High Calorie Bars for Endurance, Expeditions and Appetite Loss | Phoenix Bars
Flaming Phoenix
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High-Calorie Bars | Phoenix Bars
Phoenix Bars are specialised high-calorie nutrition bars designed for extreme endurance activities, expeditions, and situations where maintaining adequate calorie intake is difficult. Each compact, lightweight bar delivers up to 557 calories, making Phoenix Bars a calorie-dense food option for athletes, adventurers, and individuals experiencing reduced appetite or unintended weight loss. In these situations, a calorie-dense food option like Phoenix Bars can help increase calorie intake without relying on large meals. Phoenix Bars are also available to customers across Europe and Canada, including the Netherlands, France, Belgium, and Germany.
Up to 557 Calories Per Bar:
A calorie-dense energy bar, each Phoenix Bar delivers up to a substantial 557 calories per bar.
Highly Compact, Lightweight & Portable:
Minimal bulk, maximum energy. Designed to help you save weight and space whilst trekking, mountaineering and during ultra-endurance events - where every gram counts.
Up to 66g of Carbohydrates:
Phoenix Bars are high in carbohydrates - delivering a strategic mix of fast- and slow-release carbs to power multi-day adventures, trail ultras, and high-altitude expeditions.
Can Be Made into Porridge or Smoothie:
Add water or milk (hot or cold) to turn your bar into a nutritious warm porridge or quick recovery smoothie. This approach can be particularly useful during endurance activities and expeditions, where compact, calorie-dense nutrition is important and eating full meals may be impractical.
Easily Digestible:
100% vegan, gluten-free, and GMO-free. Built for easy digestion in high-output scenarios and at altitude, with gut-friendly ingredients that minimise risk of digestive issues - essential for ultra runners and expedition enthusiasts alike.
Easy-To-Eat & Open:
Soft texture that melts in your mouth - easy to eat even with gloves or in sub-zero conditions.
Tasty Without Being Sickly Sweet:
Six delicious, neutral flavour options - preventing flavour and palate fatigue. Ideal for ultras, offshore sailing, multi-day adventures, or continuous efforts when over-sweetened snacks become unappealing.
Natural Ingredients:
Made from real, whole ingredients like gluten-free oats, coconut oil, pea and soy protein, and plant-based nutrients.
Climate-Resilient:
Won’t freeze in sub-zero temperatures or melt in extreme heat. Built for polar regions, ski touring, ski mountaineering, desert crossings, and jungle heat — a climate-proof energy bar for every type of extreme environment.
Up to 19g of Protein:
Supports muscle maintenance and recovery during and after high-output efforts. Essential for ultra-endurance races, military personnel and multi-day expeditions.
Chopped into Chunks:
Each bar can be chopped into bite-sized pieces for convenient snacking. Perfect for trail ultras, climbing and fastpacking.
8 Vitamins & Minerals:
Packed with 8 essential, naturally occurring vitamins and minerals — including iron, manganese, phosphorus, and B vitamins — plus MCTs from coconut oil for steady, sustained energy.
Altitude Optimised:
Formulated with nutrients that support performance at high-altitude climbing and mountaineering, including iron, vitamin E, B1, and B7 — helping oxygen delivery and energy regulation in thin air.
Sustainable:
Vegan, palm oil-free, and ethically produced with biodegradable packaging and eco-conscious shipping options — perfect for the sustainably-minded adventurer or eco-conscious ultra runners.
Gluten-Free & Vegan:
Ideal for coeliacs, plant-based athletes, and mixed dietary groups — no compromises on performance or inclusivity.
Robust:
Built tough for real-world use. Comes in water-resistant packaging that won’t crush or tear. Made for ultras, mountains, the arctic and everything in between.
Ready to Eat:
No prep, no waiting. Just open and fuel. Perfect for race-day nutrition, emergency scenarios, or when you simply need calories fast.
Long Shelf Life:
Up to 2-year best-before date — great for expedition planning, ultra race drops, or emergency kits.
