If you’re a trail runner you know that a large part of those long grueling runs is the mental game! When you’re out in the forest pushing yourself to your limits, the last thing you want to be thinking about is your Nutrition.
Most athletes can recall a time during a race they’ve had a bad experience which caused them to DNF or perform much poorer than expected. Athletes want to go further and go faster without worrying about their nutrition intake or gut distress. Fixx Nutrition has developed a range of products to take the trickiness away. The products include CrampFix, a rapid muscle cramp relief product that will come in handy in those long runs or when the elevation is too much for your calves to handle. For an energy boost we also have our Cold Brew Espresso Shots and our Fuel X, an ALL-IN-ONE Endurance Fuel.


Fuel X Endurance drink mix contains everything you need to stay energized, hydrated, and replenished during training and racing.

The ELECTROLYTES in Fuel X are formulated to replace everything you lose during exercise. Each serve also contains 47g carbohydrates200 calories so … no sticky bars, chews or gels needed! Gut friendly!

1 Scoop of Fuel X = 1 Energy Gel

Find out more about FUEL X here.

fuel x tropical being poured into flask


CrampFix provides rapid cramp management and was specially developed to help high performing athletes to achieve their performance goals. One 15-20ml shot of CrampFix works within 30 seconds to 2 minutes to alleviate cramps and get you to the finish line. All natural, gut friendly, gluten free & vegan friendly.

Find out more about CrampFix here.


A double shot COLD BREW Espresso Coffee with added Energy – the ultimate FIXX me up BUZZ!

A silky, velvety brew containing 150mg of naturally occurring caffeine PLUS 16g of carbohydrates. Gut friendly & served in a handy travel size. This contains only all-natural ingredients, with a sugar free option available!

man drinking a cold brew coffee shot

What Our Customers Are Saying

‘The benefit Fuel X has over other electrolyte hydration products is it is also a full liquid nutrition product. Fuel X contains all the carbs and calories necessary to be a complete fuel product, without the addition of sticky gels. This makes fuelling on race day so much simpler – for me it’s 1 bottle per hour, and that’s all the nutrition I need to keep me going.’

– Nick Hall

What Our Customers Are Saying

If you want to fuel smart then use Fuel X. I have trouble with my gut but since using Fuel X and lots of it on 3-4hr rides I haven’t had any dramas with my gut. The taste is amazing but not too sweet, it easily dissolves in a few shakes of your water bottle. Do yourself a favour and fuel with Fuel X.

– Rod Miller

What Our Customers Are Saying

Nutrition and hydration is the game changer in how your day on the trail can pan out. Too sweet or too heavy could be you in the gutter wishing someone was there to hold your hair. With hundreds of kilometres and plenty of hours on my feet, I can safely say Fixx nutrition has never put me in the gutter – it’s kept me going strong checkpoint after checkpoint. With races coming back, I’m looking forward to getting the race advantage with Fixx.

– Andrew

What Our Customers Are Saying

Great flavor, mixes really easily, great performance and allows me to continue to perform at my best in long events and training days.

– Brett Carlsson

I ran the 75k event on the Saturday and must say, without much time to train with the products before the race I opted to use the Fuel X Pro (pear flavour and occasionally the matcha green tea) for my complete nutrition plan….WOW!! Absolutely fantastic – it works!!! It kept me going for the 11hr duration plus No flavour fatigue either

So looking forward to seeing you guys at Ultra Trail Australia this year!!

– Neil Spreitzer (4th place Buffalo Stampede – 75km Ultra SkyMarathon)

Fixx Nutrition On course at Gold Coast Marathon, gc50 running festival, ultra trail australia


How can I sample the different products?

We have small and large sample packs available to purchase containing a mixture of our products. Check them out here.

How does CrampFix work?

CrampFix works rapidly to fix and prevent muscle cramps by targeting the overactive nerves that are causing the muscles to cramp. We don’t know exactly what causes muscle cramps but we know how to fix them! There is an association between premature muscle fatigue, exercise induced muscle cramp, stimulation of sensory nerves and interruption of alpha neutron (nerves) firing.

A mouth-to-nerve-to muscle connection.

When should I drink CrampFix?

Drink one shot of CrampFix 5-10 minutes before activity to prevent cramps.

Drink when the cramp strikes or at first signs of cramp for rapid relief. If the muscle cramp is not relieved after a few minutes, repeat dose.

What does CrampFix taste like?

One of the main ingredients is acetate (vinegar) which has a very strong and dominating taste. Most athletes find they get used to the taste after using the product a few times.

Remember, if CrampFix tasted good, it wouldn’t work!

When should I use Fuel X?

This product is designed to be used during training or racing to hydrate and replenish your body of the nutrients lost as well as provide a source of energy.

What does Fuel X taste like?

Fuel X is an all natural product with no added sweeteners. This product was designed to be very mild to avoid the ever so common flavour fatigue athletes hate. Fuel X has no aftertaste and comes in 5 different flavours so there is something for everyone!

Flavours include: Lemon-Lime, Pear, Tropical, Matcha Green Tea and Nude (Unflavoured).

Can I mix Fuel X with gels, bars, chews etc?

You can mix the Fuel X range with other sports products though Fuel X contains everything you need to stay energized, hydrated, and replenished. 

No sticky gels, bars, or chews are needed! All Fuel X products are a complete source of nutrition.

What is the difference between Fuel X and Fuel X Pro?

Fuel X contains all the electrolytes, hydration & energy you need to keep you going! The electrolytes in Fuel X are formulated to replace everything you lose during exercise!

Fuel X Pro is a superior source of nutrition and contains the same ingredients as Fuel X PLUS premium amino acids for improved performance and endurance. 

We recommend using Fuel X Pro for long sessions and on race day for a competitive edge!

How long will the Fuel X bags last once opened?

The bags have a 3 year expiry date. They should be kept well sealed, protected from moisture, light and heat.