Frequently Asked Questions
What are Phoenix Bars?
Phoenix Bars are ultra high-calorie, ultra high-carbohydrate flapjacks, meticulously crafted to fuel ultra-endurance athletes and expedition enthusiasts.
Each bar delivers:
- 552 calories
- 66g of carbohydrates
- 18g of protein
They're optimised for ultra-endurance activities such as ultra running, bikepacking, mountaineering, high-altitude expeditions, polar treks, and offshore sailing.
What do people use Phoenix Bars for?
Phoenix Bars are trusted by people tackling some of the world’s most extreme endurance challenges. Common users include:
- Ultra runners
- Bikepackers
- Mountaineers (including high-altitude climbs like Everest)
- Hikers and trekkers
- Offshore sailors
- Ski mountaineers/ski touring
- Polar explorers
- Adventure racers
- Expedition teams
- Anyone needing compact, calorie-dense, and tasty nutrition
What else can Phoenix Bars be used for?
Beyond ultra-endurance, Phoenix Bars have been used to support individuals with specific health or dietary needs, including:
- People recovering from eating disorders
- Individuals with autism or ARFID
- Older adults with reduced appetite
- Those with hypothyroidism
- People with dysphagia
- Anyone aiming to gain or maintain weight
How can I make Phoenix Bars into porridge?
- Crumble or chop the bar into small pieces in a bowl or mug.
- Add cold, hot water or milk, starting with ~60–150 ml.
- Stir until it reaches a porridge-like texture.
- Adjust liquid to your preferred consistency.
Optional: Boost flavour and calories by adding nuts, honey, or dried fruit.
What kinds of achievements have Phoenix Bars fuelled?
Phoenix Bars have fuelled incredible feats, including:
- Completing the Marathon des Sables, the Spine Race & the Dragon's Back
- Summiting Mount Everest, Mount Denali, Toubkal, Manaslu & Lenin Peak
- Rowing across the Atlantic Ocean
- Cycling Land’s End to John O’Groats
- Winning a 250 km Ice Ultra in -40°C
Need Bespoke Advice?
If you need personalised advice on how to use Phoenix Bars to derive the most benefit from our unique flapjacks for any of your training or upcoming challenges, please contact me:
E: jfrost@flaming-phoenix.co.uk
M: 07990 519422
Phoenix Bars In Action
I’ve been really impressed with Phoenix Bars. I was originally planning to use one as my emergency food for UTS 100K, but after trying one on a training run, I quickly realised they could be a bit of a game changer – they really pack a punch!
I had a great time at UTS – came 43rd in 17hrs 20, so was well pleased with that. Given the heat on the day, I ended up taking on way more liquid calories than I’d usually like, which caused a few stomach issues. I still managed a couple of Phoenix Bars in the first half though, and they definitely delivered good energy levels.
Chopping them into chunks works really well– made it easier to get them down without relying completely on gels.
I’ll definitely be using them as part of my fuelling going forward and will be recommending them to my mates.
We learnt about Phoenix Bars at Keswick Mountain Festival and picked up a couple of bars before our 10km run. We both felt amazing on them. It’s so hard to fuel a 50–60 minute high-intensity effort on actual food, but the bars gave us a really clean, steady energy—none of that sugary spike-and-crash feeling.
Then, this weekend, we took them on the Three Peaks. It got intense—force 7 winds on Scafell, freezing rain, pitch dark—and the bars absolutely came in clutch. We had nine between four of us over 23 hours and 48 minutes. At our lowest points, they helped reset us—real fuel we could feel working. One of the guys even said, “I might’ve died if not for that guy.”
Honestly, they felt like energy from the inside out—clean, powerful, and exactly what we needed. We’re all big fans now. Thank you!
Brilliant product that delivers everything it says it is going to. Super tasty, easy to eat, long lasting performance and now my go-to bar. It’s hard to know what else to say other than try it if you haven’t yet given it a go. Perfect.
Great product, my favourite in the market. Speedy delivery
I’ve been using the Phoenix bar now for the last year in preparation for a couple of endurance events. I must say, once you try it, you’ll never go back…
The bar has completely changed my preparation and performance, giving me a long lasting energy boost at no expense of taste. It is super transportable and lasts very well in backpacks, keeping its shape and consistency.
Unlike other products, the Pheonix bar ticks all the boxes and provides me with the macros and nutrients required to sustain and perform under intense strain.
As a side note, James was excellent during the sales process, giving timely updates on delivery and stock. His personal note in my first batch was a nice touch and you really feel appreciated and part of the team.
Best of luck with this product, I genuinely hope it goes on to do great things and reach all those in need. The benefit it adds seriously changes the game and this could help a lot of people achieve the results they’re after.