Made in the UK:
Hand-crafted by an expereinced manufacturer to meet the highest standards in quality, food safety, and performance nutrition — trusted by ultra athletes, mountaineers, and expedition enthusiasts worldwide.
Phoenix Bars Subscription Benefits:
- Simplify your routine with automatic, reliable Phoenix Bar deliveries
- Have direct input on new flavours
- Receive exclusive samples of new flavours
- Enjoy special gifts
- Get priority shipping on every order
- Receive complimentary invitations to events
Nutritional Information
Typical Values (Cherry Bakewell Flavour)
Per 100g / Per Bar (120g)
Energy: 464kcal / 557kcal
Fat: 22.1g / 26.5g
of which saturates: 10.0g / 12.0g
Carbohydrate: 50.1g / 60.1g
of which sugars: 16.2g / 18.2g
Fibre: 3.6g / 4.4g
Protein: 15.2g / 18.2g
Salt: 0.14g / 0.17g
Vitamins & Minerals (%RI*)
(per 100g / per 120g)
Vitamin E (α-tocopherol equiv.): 4.3mg (36%) / 5.2mg (43%)
Vitamin B1 (Thiamine): 0.3mg (27%) / 0.4mg (33%)
Vitamin B7 (Biotin): 8.3µg (17%) / 9.9µg (20%)
Phosphorus: 253mg (36%) / 303mg (43%)
Iron: 2.7mg (19%) / 3.2mg (23%)
Zinc: 1.6mg (16%) / 1.9mg (19%)
Copper: 0.3mg (30%) / 0.4mg (36%)
Manganese: 1.7mg (85%) / 2.0mg (102%)
***For nutritional information of other flavours, please contact us or refer to the images below***
Our Natural Ingredients
Vanilla: Gluten Free Oats (32%), Glucose Syrup (Sulphites), Sugar, Coconut Oil, Soya Protein Isolate (7%), Pea Protein Crisp (6%) [Pea Protein, Rice Flour], Rapeseed Oil, Gluten Free Oat Flour, Emulsifier: Glycerol; Caramelised Sugar Syrup, Natural Vanilla Flavouring (1.3%), Antioxidant: Tocopherol-Rich Extract.
Cherry Bakewell: Gluten Free Rolled Oats, Glucose Syrup, Sugar, Coconut Oil, SOY Protein Isolate, Pea Protein Crisps [Pea protein, Rice flour], Rapeseed Oil, ALMONDS, Glycerine, Plain Caramel [Glucose syrup, Water, Sugar], Cherry Flavouring (1%), Natural Flavouring (0.5%), Antioxidant: Tocopherols
Ginger: Gluten Free Rolled Oats, Glucose Syrup, Gluten Free Oat Flour, Sugar, Coconut Oil, SOY Protein Isolate, Pea Protein Crisps [Pea protein, Rice flour], Rapeseed Oil, Glycerine, Plain Caramel [Glucose syrup, Water, Sugar], Natural Vanilla Flavouring (1%), Ground Ginger (1%), Antioxidant: Tocopherols
Salted Caramel: Gluten Free Rolled Oats, Glucose Syrup, Sugar, Coconut Oil, SOY Protein Isolate, Pea Protein Crisps [Pea protein, Rice flour], Rapeseed Oil, Gluten Free Oat Flour, Glycerine, Plain Caramel [Glucose syrup, Water, Sugar], Natural Flavouring (0.5%), Sea Salt [0.4%), Antioxidant: Tocopherols
Chocolate: Gluten Free Rolled Oats, Glucose Syrup, Sugar, Coconut Oil, SOY Protein Isolate, Pea Protein Crisps [Pea protein, Rice flour], Rapeseed Oil, Gluten Free Oat Flour, Dark Chocolate Drops (5%) [cocoa mass, sugar, cocoa butter, fat-reduced cocoa powder, emulsifier: SOYA lecithin], Glycerine, Cocoa Powder (3.7%) [Acidity regulator: Potassium Carbonate], Natural Vanilla Flavouring, thickener: xanthan gum; acidity regulator: citric acid; preservative: potassium sorbate], Antioxidant: Tocopherols
Apple & Cinnamon: Gluten Free Rolled Oats, Glucose Syrup, Sugar, Coconut Oil, SOY Protein Isolate, Pea Protein Crisps [Pea protein, Rice flour], Rapeseed Oil, GF Oat Flour, Glycerine, Dried Apple Pieces (4%) [Naturally occurring SULPHITES present], Plain Caramel [Glucose syrup, Water, Sugar], Cinnamon (0.6%), Antioxidant: Tocopherols
Allergy Advice: for allergens, see ingredients in bold. May contain nuts, eggs, sesame, peanuts and milk.
