Avoid These 5 Marathon Nutrition Mistakes
Many runners, from novices to seasoned athletes, encounter common nutritional pitfalls that can hinder their performance and overall experience.
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The six steps to improve your next race.
PILLAR Triple Magnesium
Purpose-built recovery supplement designed specifically for active bodies
Shop Now ›Support deep, restorative sleep and overnight recovery with magnesium-rich blends and targeted nutrition for athletes
Sleep is one of the most overlooked aspects of endurance training, yet it’s where the biggest gains are made.
During sleep, your body releases growth hormones, repairs muscle fibres, and restores glycogen stores. Without quality rest, recovery slows, performance drops, and your immune system struggles to keep up.
By nourishing your body before bed, you’re setting the foundation for stronger sessions, sharper focus, and consistent recovery day after day.
Shop Sleep ›[Recovery] is most effective when you’re asleep. I try to sleep a minimum of eight hours a night.

Vitamin D3 + K2
Helps to fill common nutrient gaps, especially during winter or low sun exposure
Shop Now ›Maintain mobility and speed up recovery with targeted nutrition that supports joints, connective tissue and inflammation control
When you train hard, your body’s joints, tendons and ligaments take a heavy load. Overuse, micro-tears and wear-and-tear become real risks.
Injury prevention is much more than avoiding accidents: it’s about strengthening the infrastructure of your movement and giving your body the nutrients it needs to repair and adapt.
By including these nutrients in your routine, you’re investing in resilience, less downtime, fewer aches, and more consistent performance.
Shop Injury ›A consistent morning routine for me always starts with coffee and a scoop of collagen.
Improve your sessions with nutrition that supports power, muscle growth and performance
Strength training isn’t just about lifting heavier, it’s about giving your body the nutritional tools to respond, adapt and build.
When you engage in resistance workouts or high-intensity efforts, your muscles rely on blunt-force systems of energy and then require high-quality substrates to rebuild.
Shop Strength ›If you're working out, it [creatine] just helps you work out a lot harder
Puresport Marathon Pack
Your race fuel sorted in one pack. 9 gels, 3 electrolytes, 1 bottle.
Get Your Puresport Pack ›Stay energised from start to finish, intelligently chosen carbohydrates and gut-friendly formulas to fuel every mile
Efficient fuelling is the cornerstone of endurance success.
When you embark on long training sessions or races, your body’s available carbohydrate stores (glycogen) begin to drop. Without replenishment, your pace slows, fatigue sets in, and your focus drifts.
You’re not only putting calories in the tank, you’re delivering them smartly, keeping your body powered, stable, and ready to perform.
Shop Fuel ›What I do in training, is what I do in the race. I am practicing fueling at home.

Replace what you sweat out. Formulas that replenish electrolytes, support muscle function and keep you performing strong
Proper hydration is more than just drinking water, it’s about replenishing the specific minerals your body loses through sweat (such as sodium, potassium, magnesium and calcium).
When you train hard, especially over long durations or in hot conditions, maintaining optimal fluid and electrolyte balance becomes a critical factor in sustaining performance, preventing cramps and keeping your focus sharp.
When hydration is done right, you reduce the risk of fatigue, dehydration-related slowdown and sub-par recovery.
Shop Hydration ›Hydration is one of the biggest factors that can make or break your race. You can’t get it wrong, or it’ll cost you later.
Accelerate recovery with formulas that rebuild muscle, replenish energy stores and prepare you for the next session
After intense exercise, your body enters a critical recovery phase. During this period your muscles need both carbohydrates (to rebuild glycogen stores) and protein (to repair muscle fibres) in order to adapt and get stronger.
This also helps shift your body out of a catabolic (break-down) state into an anabolic (build-up) state, making your training productive rather than leaving you fatigued or at greater risk of injury.
By giving your body high-quality nutrition soon after exercise (ideally within the first hour), you optimise repair, reduce soreness and set the scene for a stronger next session.
Shop Recovery ›The sooner protein is consumed post-exercise, the sooner the muscles can recover and adapt to the stress of training
Welcome to XMiles, the one stop nutrition shop!
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Try asking Amazon what gel to use on your next session and let us know how that goes.


Made by performance inspired athletes for you to get more out of the day. World Class sports science, for improved stomach comfort, palatability and energy delivery.


Combining research–driven development alongside athlete feedback, Maurten fuels runners, cyclists, and triathletes with a sports fuel range built on Hydrogel Technology.

Adam Bowden - IRONMAN 70.3 Dubai winner

High-performance beetroot supplement delivering a precise dose of 400mg of dietary nitrate per compact 70ml serving.
Designed with athletes in mind, it provides a scientifically backed concentration of nitrates from concentrated beetroot juice, helping to optimise performance and support cardiovascular health.
Squirrel's Nut Butter
Anti-chafe and skin restoration salve made from all-natural ingredients.
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Technical running caps built for comfort, performance, and adventure. Designed for runners who go further, whatever the terrain.
Avoid These 5 Marathon Nutrition Mistakes
Many runners, from novices to seasoned athletes, encounter common nutritional pitfalls that can hinder their performance and overall experience.
Best Energy Gels for your next Marathon
Energy gels are one of the most popular and common products for in-race fuelling. Favoured for being easy to consume on the go and store in your pocket.
Answering Google's Top Marathon Questions
A Marathon is an endurance race run over 26.2 Miles. Popular all over the world, famous races include the TCS London Marathon and Boston Marathon.
Nutrition Guide - Road Running
It is not a requirement to take on additional nutrition during a shorter distance race, it is purely dependant on the time you expect to be running for, and personal preference.
At XMiles, we’re a team of runners, cyclists and fitness enthusiasts who live and breathe endurance, and we’re here to help you get the most from every session.
One place for everything.
We bring together your favourite nutrition brands alongside new and exclusive names you won’t find anywhere else. With over 110 brands to choose from, you can build your perfect fuelling plan, all in one place.
Mix & match made easy.
Our mix & match system means you can try, test and tailor your nutrition without committing to a full box. Combine gels, drinks and bars from different brands and still save with our quantity discounts. The more you buy, the more you save.
Built by athletes, for athletes.
Our team is always learning, testing and training, so we know what works. Whether you’re chasing a PB, training for an Ironman, or simply staying active, we’re here to support your performance, recovery and everything in between.
Join the journey and let XMiles help you stay Endurance Fuelled.