Top 8 Best Energy Gels for Triathlon

Endurance sports like triathlons demand not only rigorous training but also a well-thought-out nutrition strategy. Athletes must constantly replenish their energy reserves to maintain a high level of performance throughout swimming, cycling, and running stages. Energy gels have become favored by triathletes for their convenient, portable nature and their quick absorption of carbohydrates into the bloodstream.

Deciding on the best energy gel can make a significant difference in an athlete’s performance. What makes an energy gel stand out is its optimal mix of sugars, ease of digestibility, and presence of additional performance-enhancing ingredients such as electrolytes and caffeine. Packaging also plays a role; the gel should be easy to open and consume even when racing at full speed.

When considering which energy gel to purchase, it’s vital to look at the ingredient list and nutritional information. One should ensure the gel does not contain any substances that could lead to stomach discomfort or allergic reactions. Additionally, the type of carbohydrates used, such as glucose or fructose, can influence energy release rates and digestive comfort.

Our extensive research and testing of various energy gels have pointed us towards identifying the best options for triathletes. Each gel’s effectiveness was assessed based on its nutritional profile, taste, texture, and the sustained energy it provides. This guide will share our top recommendations to keep triathletes well-fueled from the first stroke in the water to the final sprint to the finish line.


Best Energy Gels for Triathletes

We’ve carefully selected the finest energy gels designed for triathletes who demand reliable and quick fueling during training and races. These gels are formulated to deliver a sustained energy boost, essential electrolytes, and easily digestible ingredients to optimize performance and endurance.


GU Energy Gels

GU Original Sports Nutrition Energy Gel

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We’ve found these gels to be a dependable boost during triathlons, providing sustained energy without any discomfort.


  • Assorted flavors cater to different preferences and prevent taste fatigue
  • The caffeine variants can enhance focus and reduce perceived effort
  • Convenient packaging makes them easy to carry and consume during a race


  • Some flavors may be too sweet for certain palates
  • The gel texture could be difficult to ingest for those who prefer a more liquid consistency
  • Caffeine sensitive individuals might be limited in flavor choices

Having used the GU Energy Gels during various endurance challenges, we’ve seen firsthand how they can fit into an athlete’s nutrition strategy. Their compact size makes them incredibly portable, a crucial factor when you’re trying to minimize gear. While training for triathlons, it’s been helpful to have a range of flavors to choose from; this prevents taste fatigue when consuming multiple packs.

The consistency is thick, which helps to prevent mess and ensures that the consumption process is as smooth as possible even when your heart rate is high. In addition, the caffeinated options give a noticeable uplift, which can be just what you need to push through a rough patch.

However, we do notice that tastes are personal, and some of the flavors might come across as overly sweet. On hot days, chilled gels can be more palatable, so it’s worth planning ahead. The gel texture is a double-edged sword; it’s easy to carry but can be a challenge to swallow, especially when your mouth is dry. It’s also advisable to check your tolerance for caffeine before the race day – it can be a great ally but also a foe if your stomach disagrees.

Overall, these gels are a solid choice for triathletes seeking quick, efficient energy. They’ve been a vital part of our regimen, and we think they could be an excellent addition to yours too.


Hüma Chia Energy Gels

Hüma Chia Energy Gel

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We think these Hüma Chia Energy Gels are a must-have for any triathlete looking for a natural, stomach-friendly boost.


  • Made with all-natural ingredients that are easy on the stomach
  • Pleasant taste profile compared to other gels on the market
  • Contains chia seeds for sustained energy release


  • Slightly more expensive than some alternative energy gels
  • The texture may be too gritty for some preferences
  • Limited caffeine options for those who prefer an extra kick

Triathlons demand not only intense physical prowess but also smart energy management. We found the Hüma Chia Energy Gels extremely effective during our long bikes and runs. It’s like swallowing a burst of energy, with the natural ingredients providing a substantive feeling that’s both satisfying and energizing. The variety pack offers multiple flavors, which is great for preventing flavor fatigue – a real struggle during longer races.

It’s clear these gels aren’t just about the energy; they’re about ensuring we can push further without the gastrointestinal distress that often comes with other gel products. During a recent century ride, our team relied on these gels, and not once did we experience any stomach issues. They were quick to consume and provided a noticeable lift during those tough uphill grinds.

Financially, they are an investment, but in our opinion, they’re worth the cost for the quality you receive. Some of us did note the gritty texture due to the chia, but it’s a small trade-off for the natural ingredient list and the effective energy supply. And while we appreciate the option without caffeine, a few of us missed having a wider range of caffeinated choices. All told, we believe these Hüma Chia Energy Gels hit the mark on what they promise – real food ingredients for sustained energy without the crash.


GU Tri-Berry Energy Gel

GU Tri-Berry Energy Gel

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We find these energy gels perfect for sustained activity, delivering a quick energy boost with palatable flavors.