I just find Phoenix Bars very easy to store ( based on calorie return ) and I enjoy the eating experience taste and texture.
I tend to re order with the specific intent of use on ultra distance races( I do approx 3-4 a year ) or training days of 4hrs upward. My recent order is for the ARC25 along the South West Coast Path in Cornwall on the 25th Jan.
With this race UTMB also insist as part of the mandatory kit that an emergency amount of calories is carried throughout the race ( not with the intention for normal use ) Phoenix Bars are perfect in calorie quantity and size plus easy to store in bottom of pack for this purpose.
These Phoenix Bars are packed with calories for taking on hiking trips or long runs. To up my calorie intake I really like eating the salted caramel bars, but I’ve also crumbled the chocolate Phoenix bars into porridge in the morning. Delicious!
Have been trialling the new flavours during my Arc of Attrition training & in view of some longer events in summer. Love the fact that 1 single bar meets the emergency calorie requirement of the essential kit list for my distance (c500kcal). Ginger is my favourite (not keen on Cherry Bakewell but that’s personal preference). The bars are high in calories but not overly sweet or gooey. More crumbly in texture (you definitely need fluids with them). They have a little hint of salt crunch which I really like & love that they provide a break from the sickly gels (which have their place) but these come into their own when more substantial nutrition is needed. Would highly recommend for longer runs (>30k) and in the latter stages when you are more likely to need ‘real food’ to supplement other nutrition (I tend to intersperse with carb based drinks & gels or use as a drop bag ‘meal’ that is easily accessible and portable). Ginger flavour has the added benefit of helping with nausea, if that is an affliction in the later stages of long events. I also enjoy the bars post run with a cup of tea, when you can’t quite face/access a meal but know you need some immediate calorie replacement & recovery fuel until that is possible. Have not tried as a porridge as yet … but in multi-day events these would be great due to compact size.
Good flavours, easy to eat, even as porridge. No gastro issues.
I've spent some of time using Phoenix Bars during my training for the Winter Spine Race and I like them. It’s like Lembas bread from lord of the rings, tastes good and the new version less dry than the original. I’m taking them with me for the race. I also like that Flaming Phoenix takes the time to seek feedback, always a great sign of a company.
Phoenix Bars In Action
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Frequently Asked Questions
What are Phoenix Bars?
Phoenix Bars are high-calorie nutrition bars designed to provide a compact, energy-dense food option for extreme endurance activities, expeditions, and situations where maintaining adequate calorie intake can be difficult.
How many calories are in a Phoenix Bar?
Each Phoenix Bar delivers up to 557 calories per bar, making it significantly more calorie-dense than standard energy bars or snacks.
Who are Phoenix Bars designed for?
Phoenix Bars are designed for ultra-endurance athletes, expedition teams, mountaineers and individuals seeking a high-calorie food option during periods of reduced appetite or unintended weight loss.
Are Phoenix Bars suitable for people with reduced appetite?
Phoenix Bars can be suitable for individuals looking to increase calorie intake when appetite is reduced, as they provide a large amount of energy in a small, soft, and easy-to-eat format. Our guide on high-calorie food when eating is difficult explains why calorie density matters when appetite is limited.
Can I order Phoenix Bars in the Netherlands, France, or elsewhere in the EU?
Yes. Phoenix Bars can be ordered from Europe and Canada, including the Netherlands, France, Belgium, and Germany. International orders may be processed by local customs, and you may be asked to pay import VAT or handling fees before delivery.