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Energy gel
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Energy gels

Energy gels are edible carbohydrate gels that provide energy for exercise and promote recovery,[1] commonly used in endurance events such as running, cycling, and triathlons. Energy gels are also referred to as endurance gels, sports gels, nutritional gels, and carbohydrate gels.[1]

Energy gels are packaged in small, single-serve plastic packets. Each packet has a strip with a small notch at the top that can be peeled off to reveal an opening through which the gel can be consumed. One-handed operation is often adopted by users to facilitate continuous exercise performance.

Packaging and ingredients

[edit]

The size content of energy gels is commonly 1.2 oz (32g), with a range from 1 oz to 1.5 oz packets. The portable packaging is designed to facilitate uninterrupted training or performance conditions.[2] Common ingredients include water, maltodextrin, fructose, and various micronutrients, preservatives, and flavor compounds or caffeine.[2]

History

[edit]

Sports energy gels emerged in the United Kingdom in 1986 as a "convenient, prewrapped, portable" way to deliver carbohydrates during endurance events.[3] Gels have a gooey texture and are sometimes referred to as "goo" generically.[4][5] The gel Leppin Squeezy was distributed at the Hawaii Ironman Triathlon in 1988. Once considered a "cult product in clear packaging", energy gel products are now marketed in fancy packaging[6] and come in a variety of flavors.[3] The energy gel market grew during the 1990s, as professional athletes began endorsing products. Manufacturers generally encourage the consumption of multiple packets, with water, when participating in endurance events.[3]

Use

[edit]

Energy gels are promoted to individuals seeking a boost from caffeine and carbohydrates during exercise performance.[7][8] The recommended use of an energy gel is 15 minutes before starting and 30–45 minutes after starting the endurance exercise.[1]

Taste

[edit]

Energy gels have varied taste by addition of flavor ingredients added during manufacturing, such as menthol and chai latte.[9][10]

See also

[edit]

References

[edit]
Revisions and contributorsEdit on WikipediaRead on Wikipedia

Energy gel

View on Grokipedia
from Grokipedia
An energy gel is a portable, semi-liquid designed to provide endurance athletes with a rapid and concentrated source of carbohydrates during prolonged exercise, helping to sustain blood glucose levels and delay fatigue. These gels emerged in the late in as a convenient alternative to traditional solid foods for fueling during events like marathons and races, with the first commercial product, the Leppin Squeezy gel, launched in 1987 by South African sports scientist . Typically packaged in single-serve sachets, energy gels contain 20–40 grams of fast-absorbing carbohydrates per serving, primarily in the form of simple sugars like glucose, , or , which are quickly converted into for working muscles. Many formulations also include electrolytes such as sodium and to support hydration and prevent cramps, while some incorporate (around 0.03 grams per gel) to enhance alertness and performance. Scientific studies have demonstrated their effectiveness; for instance, a strategy involving 60 grams of glucose from energy gels per hour during a marathon improved finishing times by approximately 5% compared to ad-libitum intake in non-elite runners. Energy gels are most commonly used in endurance sports exceeding , such as running, , and triathlons, where they are consumed every 30–45 minutes alongside to optimize absorption and avoid gastrointestinal issues. By acting as an exogenous energy substrate, they help spare limited muscle stores, thereby extending time to exhaustion and supporting higher-intensity efforts in the later stages of competition. While generally well-tolerated, athletes are advised to test gels in training to assess individual responses, as overuse can lead to digestive discomfort.

Definition and Purpose

What is an Energy Gel?

An energy gel is an edible, semi-liquid supplement designed for rapid absorption during , providing athletes with a concentrated source of to maintain . These gels are particularly suited for efforts where quick energy replenishment is essential without interrupting the flow of exercise. Energy gels feature a thick, syrup-like consistency that allows for easy squeezing and consumption on the go, typically packaged in single-use sachets weighing 25-40 grams per serving. Each serving generally delivers 80-150 calories, with the majority derived from carbohydrates for efficient energy provision. Unlike , which promote greater through solid textures and additional fibers or proteins, or sports drinks, which combine carbohydrates with hydration, energy gels prioritize extreme portability and minimal time to enable faster uptake during intense activity. By offering readily absorbable carbohydrates, they help delay depletion in muscles and the liver.

