Best Energy Bars for Triathlon

Triathlon fuelling is a balancing act. You need enough carbohydrate to power your swim, bike and run, but you also need something that sits comfortably in your stomach, especially before the gun goes or during a long ride.

Energy bars can be a smart part of your strategy. They are portable, easy to portion, and ideal in the build-up to the race or on the bike leg when intensity is steadier.

When To Use Energy Bars In A Triathlon

Bars are not always ideal at high intensity. On the run leg, most triathletes switch to gels or drinks for faster absorption. Where bars shine is:

• 2 to 3 hours before the race as part of breakfast
• 60 to 90 minutes before the start to top up glycogen
• During the bike leg, especially in Olympic, 70.3 or full-distance events
• In long brick sessions during training

Your goal is typically 60 to 90g of carbohydrate per hour, depending on duration and how well trained your gut is. Bars can contribute a portion of that, supported by energy gels and carbohydrate drinks.

If you are unsure how much you personally need, our Nutrition Calculator can help you dial in your targets.

What To Look For In A Triathlon Energy Bar

Not all bars are created equal. For triathlon, you want to prioritise:

• Carbohydrate content of 30 to 45g per serving for meaningful energy
• A mix of fast and slower-release carbs for steady fuel
• Low fibre and moderate fat before racing to reduce gut risk
• Easy-to-chew texture, especially on the bike
• Practical size that fits in a tri-suit pocket

For longer events such as Olympic distance, 70.3 or full-distance triathlons, bars are usually best used pre-race or during the bike leg, alongside gels and drinks to hit your hourly carb targets.

Here are some great choices for your triathlon:

VOOM POWR Plant Energy Bars

VOOM POWR Plant Energy Bars with Beetroot are plant-based energy bars that combine real fruit juices, oats and beetroot to deliver both quick and sustained carbohydrates. Each bar provides around 28g of carbs and is rich in naturally occurring dietary nitrates from beetroot (about 200mg per bar).

These nitrates convert to nitric oxide in the body, which can support increased blood flow and oxygen delivery during endurance exercise.

226ERS Race Day Choco Bits

226ERS Race Day Choco Bits are naturally formulated energy bar bites crafted to provide sustained, clean energy. Their soft texture and natural sweetness make them easy to chew even when intensity is ramping up.

The blend of dried fruits delivers fast to steady-release energy, while the addition of nuts provides a small amount of healthy fats and a touch of protein to support stable blood sugar levels.

TORQ Explore Flapjack

TORQ Explore Flapjack is a soft, moist and syrupy energy bar made from organic, plant-based ingredients. With a blend of organic oats, raisins, golden syrup and energy-rich maltodextrin, these flapjacks deliver quick and sustained energy.

While slightly more substantial than bite-sized energy bars, they provide a hearty carbohydrate boost and a satisfying texture that works well as part of pre-race fuelling.

FAQs

Can I eat these bars during the run leg?

They can be eaten, but most triathletes prefer gels or drinks on the run because they are easier to digest at higher intensities.

Are added sugars present in these bars?

None of the three options rely on added sugar syrups; they are naturally sweetened through fruit and juices.

How many bars should I carry on the bike?

That depends on your carbohydrate target for the bike leg. Use your hourly carb goal to work out how many bars or portions you need and supplement with gels or drinks as required.

Summary

Energy bars can play a valuable role in triathlon fuelling, particularly before the race and during the bike leg. Look for options that are carbohydrate-focused, easy to digest, and practical to carry.

The key is matching the product to your pacing strategy and practising your approach in training.