Homemade protein bar: the smart weight loss snack

Do you want a healthy snack that curbs hunger without ruining your weight loss efforts? The homemade protein bar is the ideal solution: economical, customizable and 100% natural. Unlike industrial versions, often full of sugars and additives, it allows you to control the ingredients while enjoying a satisfying snack.

Quick recipe (8 homemade protein bars)

This homemade high-protein bar recipe is only recommended if you are not following the Cétofine 21 high-protein diet, or after your program, as part of maintaining your weight.

homemade high-protein bar recipe

The necessary ingredients

  • 2 egg whites

  • 2 ripe bananas

  • 150 g of oat flakes

  • 2 tbsp peanut butter

  • 60 ml of milk (or unsweetened plant-based)

  • Spices: cinnamon, nutmeg

Step-by-step preparation

  1. Preheat your oven to 180°C.

  2. In a bowl, mash the bananas with a fork until you obtain a smooth puree.

  3. Add the egg whites, milk and peanut butter. Mix well to obtain a creamy texture.

  4. Then add the oat flakes and spices. You can also add chia seeds or a spoonful of Cétofine 21 protein powder for enhanced appetite-suppressing effect.

  5. Pour the batter into a rectangular pan covered with parchment paper. Spread evenly for uniform cooking.

  6. Bake for 15 minutes: the surface should be slightly golden, but still soft.

  7. Let cool completely before cutting into 8 regular bars.

Tip: Store your homemade bars in the refrigerator in an airtight container (5 to 7 days). For variety, try versions with cinnamon-walnuts, 85% dark chocolate, or coconut-flax seeds.

Why prepare your homemade protein bars?

  • Economical: up to 40% cheaper than industrial bars.

  • Eco-friendly: no more disposable packaging

  • Healthy and satisfying: proteins + fiber = effective appetite suppressant.

  • Customizable: dark chocolate, nuts, seeds… according to your desires.

Otherwise opt for our Cétofine 21 protein bars, which optimize your intake while respecting your weight loss program.

preparing a high-protein bar

The right balance with Cétofine 21

Caution: some homemade recipes (banana, oats) remain high in carbohydrates. For targeted weight loss, Cétofine 21 offers ready-to-use high-protein bars:

  • Between 8.7 and 15 g of protein / bar

  • Contain few carbohydrates

  • Practical and varied (chocolate, coconut, lemon, salted caramel)

These high-protein bars are only recommended from Level 3 (Transition) and Level 4 (Stabilization) of the Cétofine diet, as they contain more carbohydrates than a standard high-protein packet.

Practical and packaged in individual sachets, our Cétofine 21 high-protein bars provide you with all the necessary proteins to stay satisfied between meals and avoid snacking cravings.

To remember:

  • The homemade protein bar is a healthy and economical alternative to avoid snacking.

  • For maximum weight loss effectiveness, Cétofine 21 bars offer the turnkey solution: simple, balanced and tasty.


Try our homemade recipes offered by Cétofine 21 or opt directly for our ready-to-eat high-protein bars. In both cases, you have an effective and delicious weight loss snack.

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