  • Effortless to carry and consume during intense workouts or races
  • Quick absorption providing a fast energy rise
  • Flavors with caffeine options for added focus


  • Potential stomach discomfort if not followed with water
  • Texture may be too thick for some preferences
  • Specific flavors might not appeal to every palate

After taking the GU Tri-Berry Energy Gel prior to our long-distance cycle, the convenient packs were easy to slip into our pockets. They were just as easy to open and consume even while pedaling hard, which is essential during a triathlon when every second counts.

The dual-source energy, with maltodextrin and fructose, gave us the quick, sustained energy needed without causing any spikes or crashes, keeping our performance consistent over several miles. The branched-chain amino acids in the formulation also seemed to help since we noticed less fatigue and muscle soreness post-race.

Having tried several types during our training, we’ve come to enjoy the Tri-Berry flavor, although initially, it took a moment to get used to the taste. We make sure to pair the gels with water, however, as they can be a bit thick and might cause discomfort if not adequately hydrated. Despite this, they’ve become an integral part of our endurance events, providing the necessary fuel when we most need it.


SIS Isotonic Energy Gels

SIS Isotonic Energy Gels

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We think these gels are a solid choice for endurance athletes who need quick, convenient energy without digestive issues.


  • Quick energy release without the need for additional water
  • Easy to consume with a non-sticky texture
  • Free from banned substances, trustworthy for competitive use


  • Some may find the consistency too thin
  • Taste may not appeal to everyone
  • Price can fluctuate, affecting value

When we’re in the heat of a triathlon, the last thing we want is to fumble with complicated nutrition. SIS Isotonic Energy Gels impressed us with their quick-absorbing carbohydrates that kept our energy levels steady throughout rigorous activities. Each gel delivered the promised boost without the hassle of needing extra water, eliminating any worries about digestive distress that can plague us during long-distance events.

Flavor can make or break an energy gel, and Science in Sport seems to have hit the right note for us. The tropical taste was refreshing and the consistency was like a drink rather than a thick paste. It was a welcomed change from the usual gooey gels that can be tough to swallow when you’re gasping for air after a grueling leg.

We appreciate when a product delivers on safety and quality. Knowing that these gels are vetted for banned substances gives us peace of mind that we’re not jeopardizing our health or breaking any rules. However, the thin texture that makes it easy to down on the go may not be to everyone’s liking. Plus, with the price subject to change, budget-conscious athletes might want to keep an eye on the cost to ensure they’re getting a good deal. Despite these minor quibbles, the SIS Isotonic Energy Gels have become a staple in our triathlon nutrition kit.


GU Liquid Energy

GU Liquid Energy Gel

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We think the GU Liquid Energy Gel could be a solid choice for triathletes who value quick energy absorption and a smooth texture.


  • Easy to swallow due to liquid form, making for speedy nutrient uptake
  • Variety of flavors prevents taste fatigue during long activities
  • Contains BCAAs, aiding in muscle recovery and reducing mental fatigue


  • Some flavors may taste odd, particularly when consumed warm
  • Packaging might be bulky for those who prefer to carry less
  • Stickiness can be a nuisance if it spills during consumption

Having just tucked a few of these GU Liquid Energy gels into our race belts, we appreciated the smooth consistency that made them quick to consume on a fast-paced bike leg. In contrast to traditional gels, these didn’t require chasing with water, a definite plus when we’re aiming for a personal best.

The assorted flavors in the mixed pack were a refreshing change from the monotone taste that can accompany single-flavor packs. The variety helped us avoid flavor fatigue, which is especially helpful in longer races like Ironman events where maintaining both energy and morale is crucial.

Our team noticed that when it came to the supplied energy, these gels hit the mark. They offered a reliable boost, courtesy of their dual carbohydrate sources. The added electrolytes, without a doubt, contributed to sustaining our performance. However, we did find the bulkier packaging to be a minor hindrance when optimizing our race kit for aerodynamics and convenience.

Overall, the GU Liquid Energy Gel packs deliver on their promise of fast, portable energy with the added benefits of muscle-supporting BCAAs. Although there are slight downsides regarding taste preferences and packaging, these can be considered minor when weighed against the benefits delivered mid-race.


SIS GO Lemon & Lime Energy Gel

SiS GO Isotonic Energy Gel

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For triathletes seeking a quick energy boost without digestive discomfort, SIS GO Lemon & Lime Energy Gels offer a palatable and convenient solution.


  • Quick energy release suitable for high-endurance sports
  • No need to drink water alongside, thanks to isotonic formula
  • Low sugar content minimizes energy crashes


  • Taste may not appeal to everyone
  • Texture might differ from traditional gels and may be too thin for some preferences
  • Limited to six servings per package, may require purchasing multiple for longer events

During our latest triathlon, we decided to give SIS GO Energy Gels a test run. Pulling one from our jersey pocket, we appreciated the light and workable consistency. It made consumption on the move seamless, integrating perfectly into our stride with no pause for water to wash it down.