Role in Endurance Sports

Energy gels serve a critical role in endurance sports by supplying exogenous carbohydrates to sustain glucose levels and postpone the onset of during prolonged physical . In events such as marathons, long-distance , and triathlons, where activities typically exceed 60-90 minutes, athletes deplete endogenous stores, leading to reduced performance if not replenished. Gels deliver 30-60 grams of carbohydrates per hour, aligning with established recommendations for moderate-duration endurance efforts (1-3 hours), thereby supporting sustained energy oxidation without excessive gastrointestinal strain. The mechanism of energy gels involves the rapid absorption of simple sugars, primarily and , which elevate blood glucose concentrations and provide immediate fuel to working muscles, sparing limited reserves. This process helps prevent "bonking," a state of severe characterized by glycogen depletion and central nervous system impairment, commonly experienced in endurance competitions. Studies demonstrate that supplementation via gels maintains euglycemia and enhances performance in time trials and running events by delaying neuromuscular . Targeted for athletes in demanding continuous high-intensity effort, energy gels facilitate intake rates of up to 60 grams per hour with minimal digestive burden, as evidenced by low incidence of gastrointestinal symptoms during intense running protocols. Research confirms their efficacy in real-world applications, such as segments and marathon distances, where gels outperform in preserving glucose and extending time to exhaustion. Overall, this targeted strategy optimizes fuel availability, enabling athletes to maintain pace and intensity over extended durations.

Composition

Carbohydrate Sources

Energy gels rely on carbohydrates as their primary energy source, delivering rapid and sustained for activities through carefully selected types that optimize absorption and utilization. The most common carbohydrates incorporated are , , and , each contributing unique properties to the gel's formulation. , a derived from the partial enzymatic or acid of starches, acts as a complex that provides a sustained release of by breaking down into glucose units during . This structure, typically comprising chains of 3 to 17 glucose molecules, allows for steady blood glucose maintenance without sharp spikes, making it ideal for prolonged exercise. is sourced primarily from corn, rice, potato, or wheat starches and undergoes to achieve high water solubility and rapid digestibility, facilitating quick mixing into the gel matrix. Glucose, a , offers immediate by being directly absorbed into the bloodstream via the sodium-dependent 1 (SGLT1) in the , providing fast replenishment of stores and supporting high-intensity efforts. In contrast, fructose, another , is absorbed through the fructose-specific transporter, which operates independently of SGLT1, enabling non-competitive co-ingestion with glucose to enhance overall uptake. This dual-transporter mechanism allows athletes to exceed the absorption limit of glucose alone (approximately 60 grams per hour) by combining the two sugars. A prevalent in gels is a 2:1 glucose-to-fructose ratio (or equivalent with as the glucose polymer), which maximizes exogenous oxidation and supports intakes of up to 90 grams per hour while minimizing gastrointestinal distress, as evidenced by improved performance in and running studies. These s yield approximately 4 kilocalories per gram, serving as the body's preferred substrate during exercise. Typical energy gel servings contain 20 to 40 grams of s, delivering 80 to 160 kilocalories primarily from this source to sustain effort without excessive volume. In production, the carbohydrates are often derived from corn or for maltodextrin and glucose, while may come from or fruit concentrates; processes ensure the ingredients dissolve quickly in the gel's aqueous base, promoting ease of consumption and absorption during activity.

