GU Energy Gel
GU is simple. Simple is fast. Simple to take, simple to digest, GU Energy Gel provides just what you need for premium exercise fuel and none of the extras that slow you down. GU takes you where you want to go, fast.
GU Energy Gel provides athletes with a dose of 100 calories to deliver high-quality, easily-digested and long-lasting energy for athletes in every sport and at all levels.
Everything inside each packet of GU is engineered to do one simple thing: provide your body with the essential nutrition it needs to keep going for miles and miles and hours and hours. It goes down easy, and it goes to work fast so you don't have to slow down.
|GU is proud to be the official energy gel and energy chew of the world’s premier triathlon series. Gu's industry leading GU Energy Gel, Roctane Ultra Endurance Gel, and GU Chomps will be on course for every U.S. Ironman and Ironman 70.3 and 5i50.|
What's in it?
- Carbohydrates - GU provides athletes with a dose of 100 calories in the form of 70-80% maltodextrin and 30-20% fructose (The ratio depends upon the flavor.). Why the mix? It’s a complex carbohydrate, and studies have shown that some complex carbs are actually digested faster than simple sugars like table sugar and honey.
- Amino Acid Blend - GU features a unique blend of amino acids to combat muscle fatigue, accelerate the conversion of carbohydrates into usable energy, and maintain mental focus.
- Electrolytes - Sodium and potassium to replenish what is lost during strenuous activity.
- Caffeine - Some GU flavors are caffeinated while others are not. We add caffeine for two reasons: It acts as a stimulant and it lowers the perceived effort.
Ingredients / Nutrition
Maltodextrin (Glucose Polymers), Filtered Water, Fructose, GU Amino Blend (Leucine, Valine, Histidine , Isoleucine), Sodium and Potassium Citrate, GU Antioxidant Blend (Natural Vitamin E And Vitamin C), Citric Acid, Calcium Carbonate, Sea Salt, Contains Preservatives [Sodium benzoate, potassium sorbate], Fumaric Acid, GU Herbal Blend [Chamomile, Cola Nut (Has Caffeine), Ginger], Pectin.
20mg of caffeine.
Both GU Energy Gel and our new Roctane Ultra Endurance Energy Gel pack 100 calories into every packet. 100 calories is an ideal serving size to suck down 15 minutes before training or racing in order to top off your electrolyte and glucose stores, followed by one every 30-45 minutes along the way, washed down with a few sips of fluid.
For optimum results, always drink at least 24-30 ounces of fluid per hour during training and racing. Exact GU intake depends on the intensity of your pursuit and your body weight and fitness level. The fitter you are and the more efficient your metabolism, the more GU you can eat each hour, up to approximately 340 calories every 60 minutes.
Combine GU with Roctane Ultra Endurance Gel, GU Electrolyte Brew and GU Recovery Brew for the ultimate in sports hydration, fueling and recovery. Take one gel 15 minutes before training or competition and then one gel every 30-45 minutes during exercise. Drink Electrolyte Brew throughout your training or racing, and drink Recovery Brew within 30 minutes after you’ve stopped.
How's it different?
An optimal blend of carbohydrates, the proprietary GU amino blend, and a full serving of Vitamin C & E. Oh yeah, did we mention taste? GU Energy Gel has the time-tested consistency and delicious taste that athletes have come to expect from the original energy gel.
How do I use it?
GU should be consumed 15 minutes before and then every 45 minutes thereafter.
Learn More - GU Energy Gel
There are only 100 calories per packet, yet I burn through 100 calories in 10 minutes. Shouldn’t I eat more than one every 30-45 minutes?
We limited GU to 100 calories because, in general, the body can digest roughly 350 calories per hour during exercise. If you tried to eat more, the body would divert blood from your muscles— say “buh-bye” to a personal record—to handle the excess food. If your metabolism is slow, then one GU every 45 minutes works fine. If you have an athlete’s metabolism, try ingesting one GU every 30 minutes and see if it agrees with you.
How do you eat GU?
Rip open the top and squeeze the entire packet into your mouth—don’t save half of it for later. GU’s recipe of carbohydrates and amino acids was created to be taken in one shot to provide you with maximum benefits.
How should you use GU to help you recover from hard training or racing?
When you stop, go ahead and eat a pack of GU, even if it’s been less than 30 minutes from your last GU shot. Now that you’ve stopped exercising, your stomach can handle those calories and needs them to start restoring your muscle glycogen—essentially the body’s instant fuel reservoirs.
Can I use GU for a strength workout or even yoga?
Sure. While GU was designed for endurance sports, it can be used anytime you need energy to fuel a workout. It can also serve as a 100-calorie pick-me-up if you’re dragging or simply need a snack to carry you through until your next meal.
How does the caffeine in GU help me?
Caffeine consumption during exercise improves performance in several ways: it sharpens focus and perks you up; but more importantly, it helps the body produce more power, reduce the pain of hard efforts, and may even tap fat for fuel during exercise. All of this prolongs your ability to exercise at a high intensity. We use just enough caffeine to jump start this benefit and no more. GU Energy Gel comes in both caffeinated and non-caffeinated flavors. Strawberry Banana, Lemon Sublime, Mint Chocolate, and Peanut Butter do not have any caffeine in them. Vanilla Bean, Chocolate Outrage, Triberry, Mandarin Orange, and Just Plain all have 20mg of caffeine per packet. Espresso Love and Jet Blackberry have 40mg of caffeine.
Does GU freeze?
Yes, but well below zero. It does thicken in cold weather, so keep GU close to your body to keep it warm.