We noticed a steady stream of energy without any gastrointestinal issues often associated with thicker, more concentrated gels. It’s reassuring to tap into a product that is as focused on performance as we are—long-lasting fuel without the fears of a sugar crash.

Despite our generally positive experience, we’re aware that not everyone may enjoy the lemon and lime zest. It’s a certain flavor that one has to fancy, especially when under physical stress. However, for us, it provided a pleasant change from the overly sweet variants we’ve tried in the past.

The isotonic nature of SIS GO gels strikes a fine balance, favoring quick absorption and delivering that sought-after energy boost when our tank starts to run low. With a range of flavors available and informed-sport certification, we’re confident in our choice. For those planning longer sessions or back-to-back training days, it’s a good idea to stock up, as each pack contains six servings.


SIS Energy Gel Pack

SIS Energy Gel

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We found these gels to be a great companion for endurance activities, delivering fast-acting energy that’s easy to consume on the move.


  • Quick energy release without the need for additional water
  • Electrolyte replenishment to combat fatigue
  • Light and drinkable texture with a palatable taste


  • Higher salt taste may not appeal to everyone
  • Some may find the salted strawberry flavor unusual
  • Box and packs missing an expiry date pose a concern for freshness

When you’re deep into a triathlon, energy management is critical, and that’s where the SIS Energy Gel Pack comes in handy. During our recent trial, we appreciated how the isotonic formula rapidly supplied the boost we needed without the burden of extra water, which often leads to gastrointestinal distress during high-intensity exertion. The fact that these gels also replenish lost electrolytes integral to optimum performance is a boon for us endurance athletes.

The taste of salted strawberry is distinctive and may not be to everyone’s liking, but we found the unique flavor to be a refreshing change from overly sweet options; it’s also less likely to cause palate fatigue during long events. In terms of consistency, these gels set themselves apart from the sticky, syrup-like textures of many competitors. They’re more fluid, making them easier to consume while on the run or bike, allowing us to focus on our stride and cadence without interruption.

Although we enjoy the flavor and functionality, there is room for improvement. Some of our team were put off by the stronger salt presence, and the lack of an expiry date can arouse some concern about the product’s shelf life. However, these are minor issues when weighed against the overall effectiveness and convenience of the gels. Whether it’s a long training session or race day, the SIS Energy Gel Pack is a smart choice for sustained energy supply.


SIS Energy Gel Pack

Science in Sport Energy Gel

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We can confidently say that this gel is a must-try for its ease of use and digestion, especially during prolonged triathlon events.


  • Easy to consume without extra water
  • Quick and sustained energy supply
  • Light and non-sticky consistency


  • Limited flavor options may not suit everyone
  • May be too sweet for some tastes
  • The price point might be a factor for budget-conscious athletes

During our last triathlon, we reached for the SIS Energy Gel Pack. The isotonic formula meant we could take it without pausing for water, which kept our momentum going strong. The 22 grams of carbohydrate per gel seemed just right to avoid the dreaded mid-race energy dip.

We noticed the light and non-sticky consistency was a pleasant surprise compared to other gels. It was like a refreshing treat that didn’t interfere with our breathing or our stride. The tutti frutti flavor added a tangy zing that was enjoyable even when the fatigue started to set in.

However, while the taste was agreeable to us, we could see how it might not be everyone’s preferred choice. There’s always a bit of a personal preference with flavors, and the options here might not cover all the taste buds out there. In terms of cost, we believe the investment is justified for the quality and convenience though it may stretch some budgets.


Buying Guide

When selecting the best energy gels for triathlon, we consider the key aspects that can enhance endurance and overall performance. Our choices focus on ingredients, taste, consistency, and nutrient timing.



We look for gels with simple and complex carbohydrates for immediate and sustained energy. Amino acids are also crucial as they may aid in reducing fatigue. It’s important to check for any allergens or dietary restrictions, such as gluten or vegan preferences.

  • Carbohydrates:
    • Simple (fast energy)
    • Complex (sustained energy)
  • Amino Acids: May reduce fatigue
  • Allergens: Gluten, nut, etc.
  • Dietary preferences: Vegan, organic, etc.


Taste and Consistency

The flavor and texture of the gel should be palatable to avoid any gastrointestinal discomfort. We prefer gels that are neither too thick nor too runny, making them easy to consume during the race.

  • Flavor: Personal preference
  • Texture: Balancing thickness


Nutrient Timing

Energy gels should offer a balance between quick-release and longer-lasting energy to support the different stages of a triathlon. We consider gels with added electrolytes to replenish what’s lost in sweat.

  • Electrolytes: Sodium, potassium, etc.
  • Caffeine: Optional for an extra boost (personal tolerance)


Absorption Rate

It’s beneficial to have gels that are easily digestible to avoid any digestive issues. We recommend testing gels during training to gauge the body’s reaction.

  • Digestibility: Avoid stomach upset
  • Personal Testing: Try in training

Through careful consideration of these factors, we can make well-informed decisions and choose the most suitable energy gels to help us achieve our triathlon goals.

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