Supplementary Components

Energy gels often incorporate supplementary components beyond to enhance their functionality during activities, primarily addressing hydration, muscle protection, and cognitive performance. These additives are designed to support athletes without significantly impacting the primary carbohydrate delivery mechanism. Electrolytes such as sodium, , and magnesium are commonly added to mitigate and maintain balance lost through sweat during prolonged exercise. Sodium content typically ranges from 50 to 200 mg per gel serving, helping to improve fluid retention and prevent in hot or intense conditions. and magnesium, present in smaller amounts, contribute to muscle function and signaling, supporting overall hydration when integrated with fluid intake. Amino acids, particularly branched-chain amino acids (BCAAs) like , , and , are included in some formulations to reduce muscle breakdown and alleviate central fatigue during extended efforts. These compounds, often at doses up to 1-2 g per serving, provide an alternative energy source and promote recovery by minimizing , with evidence indicating safety at up to 20 g daily for short-term use. Caffeine is another frequent additive, typically at 20-50 mg per gel, to boost mental alertness and delay perceived exertion without gastrointestinal distress. This dose aligns with effective ergogenic levels of 2-6 mg/kg body weight, enhancing endurance by stimulating the and improving fat oxidation. Variations may include to aid and energy production, as well as preservatives like to extend while ensuring product stability. All ingredients in energy gels must comply with anti-doping regulations, such as those set by the (WADA), requiring certification programs like Informed Sport to verify absence of prohibited substances.

Homemade Energy Gels

Homemade energy gels can be prepared as a simpler, non-hydrogel alternative using basic ingredients to replicate the carbohydrate and electrolyte profile of commercial products. A basic method involves the following steps: 1. Heat water and dissolve sugars, such as maltodextrin or fructose, along with salt for electrolytes. 2. Add a thickener, if desired (e.g., additional maltodextrin or pectin), and stir until the mixture reaches a syrupy consistency. 3. Allow the mixture to cool and portion it into reusable pouches or flasks. This is a basic method, and athletes should adjust ratios based on individual needs, such as flavor or thickness, and test the gel during training to ensure tolerance and effectiveness.

Packaging and Consumption

Packaging Features

Energy gels are typically packaged in single-serve sachets made from foil or laminates, with volumes ranging from 32 to 60 ml to deliver 20-30 grams of carbohydrates per unit. These sachets feature tear-open tops for rapid access during , ensuring athletes can consume the gel without interrupting their pace. The design prioritizes portability, with each packet weighing under 50 grams, allowing runners or cyclists to carry multiple units in jersey pockets or hydration vests without added bulk. Innovations in packaging enhance usability during motion, including ergonomic shapes that facilitate one-handed gripping and squeezing to dispense the viscous gel efficiently. Some brands incorporate pressure-tested seals to prevent leaks and no-spill spouts or valves, reducing mess in dynamic environments like trail running or cycling. Additionally, resealable options in larger pouches, such as those holding 90-300 grams of gel, offer flexibility for extended sessions while maintaining compactness. Unopened energy gel packets generally have a of 1-2 years when stored in cool, dry conditions, preserving the gel's nutritional integrity and texture. Their lightweight construction supports easy storage and transport, with athletes often stowing several in gear for long-distance events. Recent developments emphasize , with a shift toward recyclable materials through programs like and emerging biodegradable or compostable options to minimize environmental impact from disposable packaging.

Ingestion Guidelines

Energy gels are consumed by tearing open the and squeezing the contents directly into the , allowing for rapid intake without requiring utensils or additional preparation. This method is designed for on-the-go use during endurance activities, where athletes can administer a full serving from a single packet to maintain portion control and avoid overconsumption. To aid swallowing and promote better absorption, the gel should be followed immediately by 4-8 ounces (120-240 ) of water for traditional gels, as the concentrated carbohydrates can otherwise lead to gastrointestinal discomfort if not diluted; isotonic gels may be consumed without additional fluid. Athletes are advised to practice this consumption technique during training runs to familiarize themselves with the process, reduce potential mess from sticky residue, and ensure seamless integration into their routine without disrupting pace. For safety, gels should be ingested while upright or in motion to minimize hazards, particularly during high-intensity efforts. Their compact, flexible packaging makes them highly compatible with hands-free storage solutions like race belts, jersey pockets, or hydration vests, facilitating quick access without stopping.

