ATHX is a UK-based functional fitness event that combines CrossFit-style training, strength challenges, and endurance-based circuits. It’s designed to test all-round athletic performance.

Why did MaxiNutrition partner with ATHX?

ATHX athletes train with intensity and purpose — just like our community. The partnership reflects our shared values: clean performance, serious training, and athlete-first nutrition.

Are all supplements Informed Sport certified?

Yes — every product we promote as part of the ATHX range is Informed Sport tested, meaning it’s batch-tested and trusted by elite and drug-tested athletes.

What should I take before, during, and after ATHX-style training?

Before: MaxCharge Pre-Workout or Caffeine Tabs During: Hydration Tabs, EAA After: Max Whey, MaxClear RTD or Sachets for lean recovery

Can beginners use these products too?

Absolutely. While they’re trusted by competitors, these supplements are suitable for anyone training seriously, whether it’s in a gym, hybrid class, or home setup.

ATHX X MAXI

MaxiNutrition has proudly partnered with ATHX, the UK’s premier competitive fitness event, to bring real athletes the supplements they need to perform, recover, and dominate race day. We share ATHX’s commitment to elite-level performance — pushing limits, fueling endurance, and supporting recovery with science-backed, Informed‑Sport certified formulas

As the official supplement partner, we’re ensuring that every ATHX competitor is equipped with trusted nutrition — whether they're gearing up to smash a WOD, race a metcon, or hit a new PB.

Learn more and sign up for ATHX here: athxgames.com

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Why Athletes Trust MaxiNutrition

MaxiNutrition is Informed Sport Certified, meaning every batch is tested for banned substances. Backed by science, our proven formulas are designed to deliver real results. Trusted since 1995, we’ve built over 25 years of expertise and are relied on by athletes at every level from professionals to everyday competitors.

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Official ATHX Supplement Partner – MaxiNutrition

MaxiNutrition is the official supplement sponsor of ATHX – the UK’s leading high-performance functional fitness event. We’re here to fuel your training, recovery, and race day performance with trusted, science-backed supplements.

What is ATHX?
ATHX is a competitive fitness event that blends CrossFit-style workouts, HYROX-inspired movements, and strength challenges. It’s designed to test every aspect of your fitness – and smart nutrition plays a critical role in your performance.

ATHX Supplements: What to Use and When

Pre-Workout Energy
MaxCharge Pre-Workout – for focus and power Caffeine Tablets for quick, convenient energy

During Training
Hydration Tabs – to replace lost electrolytes EAA Powder – for endurance and muscle support

Post-Workout Recovery
Promax Whey Protein – for muscle repair MaxClear RTD and Sachets – fast-absorbing protein Thermobol supports lean recovery and fat metabolism.

MaxiNutrition is the official supplement partner of ATHX, the UK’s leading functional fitness competition. Our Informed Sport certified range is trusted by athletes for clean, high-performance support. Power your workouts with MaxCharge Pre-Workout, stay hydrated with Hydration Tabs, and recover faster with MaxClear RTD or Max Whey. For serious strength goals, explore Creatine Monohydrate and Thermobol.

ATHX Supplements: What to Use and When

Pre-Workout Energy
MaxCharge Pre-Workout – for focus and power Caffeine Tablets for quick, convenient energy

During Training
Hydration Tabs – to replace lost electrolytes EAA Powder – for endurance and muscle support

Post-Workout Recovery
Promax Whey Protein – for muscle repair MaxClear RTD and Sachets – fast-absorbing protein Thermobol supports lean recovery and fat metabolism.