Great
Tastes great, overall great!
Performance | Vegan
Use the code HOTDEALS2026 at checkout to get 50% off Fuel₂O!!!
Looking for nutrition fuel for long days on the trails, mountains, at the gym or the crag? Gnarly Nutrition’s Fuel20 is your all-in-one, vegan-friendly solution. Created with fueling, replenishment and recovery in mind.
Gnarly Fuel20 contains 100 calories per 12 oz serving from sucrose and dextrose, two carbohydrates that are easy to digest during big endurance efforts. Research supports that using a combination of sucrose and dextrose increases carbohydrate absorption during exercise more than when a single carbohydrate, like dextrose, is consumed alone. Increased carbohydrate absorption also means improved fluid delivery and better hydration.
Gnarly Fuel2O replaces the electrolytes you lose when you sweat, supplying 250mg of sodium per serving as well as the electrolytes chloride, potassium, magnesium and calcium. Gnarly Fuel2O also contains HMB, a metabolite of the branched chain amino acid leucine, which helps to minimize muscle protein breakdown, resulting in less post-training soreness and a faster turnaround between hard training sessions and races. Gnarly Fuel2O is available in two caffeine-free flavors – Tropical & Limeade – and one caffeinated flavor – Cherry Cola, that are light on flavor, and delicious.

1 scoop of Gnarly Fuel20 is 100 calories.
Mix 1-2 scoops in 12-16oz of water for efforts under 2 hours.
For efforts over 2 hours, mix 2-3 scoops
per 24oz water.
Consume hourly and adjust for length of effort.
Mix 1 packet (200 calories) into 24oz of water, shake vigorously.
Use 1+ packet for every hour of effort over two hours.
Mix 1 packet (200 calories) into 24oz of water, shake vigorously.
Use 1+ packet for every hour of effort over two hours.
*Stick packs are not NSF for Sport or Contents Certified
Other Ingredients: Sucrose, Dextrose, Sodium Citrate, Calcium Lactate, Magnesium Citrate, Natural Flavors, myHMB®, Potassium Citrate, Citric Acid, Sea Salt, Trace Minerals, Malic Acid, Natural Colors, Vegan Vitashine D3.
Nutritional uses of HMB and Vitamin D are licensed to Gnarly Nutrition, LLC under U.S. Patent # 8,815,280, # 9,259,430, #9,539,224, #9,707,241, #9,770,424 and #10,201,551.
Other Ingredients: Sucrose, Dextrose, Sodium Citrate, Calcium Lactate, Magnesium Citrate, Natural Flavors, myHMB®, Potassium Citrate, Citric Acid, Sea Salt, Trace Minerals, Malic Acid, Natural Colors, Vegan Vitashine D3 Nutritional uses of HMB and Vitamin D are licensed to Gnarly Nutrition, LLC under U.S. Patent # 8,815,280, # 9,259,430, #9,539,224, #9,707,241, #9,770,424 and #10,201,551.
Other Ingredients: Sucrose, Dextrose, Natural Flavors, Sodium Citrate, Calcium Lactate, Magnesium Citrate, myHMB®, Natural Colors, Potassium Citrate, Citric Acid, Sea Salt, Trace Minerals, Caffeine (from Green Tea Extract), Malic Acid, Vegan Vitashine D3.
Nutritional uses of HMB and Vitamin D are licensed to Gnarly Nutrition, LLC under U.S. Patent # 8,815,280, # 9,259,430, #9,539,224, #9,707,241, #9,770,424 and #10,201,551.
Gnarly Fuel2O is my all time favorite endurance fueling product. I like all the options, but the Cherry Cola flavor is amazing and my favorite. It's something I can literally drink all day to power long training runs or ultramarathon races, with no fluctuation in energy and no distress on my stomach. It's also NSF certified for sport, so I don't have to worry about it being contaminated with a banned substance - a huge piece of mind! - Dylan Bowman
Tastes great, overall great!
Whether alpine climbing, ski touring, or trail running, this fuels me all day. The combination of sugars, electrolytes and caffeine are perfectly mixed. Its a low amount of caffeine so I don't get any jitters and I love the light taste.
The Cherry Cola Fuel2O has been my late race gamechanger for carbs. Gnarly has done such a good job with the flavor - not overpowering - but tastes just like flat Cherry Coke. The amount of caffeine in it is perfect.
Unlike some of the other brands, I can pour this directly into the bottle, shake it up, and not worry about the powder clogging up the spout.
I'm a huge fan of Gnarly Hydrate for daily electrolytes and BCAA's on gym/recovery days. Keep up the great work!
Took me a while to get used to the taste, and even now it’s not my favorite. That said, this stuff really does the job - I can drink this before a long tough workout or hot yoga session and feel powerful the whole way through. Skips the depleted feeling afterwards. Wish this tasted a little better, or at least I didn’t have to finish the whole bag!
I take this during hard traing sessions. Helps with energy.