Historical Development

Origins and Invention

The development of energy gels emerged in the early , amid the rising popularity of endurance sports like marathons, which saw participation increase by 255% from onward as recreational running boomed globally. This surge in long-distance events underscored the limitations of existing fueling options, prompting innovations to support sustained performance. The primary motivation for inventing energy gels was to provide a portable, easily consumable alternative to bulky carbohydrate sources such as bananas or , which were impractical to carry and eat during races without interrupting rhythm or causing digestive issues. athletes, including marathoners, faced "bonking"—a sudden depletion of stores leading to —highlighting the need for a compact form that bridged the gap between solid foods (hard to mid-effort) and drinks (prone to ). A pivotal milestone occurred in 1987 when South African sports scientist Professor , a marathoner and researcher at the , co-developed the world's first commercial energy gel, known as Leppin Squeezy, with his team. The gel utilized as its key carbohydrate source, enabling a lightweight, squeezable design for enhanced portability during exercise. Each 25-gram serving delivered sufficient carbohydrates to sustain an athlete's energy needs for up to one hour, revolutionizing on-the-go fueling. Early prototypes of the Squeezy gel were rigorously tested in laboratory settings and practical scenarios, such as sessions and small-scale events, with emphasis on gastrointestinal absorption rates to ensure rapid uptake without discomfort. These tests confirmed the gel's efficacy in delivering energy efficiently, laying the groundwork for its adoption in competitive sports.

Commercial Evolution

The commercialization of energy gels began in the early 1990s, with GU Energy Labs emerging as the pioneering force in the United States. Founded in 1994 by biophysicist Dr. Bill Vaughan, the company became the first major producer and distributor of energy gels, initially developing the product in Vaughan's Berkeley kitchen to support his daughter's training. By 1996, GU was supplying gels to major events like the , marking an early step in event sponsorship that helped popularize the product among marathon and endurance runners. This strategic involvement in high-profile races, including ongoing partnerships with marathons such as the Austin Marathon and Half Marathon, accelerated adoption by providing athletes with convenient, on-course access to the gels. Expansion into international markets followed in the mid-1990s, with seeing its first significant entry through SQUEEZY, a German brand that launched the product on the continent in 1993 after importing the concept from . During the and , the industry diversified rapidly, introducing a wider range of flavors—such as and chocolate variants—to improve and consumer appeal, alongside additives like electrolytes and to enhance functionality. This period saw brands like GU expand to over two dozen flavors by the late , responding to athlete feedback and broadening the product's accessibility beyond elite competitors. By 2025, the global energy gel market had grown to an estimated value of USD 966.23 million, surpassing earlier projections and driven by the surge in ultra-endurance events like ultramarathons and triathlons, as well as the rise of platforms that facilitated sales. Key innovations during this era included the introduction of caffeine-infused variants in the early , which provided an additional performance boost through combined and delivery, as seen in formulations from brands like PowerBar. Post-2010, sustainability became a focal point, with initiatives such as GU Energy Labs' 2015 partnership with to recycle over 3 million packaging units by 2023, and the adoption of recyclable materials by companies like Science in Sport, addressing environmental concerns over single-use plastics in .

Usage and Application

Timing and Dosage

For endurance events lasting more than 60 minutes, athletes are advised to consume one energy gel every 30-45 minutes to deliver 30-60 grams of carbohydrates per hour, helping maintain glucose levels and delay fatigue. This frequency aligns with the typical 25-30 grams of carbohydrates per gel serving, ensuring steady energy availability without overwhelming digestion. The initial gel intake should occur 45-60 minutes into the activity to replenish stores proactively before significant depletion occurs. Delaying beyond this point may lead to reduced performance, as early fueling supports sustained oxidation of exogenous . Dosage can be adjusted based on and duration; for high-intensity efforts, up to 90 grams of per hour is feasible using gels with mixed sources like glucose and to enhance intestinal absorption and carbohydrate utilization. In contrast, shorter sessions under 60 minutes typically require no supplemental intake, to match reduced demands. Personalization is essential, with recommendations scaled to body weight at approximately 0.7 grams of carbohydrates per per hour for moderate efforts, increasing toward 1 gram per for optimized performance in trained individuals. Athletes should conduct tolerance testing during training to determine individual gastrointestinal limits and refine intake without causing discomfort. Energy gels are most effective when paired with fluids to aid swallowing and absorption.

