Protein Bars

Mighty protein bars for your performance, health and a fitter future. Natural, powerful and delicious

Our Protein Bars

Naturally Bigger, Naturally Better

At a whopping 100g each with 20g of protein and 409 calories, our mighty natural protein bars are the ultimate in refueling after exercise and can even be used as meal replacements. Packed with crushed fruit and Italian almonds, they're also delicious

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Top Customer Reviews

★★★★★

Awesome source of protein! Really tasty and super filling

Gus
★★★★★

Great tasting bars. Lots of protein, very filling

Neil
★★★★★

My new favourite snack. I LOVE these, can't get enough!

George Lavalette
★★★★★

A very happy customer, they are brilliant

Mark
★★★★★

Love these, they are filling and curb my appetite

Christopher Anderson
★★★★★

Absolutely delicious - can't believe it's a protein bar

Sophie
★★★★★

Really satisfying and keeps me off the chocolate bars!

John
★★★★★

Superb bars. Taste incredible, really filling too

Heidi
★★★★★

a real treat, totally natural, I am feeling the benefits

Keith Cook
Our Protein Bars
Plant-based & Planet-based®

Everything we do at 33Fuel is lead by our Fuelosophy for Performance, Health and a Fitter Future so you can buy our Eroica Protein Bars knowing they'll fuel your performance today, your health tomorrow and help build a fitter future for you and the planet.

33Fuel protein bar
33Fuel protein bar Vegan  dairy free gluten free
33Fuel Protein bar gluten free
Eroica Natural Protein Bars

Eroica Natural Protein Bars

  • 2x the size of ordinary protein bars
  • 20g protein & 409 cals per bar
  • Handmade in Italy
Regular price£22.99
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Tax included. Shipping calculated at checkout.

Eroica Natural Protein Bars
Rethink your protein bars. Based on an ancient Italian recipe that fueled Roman legions the giant 100g Eroica bar is delicious natural protein perfection. For your performance, health and a fitter future - it’s our Fuelosophy

‘Eroica’ means ‘Heroic’ in Italian and that sums these XXL natural protein bars up perfectly. Ordinary protein bars are 50g or less which won't hit the spot when you're training and hungry. Eroica is a whopping 100g and, packed with crushed fruit and Italian almonds, is also utterly delicious.

The Eroica story begins in 2002 with 33Fuel founders Warren (English) and Erica (Italian) meeting on a plane from Rome to London, later marrying in Tuscany where they discovered the amazing sweet treat panforte in the coffee shops which instantly became a favourite training snack. Inspired, panforte’s amazing fruit/nut base became the foundations for the mighty Eroica bar.

• Perfect natural protein snack for lean muscle & recovery
• 20g protein and 409 calories per bar
• High protein
• High fibre
• Natural real food formula - no stomach trouble
•Twice the size and calories of ordinary protein bars

Our XXL Eroicas are mighty natural protein bars to help you naturally build lean muscle and support optimal recovery from your sport and training.

How to use

  • Open wrapper, and enjoy!

When to use

  • Use Eroica soon as is easily possible after exercise. This can be immediately afterwards, or you can enjoy it as a tasty snack or part of your next meal that day. They’re amazing with coffee, make an excellent dessert after any meal and at a mighty 409 calories each they’re substantial enough you can even use them as a meal replacement on their own!

Good to know

  • 20g protein and 409 calories per bar
  • High protein
  • High fibre
  • Natural and delicious

Ingredients: Italian almonds, Italian candied peels (orange, melon), coconut sugar, egg white protein, rice protein, caramel, cinnamon, nutmeg, macis, natural edible wafer paper (potato starch)

Nutrition per double bar pack (100g)
Energy 1714KJ/409Kcal
Protein 20g
Carbohydrate 43g
Of which sugars 38g
Fat 17g
Of which saturates 1.47g
Fibre 8g
Sodium 181mg
Potassium 258.4mg
Calcium 86.57mg
Iron 1.11mg

Nutrition per 100g
Energy 1714KJ/409Kcal
Protein 20g
Carbohydrate 43g
Of which sugars 38g
Fat 17g
Of which saturates 1.47g
Fibre 8g
Sodium 181mg
Potassium 258.4mg
Calcium 86.57mg
Iron 1.11mg

Our Eroica Natural Protein Bars, like all 33Fuel products follow our unique Plant-Based & Planet-Based® approach because plant-based and vegan formulas aren’t just better for performance and health, they’re also better for the planet.

Note: Eroica is the only 33Fuel product using any animal products as it contains some egg white. This was the best way we could maintain enjoyment and protein content and stay 100% natural. We’re now developing the formula to make it totally plant-based - until then, enjoy the original

All Eroica Natural Protein Bars also:


• Have fully recyclable packaging
• Are delivered packed in plain, recyclable packaging. Fancy delivery packaging’s rarely recyclable and only wastes resources
•Help reforestation. A portion of all 33Fuel sales go to One Tree Planted to help fund their reforestation efforts around the world

We’ve been crafting award-winning natural sports nutrition at 33Fuel since 2012 and everything we do is lead by our Fuelosophy for Performance, Health and a Fitter Future.

All 33Fuel products live this Fuelosophy so you can always buy Eroica bars with confidence knowing they will fuel your performance today, your health tomorrow and help build a fitter future for you and the planet

FAQ - Protein Bars

Protein bars are a convenient way of managing your protein intake without having to prepare multiple meals. If you are active, looking to gain lean muscle or need to recover from your sport, protein bars make it easy for you to get the protein you need and can also make a good snack option in your busy day

Yes, you can absolutely use our Eroica protein bars as a meal substitute, or as part of a meal depending on your overall calorie needs

Protein bars made with ultraprocessed ingredients can be unhealthy as these ingredients can have damaging side effects. This is why our Eroica Protein Bars are 100% natural and use only real food ingredients to look after your performance and your health

Rethink your Protein Bar

33Fuel Protein Bars

Delicious natural protein bars, for your Performance, Health and a Fitter Future - it's our Fuelosophy. Since 2012

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