How long does GU take to work?
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.
Is GU safe for children?
Yes, if they’re playing sports, on a hike or just being active, GU will help kids just as much as it helps you. You’d probably want to keep them away from the flavors that contain caffeine; no need to make them more hyperactive.
Can my dog eat GU?
We don’t recommend it. Maltodextrin is corn-based and corn is not recommended for dogs—many are actually allergic to corn.
Is GU Energy Gel Kosher?
GU Energy Gel, Roctane, GU Electrolyte Brew, and GU Recovery Brew are all certified Kosher. Chomps are not.
Maltodextrin & Fructose: GU’s Carbohydrate Formula for Success
GU provides athletes with a shot of 100 calories in the form of 70-80% maltodextrin and 30-20% fructose (The ratio depends upon the flavor.). Why maltodextrin? It’s a complex carbohydrate, and studies have shown that some complex carbs are actually digested faster than simple sugars like table sugar and honey. This matters because the quicker your body can tap these carbs, the less blood needs to be diverted away from your muscles to the stomach to digest them. This benefit also comes into play during recovery, as a packet of GU eaten just after exercise goes straight to work replenishing your muscle glycogen stores—the energy source first tapped by the body during intense physical exertion. Fructose is the principle sugar in fruit, and we use it because your stomach processes it faster than the maltodextrin, yet it doesn’t produce a sugar high like you experience with simple sugars. We don’t use more fructose because too much of it can upset your stomach and draw precious blood away from your muscles. Fructose also enhances the flavors—it’s what makes you crave GU. But we don’t make it too sweet. That’s because studies have shown that our mouths become highly sensitive to sweet tastes after extensive exercise. As a result, what tasted sweet at the beginning of exercise will, two-plus hours later, taste overly sweet and become unpalatable. GU, on the other hand, will taste perfect, which means you’ll continue to eat and keep your body fueled.
GU Amino Acid Blend: Puts the “Long” in “Longer”
In addition to continuously resupplying your body with fuel, GU features a unique blend of amino acids to combat muscle fatigue, accelerate the conversion of carbohydrates into usable energy, and maintain mental focus.
When you stress your muscles, they fatigue and experience a rather unpleasant side-effect, metabolic acidosis (a.k.a., “the burn”). Both are primarily due to proton (H+) build-up1. In our research, we found studies2 that demonstrate how various naturally occurring proteins packed with histidine have buffered the muscles’ acid build-up. That’s because the histidine residues contained within these proteins are able to neutralize those nasty H+ ions, and therefore reduce the effects of acidosis. By adding histidine, we’re encouraging the body to produce more of these buffering proteins and keep your muscles pumping harder longer. Also, the less damage done to your muscles, the faster they recover.
Citrates (potassium citrate, sodium citrate, and citric acid):
During physical exertion, the body requires energy to keep moving. Central to the production of energy is the citric acid cycle (Krebs cycle), which is responsible for the breakdown and processing of amino acids, glucose, and fatty acids into ATP3, the actual energy molecule that fuels your muscles. GU’s citrate blend contributes to the citric acid cycle and promotes greater efficiency in the production of ATP. Why? Because the faster you can produce ATP, the sooner your muscles can use it.
Branched Chain Amino Acids (BCAAs—leucine, valine and isoleucine):
When your heart and muscles are working hard, BCAAs become a major fuel source in addition to promoting protein synthesis—the converting of protein into fuel—as well as setting the table for rapid glucose biosynthesis3,4. GU’s BCAAs also thwart muscle catabolism, a distressing natural situation where the body starts breaking down its own muscle to use as fuel. In addition, research5 suggests that BCAAs supplementation may delay the onset of central fatigue by blocking the transport of tryptophan into the brain, thus limiting the production of serotonin. This key neurotransmitter has been linked to depression of the central nervous system function which leads to feelings of sleepiness and fatigue6. By blocking this effect, GU helps you stay more alert and on top of your game.
Two C’s (Calcium and Caffeine) for High Performance:
We put calcium into each packet of GU because you lose calcium during exercise, and your body needs it to thrive. Research has shown that there may be a link between muscle fatigue and calcium loss, so adding it back to your body is a good thing.
GU uses 20mg of caffeine (Strawberry Banana and Lemon Sublime have none, while Espresso Love has 40mg of the stuff) for two reasons: It acts as a stimulant— let’s call this the caffeine-kick effect—and it helps the body metabolize fat during exercise, providing the body with an additional fuel source. 20mg is an ideal amount of caffeine to keep you alert and burning fat without getting a case of the jitters. The extra caffeine in Espresso Love is there for those days you really, really need help jump starting your workout.
GU’s Antioxidant Blend: Saving You from Yourself
Each packet of GU comes with a healthy dose of vitamin C and vitamin E (how much depends on which flavor you choose). They’re there because antioxidants provide a defense system against free radical damage to muscle tissues caused by the increased oxygen (oxidation) found in working muscles7. They won’t boost your performance, but they protect against the muscle tissue damage that comes from a hard workout.
GU’s Herbal Blend: A Little Soothing Love to Make Life Easier
Towards the end of GU’s ingredient list is its Herbal Blend comprised of chamomile, a natural anti-inflammatory, and ginger, which naturally soothes the stomach as it quickly goes to work digesting the contents of each packet of GU.
And that’s it. Everything inside each packet of GU is engineered to do one simple thing: provide your body with the essential requirements it needs to keep going for miles and miles and hours and hours. It goes down easy, and it goes to work fast so you don’t have to slow down.
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Certified banned substance free.
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