accessibility mode: off


Rated 4.0 out of 5
2 Reviews

Quick Tip: Grab an original Energy Gel for daily training and ROCTANE to amp-up your performance.

Hoppy Trails Perfectly balances flavorful hops and milder citrus notes to complement your other GU favorites. We know the longer you’re out on the trail chasing personal bests, the more flavor variety your taste buds crave. So we’re always crafting delicious flavors made up of sweet, sour, salty, savory, and bitter taste qualities. Tastes that take you down memory lane, keep you fueling, and unlock your potential. HOPPY TRAILS TO YOU.


Rated 4.0 out of 5
2 Reviews

Tasty and Portable Energy for Athletes

To avoid bonking while exercising, you need a portable source of easily digestible carbohydrates to fuel your muscles. GU Original Energy Gels and ROCTANE Energy Gels pack quick, effective, and sustained energy to meet the demands of all types of activity. All Energy Gels are Vegan, Gluten Free, and Kosher. Jump to full details


Regular price $ 36 $ 36 Sale

The Gu Crew



Bonking Doesn’t Solve Itself

GU Energy Gels are crafted to supply both energy and key nutrients like electrolytes and amino acids to keep you feeling strong and energized. The precise blend of complex and simple carbohydrates will fuel you up, so you feel good, longer. Our huge variety of delicious flavors will save you from flavor fatigue, so you can stick to your nutrition plan and keep going.

The Original Energy Gel

Our Energy Gels delivery the ingredients you need packed in a form that’s tasty, portable, and easy-to-digest. It sounds simple, and it is for you. When you’re working out, you need easy-to-digest calories fromcarbohydrates that deliver immediate and sustained energy while reducing risk of stomach distress. When you're fueled-up, you feel better and perform better.

The ROCTANE Difference

ROCTANE Energy Gels are designed for long-duration and high-intensity activities, when you’re trying to up your mileage or push yourself further. But what does that really mean? It means that ROCTANE Energy Gels are packed with up to three times as much sodium (depending on the flavor), and three times as many branched-chain amino acids as compared to our original Energy Gels. Learn more about the ROCTANE difference here.

May reduce mental fatigue and help decrease muscle damage during exercise Delivers ready-to-use energy for athletes and can delay bonking by sparing glycogen stores Helps enhance performance by increasing focus and concentration while training or racing
✝ These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease. * Some flavors with caffeine, some flavors without added caffeine



Energy Gels provide portable and easy-to-digest calories from carbohydrates that deliver immediate and sustained energy without the stomach distress.

GU Energy Gels use a combination of simple and complex carbohydrates. Carbs become the main source of energy as our bodies transition from sedentary to an active state and exercise intensity increases.

The body does have a limited carbohydrate supply, but not enough to sustain higher intensity activity for long periods of time. Thus, as you deplete your carb supply, performance suffers. You need energy in the form of carbohydrates to keep going in longer, more intense efforts.

A ROCTANE Energy Gel contains 3x the BCAAs and 2x the electrolytes compared to our original Energy Gels. They also contain the amino acids taurine (to help maintain heart contractility and improve cardiac output during long exercise sessions) and beta-alanine (to help promote formation of the intramuscular buffer carnosine). ROCTANE Energy Gels deliver the same combination of carbohydrates and same number of calories. ROCTANE Energy Gels are a key tool for high-intensity or prolonged activity when nutrient depletion and muscle damage occurs rapidly.

Carbohydrates are efficient energy, and we use a blend of carbs to deliver more energy into the bloodstream as efficiently as possible. Our system of dual-source carbohydrates provides an "express lane" for each carb to deliver energy to your body much quicker than a single source of carbs, which helps you avoid "the bonk" during training and racing.

We pack 100 calories into our Energy Gels because, in general, the body can digest roughly 120-240 calories per hour during exercise. If you tried to eat more, the body would divert blood from your muscles back to the gut to handle the excess food/calories. If your metabolism is slower, then one Energy Gel every 45 minutes works just fine. If you have a faster metabolism, try ingesting one Energy Gel every 30 minutes and see if it agrees with your digestion system. We always recommend practicing your nutrition plan to determine what works best for you.

Rip open the top and squeeze the entire packet into your mouth - don't save half of it for later. It's also completely appropriate to "sip" the Energy Gel over the course of a couple minutes rather than slamming the it all at once. Our Energy Gels were designed to be taken in one shot to provide you with maximum benefits.

Sure! While GU Energy Gels were designed for endurance sports, they can be used anytime you need energy to fuel a workout, regardless of what type. Exercise is either aerobic or anaerobic, but you're burning calories either way.

GU Energy Gels and ROCTANE Energy Gels come in both caffeinated and non-caffeinated flavors. Caffeine is more than just a morning pick-me-up. Strategically adding caffeine to your nutrition plan before and during exercise can help keep your mind sharp, decrease perceived effort, boost your endurance, and delay fatigue. Click here to read more about caffeine for endurance athletes.

Yes, but well below zero. They will thicken in cold weather, so keep your Energy Gels close to your body to keep it warm.

Right away! The fructose converts quickly into an energy molecule that your muscles can tap within minutes. The maltodextrin, which makes up 70-80% of the carbohydrate blend (depending on flavor), takes several minutes longer. Because of this delay, your muscles enjoy a steady stream of energy instead of one gigantic sugar rush and a corresponding crash.

Yes, if they're playing sports, on a hike, or active, GU Energy Gels can help kids just as much as they help you. You may want to keep them away from flavors that contain caffeine, though.

GU Energy Gels and ROCTANE Energy Gels are both kosher certified, gluten-free and vegan-friendly.

ROCTANE Energy Gels were designed to help provide nutritional support for prolonged and/or more intense exercise. Therefore, you will find ROCTANE Energy Gels especially beneficial during exercise which requires extra recovery time and/or where you need help with preventing fatigue, increasing concentration, focus, and decreasing perceived effort.

When you are going big or the workout is going to require more of you because of the weather, terrain, environment, intensity, etc - use ROCTANE Energy Gels. During a more typical workout - use original GU Energy Gels.

If you already use ROCTANE Energy Gels, you can substitute two-and-a-half ROCTANE Energy Gels for one serving of ROCTANE Energy Drink Mix. Remember, the body can typically handle around 120-240 calories per hour, so keep this in mind when combining the two. This will help tailor energy intake to your needs and provide the beneficial ingredients found in both the gel and drink. While many ingredients are similar in the two products (carbohydrates, BCAAs, and caffeine) each has unique ingredients which may also help improve performance. Therefore, using both products will help provide every nutritional advantage possible to athletes who demand the best from themselves and their nutrition.

You find 100 calories of carbohydrates in both ROCTANE Energy Gel and GU Energy Gel because there's no reason to add more. The gut can only absorb so many calories at a time during exercise, especially when most of your blood is being delivered to your hard-working muscles. If you add too many calories during intense exercise, your body can't send enough blood to your gut to digest the carbs, making your gut cramp, forcing you to slow down.

No. ROCTANE Energy Gel is designed to help provide added nutritional support for prolonged exercise, which is why there are additional amino acids and sodium. However, they have the same number of calories (100) per gel as our original Energy Gel.

ROCTANE contains more sodium than the original GU Energy Gel and sodium is the main electrolyte lost in sweat. Supplementation with sodium can help prevent cramping as well as minimize the chances of hyponatremia.

The additional amino acids in ROCTANE Energy Gel serve several important functions, including acting as a fuel source for working muscle, and helping promote muscle recovery following exercise. ROCTANE Energy Gel contains branched-chain amino acids that have been shown to help prevent central fatigue by competing with tryptophan for transport across the blood brain barrier. They also contain the amino acids taurine (to help maintain heart contractility and improve cardiac output during long exercise sessions) and beta-alanine (to help promote formation of the intramuscular buffer carnosine).

chase with water approximately 5 minutes before the start. It is important to practice with what you plan to use during your race, too. Your gut adapts to digest and transport dietary carbohydrate if "trained" to do so by eating carbohydrate during your training sessions. So, rule of thumb, whatever you're using during training, plan to race with the same thing to help optimize your personal performance on race day.


How Long Are You Going

0 - 1 Hour 1 - 2 Hours 2 - 3 Hours 3 - 4 Hours 4 - 5 Hours

0 - 1 Hour of effort

When you're exercising for an hour or less, it's important to start your workout well hydrated and energized. Eat one Energy Gel five-minutes before you start to top off your energy stores. It's best to hydrate in the hours before you start, not right before you start. 

  • 1

  • 16oz

1 - 2 Hours of effort

When exercising for more than an hour, it's important to refuel along the way.  Eat one Energy Gel five-minutes before every 45 minutes along the way. Hydrate with 32 oz of water to help your body process your foods and keep your muscles fueled.

  • 2

  • 32oz

2 - 3 Hours of effort

As you increase duration, your body needs more. Eat an Energy Gel five-minutes before and every 45 minutes along the way. Grab a ROCTANE Energy Gel to add more BCAAs for your muscles and more electrolytes for hydration. Add electrolytes with Hydration Drink Tabs or ROCTANE Electrolyte Capsules. Aim to drink 48 oz if you're out for three hours.

  • 2

  • 48oz

3 - 4 Hours of effort

During long efforts, it's impossible to replace everything you're burning, but you can maximize your performance by eating as much as your body can comfortably process. As a baseline, fuel with one ROCTANE Energy Gel five-minutes before every 45 minutes along the way. Supplementing your energy with ROCTANE Energy Drink Mix can help you fuel while hydrating, and it will boost the amount of muscle-protecting BCAAs you're consuming. 

  • 5

  • 64oz

4 - 5 Hours of effort

When you're exercising for five hours or more, consuming as much as your body can process can help maximize your performance. As a baseline, fuel with one ROCTANE Energy Gel five-minutes before every 45 minutes along the way. Supplementing your energy with ROCTANE Energy Drink Mix can help you fuel while hydrating, and it will boost the amount of muscle-protecting BCAAs you're consuming. 

  • 7

  • 80oz


Let us know how you GU for it!

average rating 4.0 out of 5
Based on 2 reviews
  • 5 Stars
    1 Review
  • 4 Stars
    0 Reviews
  • 3 Stars
    1 Review
  • 2 Stars
    0 Reviews
  • 1 Star
    0 Reviews
50% of reviewers would recommend this product to a friend
2 Reviews
Rated 3 out of 5
Review posted

Good product, expires to soon

I have been using Gu for a while, they're excellent but I bought this kit that arrive a week before it's expiration date. Even though is a web special, i think that's not correct!

Was this helpful?
Rated 5 out of 5
Review posted

An awesome deal at an awesome value!

Aloha! The contents of the GU box are exactly what you see in their advert picture. The dollar value of the contents sold individually would cost about twice as much as what they charge for them in the sampler pack. The only thing to watch for are the expiration dates on the boxes. I noticed that their shelf life were a bit short on the gels and the chews. Make sure they don't expire on you before you even get to use them. The drink tabs had plenty of shelf life left. All in all, a tremendous value. I ordered 5 boxes for myself to stock up for this year's races and training. Aloha!

Was this helpful?

Nutrition System

Complete Your Kit