Integration with Hydration

Energy gels are hypertonic solutions with high osmolality, typically ranging from 300 to over 10,000 mmol/kg, which exceeds that of body fluids and can hinder rapid absorption if not properly managed. To facilitate intestinal uptake, athletes must consume each with 100-200 ml of , diluting the concentrated carbohydrates to promote efficient digestion and prevent . Without accompanying fluids, the high solute concentration draws water into the , potentially leading to cramps or due to slowed gastric emptying and osmotic imbalances. Effective strategies include sipping from a hydration pack or handheld bottle immediately after ingesting the to ensure timely dilution. Additionally, avoid pairing gels with carbohydrate-containing sports drinks, as this can exacerbate hypertonicity and overload the digestive system with excess solutes. For optimal , athletes should pre-hydrate adequately before activity and monitor color—aiming for pale yellow—as an indicator of hydration status throughout the session. Some gels incorporate electrolytes to further aid hydration maintenance when combined with .

Varieties

Flavor Options

gels offer a range of flavor options to enhance sensory appeal and facilitate consumption during activities. Predominant choices are fruit-based varieties, including , (such as orange and lemonade), and apple, which effectively mask the intense sweetness derived from the gels' high content. These profiles dominate due to their refreshing qualities and broad acceptability among athletes. Savory alternatives, exemplified by salted caramel, introduce variety by balancing sweetness with subtle saltiness, catering to preferences for less overtly sugary tastes. Flavor development in energy gels involves incorporating natural or artificial essences to boost and encourage adherence to fueling protocols over extended periods. This approach mitigates issues like flavor , where repetitive exposure to identical diminishes and compliance, potentially leading to suboptimal during exercise. The inherent stickiness from concentrated carbohydrates poses a taste challenge by creating a cloying , which some formulations address alongside flavor through textural adjustments. Certain brands incorporate cooling agents, such as at concentrations of 0.1-0.5%, to provide a refreshing sensation that counters the gels' and improves overall sensory experience. Athlete surveys reveal a strong inclination toward fruity options over neutral or unflavored variants, with flavors capturing approximately 33.7% of and driving commercial priorities.

Specialized Types

Energy gels are formulated in specialized variants to address specific physiological demands during athletic activities, incorporating additives like stimulants, electrolytes, proteins, or adjusted osmolarities beyond basic provision. These adaptations enhance performance in targeted scenarios, such as prolonged efforts or recovery phases, by optimizing delivery, hydration, or muscle repair. Caffeinated energy gels typically contain 20-75 mg of per serving alongside 20-30 g of carbohydrates, providing an ergogenic boost that improves and alertness, particularly during late-race surges in events like marathons or races. The stimulates the , delaying fatigue and enhancing fat oxidation, with studies showing improved time-trial performance when ingested 30-60 minutes before high-intensity efforts. For instance, a gel delivering 100 mg of with carbohydrates has been linked to better performance over 2,000 meters compared to non-caffeinated options. Athletes sensitive to higher doses may prefer variants in the 25-50 mg range to minimize gastrointestinal discomfort while still achieving cognitive and metabolic benefits. Electrolyte-heavy energy gels emphasize high sodium content, often exceeding 200 mg per serving, to support hydration and prevent hyponatremia in hot environments or sweat-intensive sports like triathlons and ultra-running. These formulations, which may include 200-400 mg of sodium alongside carbohydrates, replace electrolytes lost in sweat, maintaining plasma volume and muscle function during prolonged exercise exceeding 90 minutes. Research indicates that sodium supplementation at 300-600 mg per hour aids endurance by optimizing fluid retention and reducing cramping risk in high-heat conditions. For example, gels with 310 mg of sodium per serving are recommended for athletes with high sweat rates to sustain performance without diluting energy intake. Protein-enriched energy gels incorporate 5-10 g of protein per serving to facilitate muscle repair and replenishment, with recovery-focused variants designed primarily for post-exercise use to distinguish them from intra-workout gels. The addition of or protein promotes anabolic signaling and reduces muscle damage after intense sessions, with studies showing that co-ingesting 10-20 g of protein with carbohydrates post-marathon enhances recovery markers like levels. These gels, often consumed within 30 minutes after activity, support and soreness mitigation in athletes transitioning to , though they provide less immediate energy than pure carb variants. Variants like those with 10 g of hydrolyzed target joint and tissue repair alongside basic refueling. Isotonic and hypotonic energy gels differ in osmolarity to influence absorption rates, with isotonic formulations matching body fluid concentration (around 280-300 mOsm/L) for balanced carbohydrate and water uptake, while hypotonic versions (below 280 mOsm/L) prioritize rapid hydration. Hypotonic gels facilitate faster gastric emptying and intestinal absorption, ideal for quick rehydration during short, high-intensity intervals, as evidenced by studies showing superior fluid flux compared to isotonic drinks in endurance settings. Isotonic gels deliver sustained energy without osmotic delays, supporting prolonged efforts like half-marathons where both fuel and electrolyte balance are critical. Both types enhance overall performance by minimizing dehydration risks, though hypotonic options may cause less gastrointestinal upset in heat-stressed athletes.

Health and Performance Impacts

Physiological Benefits

Energy gels provide a concentrated source of s that help maintain plasma glucose levels during prolonged exercise, thereby supporting energy availability for working muscles and the . This sustained glucose supply is particularly beneficial in activities lasting over 60-90 minutes, where endogenous carbohydrate stores begin to deplete. By elevating blood glucose, energy gels contribute to muscle sparing, reducing the rate at which limited reserves are utilized and delaying the onset of . Research indicates that ingestion, such as from gels, can extend time to exhaustion in efforts by up to 30%, allowing athletes to sustain higher intensities for longer durations. In terms of performance enhancement, studies demonstrate that strategic energy gel consumption improves overall capacity, with examples including approximately 5% faster finishing times in marathons for non-elite runners when using a structured fueling compared to ad libitum intake. This benefit arises from the gels' ability to match exogenous oxidation rates to exercise demands, optimizing fuel utilization without gastrointestinal distress in trained individuals. As a recovery , energy gels facilitate rapid post-exercise replenishment, which accelerates muscle resynthesis—especially when combined with protein sources to enhance insulin response and uptake. Consuming such formulations within the first 30-60 minutes after exercise can increase restoration rates by 20-50% compared to alone, supporting quicker preparation for subsequent bouts. Variants of gels with added offer additional perks by reducing perceived exertion during intense efforts, enabling athletes to maintain effort levels with less subjective . Similarly, -enriched gels help preserve sodium balance, mitigating the risk of in prolonged, sweaty conditions where fluid intake exceeds replacement.

Potential Risks and Side Effects

While energy gels provide a convenient source for athletes, they can lead to gastrointestinal distress, including , , and cramps, particularly when consumed without adequate water or in excess of 90 grams of s per hour. Studies indicate that 30-50% of athletes experience such symptoms during prolonged exercise, with high-osmolarity gels exacerbating issues due to impaired gastric emptying in dehydrated states. Over-reliance on energy gels may contribute to from their high content, which promotes acid production and enamel breakdown, especially in athletes who frequently consume them without measures. Additionally, improper timing of gel intake can result in energy crashes, characterized by sudden fatigue following a rapid blood sugar spike and subsequent drop. Certain energy gels contain potential allergens such as , nuts, or soy, posing risks for individuals with sensitivities or allergies, though many formulations are designed to be free of these. Caffeinated variants may cause jitteriness, increased heart rate, or in non-habituated users due to caffeine sensitivity. To mitigate these risks, athletes should test gels during by starting with half portions to assess personal tolerance and gradually increasing intake. Consulting a sports can help tailor usage to individual needs, and pairing gels with hydration strategies reduces gastrointestinal distress.

