Amazingly soft and moist Protein Sweet Potato Bread with no oil, butter or sugar! This healthy sweet potato loaf uses protein powder and Greek yogurt for a low calorie, fat free and sugar free recipe!

After that major success with my fat free protein pumpkin bread, I had to go for another along those lines; That soft moist texture was just too hard to let go of.

So to keep it just super simple – replaced the pumpkin puree in that breakfast quick bread with sweet potato, and make this protein sweet potato loaf instead!

That same softness and fluffiness and whatnot, but still fat free and sugar free and whatnot 🙂

Ingredients for Healthy Protein Sweet Potato Bread

This protein sweet potato bread is made with nutritious ingredients like protein powder and non-fat greek yogurt, and has no oil and no butter – the perfect low fat quickbread recipe!

For the wet ingredients:

Cooled, Mashed Sweet Potato
Non-fat Greek Yogurt a high protein low fat sweet potato bread.
Sugar free Maple Syrup for low calorie sweet potato bread recipe with no sugar! I use the sugar free monk fruit maple syrup from Lakanto (code HAYLSKITCHEN gets you a discount)
Almond Milk
Eggs

Then there’s the dry ingredients:

1:1 Gluten Free (All Purpose) Baking Flour – or a regular all purpose flour
Unflavored Protein Powder to replace some of the flour (and carbs) in the recipe for a slightly lower carb high protein pumpkin bread. I used a whey-caesin blend from Ques t Nutrition.
Vanilla Protein Powder; This is the source of protein and sweetness in the protein powder pumpkin bread since there’s no added sugar in this recipe. Quest again here.
Cinnamon
Baking Powder

And then optionally for some crunch:

Chopped Pecans

How to make Mashed Sweet Potato for Quick Bread

This sweet potato loaf is really easy to make, but you want to have perfectly mashed and smooth sweet potato here.

Peel the sweet potato – the outside is tough.

Cut into about 1½” cubes.

Place in pot of boiling water.

Let cook 12-15 mins. Chunks should easily pierce with a fork.

Let cool about 1-2 mins.

Blend or puree using food processor or high speed blender.

Tips for perfect Protein Powder Sweet Potato Bread

This protein powder sweet potato bread is quite easy, but here’s some tips to make sure they turn out perfect!

Use Garnet or Jewel sweet potatoes. They are orange-reddish on the outside, and mildly sweet.

Make sure you let the sweet potato cool before going ahead with the recipe or it will scramble the eggs.

Use room temperature eggs, sweet potato and milk;
This is so the wet ingredients and dry ingredients can mix well.

Don’t over-mix the batter!
Make sure you gently fold the dry mix into the wet to combine them.
If you over-mix it, the protein powder – will make it tough, dense and gummy.

Taste the batter and see if you need some extra sweetener. I’d recommend using stevia powder to maintain the consistency of the batter and have low sugar sweet potato loaf.

Let loaf cool completely before cutting.

Can you store this Protein Sweet Potato Loaf?

This moist and tender protein packed sweet potato loaf keeps really well and is great for a meal prep snack, breakfast or postworkout treat.

You can keep the protein powder sweet potato quickbread out at room temperature for about 3 days in an airtight container.

For longer, keep high protein sweet potato bread in the fridge for about a week – use an airtight container again.

To freeze the healthy sweet potato bread cut it into slices, wrap each slice in plastic wrap, and place them in a freezer-safe zipper bag.
You can even store the whole loaf itself – be sure to let it thaw before you serve.

Alternatives for Healthy Sweet Potato Bread with No Oil

For the perfect low fat but moist healthy sweet potato bread, I would highly suggest using the ingredients and brands I recommended; I do have some alternatives you can try. I haven’t testing them all, so I can’t say how your loaf might turn out.

1:1 Gluten Free Baking Flour: All purpose flour or Whole Wheat Pastry Flour in the same amount by weight not cups
Unflavored Protein Powder: More flour, but also reduce the milk to about 3 Tbsp.
Greek Yogurt: Coconut Yogurt
Almond Milk: Any other milk
Sugar-freeMaple Syrup: Regular maple syrup or honey, but the recipe will not be sugar-free anymore.

More Sweet Potato Desserts Recipes to try: