for fresh-baked warmth.

Serving Ideas

Enjoy plain or elevate:

• Spread with almond or peanut butter for 25g+ protein.
• Top with Greek yogurt and berries for breakfast parfait.
• Warm with a drizzle of honey post-workout.
• Crumble into overnight oats or smoothie bowls.​

Pairs perfectly with coffee or as a mid-afternoon pick-me-up.

Recipe Variations

Vegan Version: Use plant-based protein, flax egg (1 Tbsp flax + 3 Tbsp water), and dairy-free yogurt. Bake time same.​

Chocolate Lovers: Double chocolate chips; add 2 Tbsp cocoa powder.

Nutty Boost: Stir in 1/2 cup walnuts or pecans plus 2 Tbsp peanut butter.

Gluten-Free: Swap wheat flour for 1:1 GF blend.

Pumpkin Twist: Replace 1 banana with 1/2 cup pumpkin puree.​

Frequently Asked Questions

Can I skip protein powder? Yes, replace with more oat flour but protein drops to 8g/slice.

What protein powder works best? Vanilla whey, casein, or pea for neutral taste. Avoid chocolate unless desired.​

Why is my bread gummy? Overmixing or underbaked center. Cool fully and bake longer next time.

Is it kid-friendly? Absolutely; naturally sweet, chocolate chips win them over.

How much protein without add-ins? 12g base from yogurt/egg.​

This high protein banana bread has become a staple for its ease and satisfaction. Slice, share your tweaks below, and pin for later!​

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