References

  1. https://www.runnersworld.com/uk/nutrition/a44714303/how-to-use-energy-gels/
  2. https://www.33fuel.com/blogs/default-blog/news-ordinary-sports-nutrition-is-stuck-in-80s
  3. https://www.scienceinsport.com/sports-nutrition/energy-gels-the-science-explained/
  4. https://pmc.ncbi.nlm.nih.gov/articles/PMC4045035/
  5. https://journals.humankinetics.com/abstract/journals/ijsnem/35/2/article-p162.xml
  6. https://health.clevelandclinic.org/energy-gels-how-they-can-help-you-fuel-a-long-workout
  7. https://www.runnersneed.com/expert-advice/nutrition-and-hydration/energy-gels.html
  8. https://muirenergy.com/blogs/news/energy-gels-complete-guide
  9. https://www.sportsdietitians.com.au/sda-blog/bars-vs-gels-vs-drinks/
  10. https://pmc.ncbi.nlm.nih.gov/articles/PMC10054587/
  11. https://pmc.ncbi.nlm.nih.gov/articles/PMC11117686/
  12. https://pubmed.ncbi.nlm.nih.gov/19910651/
  13. https://pmc.ncbi.nlm.nih.gov/articles/PMC4940893/
  14. https://pmc.ncbi.nlm.nih.gov/articles/PMC6852172/
  15. https://pmc.ncbi.nlm.nih.gov/articles/PMC4008807/
  16. https://www.ncbi.nlm.nih.gov/books/NBK459280/
  17. https://jissn.biomedcentral.com/articles/10.1186/s12970-018-0242-y
  18. https://ods.od.nih.gov/factsheets/ExerciseAndAthleticPerformance-HealthProfessional/
  19. https://pmc.ncbi.nlm.nih.gov/articles/PMC6839090/
  20. https://www.healthline.com/health/fitness/energy-gel
  21. https://www.wada-ama.org/en/prohibited-list
  22. https://trailrunningforlife.com/home-made-running-gel-recipes/
  23. https://www.tracerfitness.com/blog/make-your-own-energy-gels
  24. https://guenergy.com/products/energy-gel
  25. https://www.scienceinsport.com/eu/shop-sis/go-range/go-gels
  26. https://www.precisionhydration.com/performance-advice/nutrition/how-to-choose-energy-format-gels-chews-bars-drinks/
  27. https://bowepack.com/products/custom-shape-energy-gel-packaging
  28. https://gualapack.com/news/energy-gels-in-pouches
  29. https://guenergy.co.nz/pages/gu-energy-gel-faq
  30. https://www.amazon.com/ask/questions/TxVXRQ5BMPSFKI/
  31. https://cordis.europa.eu/project/id/873387
  32. https://carbsfuel.com/blogs/news/sustainability-in-energy-gels
  33. https://guenergy.com/pages/gu-energy-gel-101
  34. https://www.runnersworld.com/training/a67952799/how-to-train-with-gels-in-training-and-racing/
  35. https://sponser.com/en/blogs/sport-ernaehrung-gesundheit/drinking-after-energy-gels
  36. https://www.runandbecome.com/running-product-advice/how-to-use-energy-gels
  37. https://www.bbc.com/future/article/20210929-why-do-people-run-marathons
  38. https://www.runderwear.co.uk/blogs/news/54143235-the-long-history-of-sports-nutrition
  39. https://www.outsideonline.com/food/gel/
  40. https://www.squeezy.de/en/ueber-uns-squeezy-geschichte/
  41. https://runivore.com/the-history-of-energy-gels/
  42. https://www.jandonline.org/article/S2212-2672(15)01802-X/fulltext
  43. https://pmc.ncbi.nlm.nih.gov/articles/PMC2575187/
  44. https://www.gssiweb.org/research/article/dietary-carbohydrate-and-the-endurance-athlete-contemporary-perspectives
  45. https://bjsm.bmj.com/content/45/2/e2.17
  46. https://pubmed.ncbi.nlm.nih.gov/25997181/
  47. https://www.fleetfeet.com/s/springfield/news/nutrition-and-hydration-when-to-take-how-much-what-kind
  48. https://www.cranksports.com/problems/stomach-issues/
  49. https://guenergy.com/blogs/blog/making-sense-of-the-tonics-hypo-hyper-and-iso-tonic-sports-nutrition-explained
  50. https://in.fastandup.com/blogs/vitamins-and-supplements/energy-gels-and-how-to-use-them
  51. https://www.nata.org/sites/default/files/2025-08/hydration-guidelines_handout.pdf
  52. https://www.linkedin.com/pulse/how-innovative-flavors-textures-revolutionizing-sports-nidhi-bhilare-cvtvc
  53. https://veloforte.com/blogs/fuel-better/6-problems-with-traditional-energy-gels-solved
  54. https://journals.humankinetics.com/view/journals/ijsnem/31/1/article-p40.pdf
  55. https://www.futuremarketinsights.com/reports/energy-gel-product-market
  56. https://guenergy.com/blogs/dive-deeper/caffeine-and-endurance-the-truth-about-caffeinated-energy-gels-gu-energy-labs
  57. https://www.frontiersin.org/journals/sports-and-active-living/articles/10.3389/fspor.2022.821750/full
  58. https://jissn.biomedcentral.com/articles/10.1186/s12970-020-00383-4
  59. https://www.researchgate.net/publication/267753917_Caffeinated_Carbohydrate_Gel_Ingestion_Improves_2000_Metre_Rowing_Performance
  60. https://pmc.ncbi.nlm.nih.gov/articles/PMC6520843/
  61. https://thefeed.com/page/top-11-energy-gels-for-endurance-athletes
  62. https://www.amazon.com/Z2-Pitaya-Energy-Gel-Performance/dp/B0DJQ43FGT
  63. https://www.therunnerjournal.org/post/introduction-to-energy-gels
  64. https://highfive.co.uk/blogs/news/the-benefits-of-energy-with-protein
  65. https://www.mdpi.com/2072-6643/10/3/333
  66. https://jissn.biomedcentral.com/articles/10.1186/s12970-017-0177-8
  67. https://pmc.ncbi.nlm.nih.gov/articles/PMC8803723/
  68. https://www.sportsci.org/2010/dlbwgh.htm
  69. https://www.precisionhydration.com/performance-advice/hydration/different-types-of-sports-drink-and-when-to-use-them/
  70. https://veloforte.com/blogs/fuel-better/difference-between-hypotonic-isotonic-and-hypertonic-sports-drinks
  71. https://pubmed.ncbi.nlm.nih.gov/31977833/
  72. https://pmc.ncbi.nlm.nih.gov/articles/PMC6019055/
  73. https://jissn.biomedcentral.com/articles/10.1186/1550-2783-5-17
  74. https://www.sciencedirect.com/science/article/pii/S0002916523066716
  75. https://journals.physiology.org/doi/10.1152/japplphysiol.00860.2016
  76. https://pmc.ncbi.nlm.nih.gov/articles/PMC8001428/
  77. https://pmc.ncbi.nlm.nih.gov/articles/PMC4008808/
  78. https://www.gssiweb.org/sports-science-exchange/article/sse-114-nutritional-recommendations-to-avoid-gastrointestinal-distress-during-exercise
  79. https://www.theguardian.com/society/2019/aug/24/athletes-are-damaging-their-teeth-with-energy-drinks-study-finds
  80. https://www.frontiersin.org/journals/nutrition/articles/10.3389/fnut.2025.1589344/full
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