Skip to content

What Are the Best Energy Gels for Runners? A Comprehensive Guide

4 min read

Glycogen stores in your muscles can be depleted after as little as 90 minutes of moderate to high-intensity exercise, a phenomenon known as 'hitting the wall'. To prevent this, endurance runners turn to energy gels—a highly concentrated source of carbohydrates designed for rapid absorption and a quick energy boost.

Quick Summary

Compare isotonic, hydrogel, and natural energy gels for endurance running. Evaluate brands like Maurten, SiS, and GU based on consistency, carbohydrate type, and additional features like caffeine and electrolytes. Find the ideal gel for sensitive stomachs and race-day performance.

Key Points

  • Practice is Essential: Always test energy gels during training, not on race day, to find what works best for your body and stomach.

  • Match Gel Type to Need: Choose isotonic gels for convenience and sensitive stomachs, hydrogels for high absorption with minimal GI risk, or natural gels for clean, real-food ingredients.

  • Timing Your Intake: Start fueling around 60-90 minutes into a long run, then take a gel every 30-45 minutes to maintain energy levels and prevent bonking.

  • Hydration is Critical: Remember to consume gels with water to aid digestion, especially for thicker, traditional formulas.

  • Check for Extras: Consider gels with added caffeine for a late-race boost or extra electrolytes for long, hot runs where sweat loss is high.

  • Ingredient Awareness: Be mindful of carbohydrate ratios (e.g., 2:1 glucose-fructose) and ingredient sources to optimize performance and gut comfort.

In This Article

Understanding Energy Gels: Fueling Your Performance

Energy gels are a crucial component of endurance nutrition, providing a fast and convenient way to replenish depleted carbohydrate stores during prolonged exercise. They typically contain a mix of simple sugars like glucose and fructose, and sometimes longer-chain carbohydrates like maltodextrin, to provide both quick and sustained energy. Different formulations exist to suit various needs, from those needing rapid absorption to runners with sensitive stomachs.

Key Considerations When Choosing a Gel

Selecting the right energy gel isn't a one-size-fits-all process. What works for one runner might cause stomach issues for another. Key factors include:

  • Carbohydrate Ratio: A 2:1 ratio of glucose to fructose is often recommended, as these use different transport pathways in the body, allowing for greater absorption and minimizing gut distress.
  • Ingredient Source: Gels can be either synthetic (maltodextrin-based) or natural (from real foods like maple syrup, honey, or fruit purée). Natural gels can be easier on sensitive stomachs, while synthetic gels are engineered for specific performance benefits.
  • Consistency: Gels vary widely in texture. Some are thick and syrupy, requiring water to wash them down, while isotonic or hydrogel formulas are more watery or jelly-like, making them easier to consume without extra fluids.
  • Additional Components: Many gels include electrolytes (sodium, potassium) to aid hydration, caffeine for a mental boost, or amino acids to reduce muscle damage.

Top Energy Gels for Runners: A Detailed Breakdown

Here is a closer look at some of the most popular and effective energy gels on the market:

Maurten Gel 100

Praised by elites like Eliud Kipchoge, Maurten's hydrogel technology encapsulates carbohydrates, allowing for higher intake with reduced risk of GI distress. The texture is more like a firm jelly, and the flavor is neutral, which helps with flavor fatigue during long events. It's an excellent choice for runners with sensitive stomachs.

SiS GO Isotonic Energy Gel

As the world's first isotonic energy gel, SiS GO is thinner and water-based, meaning it doesn't require additional water for digestion. This makes it incredibly convenient and easy on the stomach. It's a race-day favorite for many, offering a quick carb hit without the hassle.

GU Roctane Energy Gels

GU is a classic in sports nutrition, and their Roctane line is designed for high-intensity, long-duration exercise. It contains more sodium and branched-chain amino acids (BCAAs) compared to standard GU gels, making it ideal for endurance events and heavy sweaters. The consistency is thicker and requires water.

Huma Chia Energy Gels

Made from real food ingredients like fruit purée and chia seeds, Huma gels are a natural alternative that many runners find gentler on the digestive system. They offer a 2:1 glucose-to-fructose ratio and come in a variety of pleasant flavors, often with good electrolyte content.

Precision Fuel & Hydration PF 30 Gel

This gel is known for its high energy-to-weight ratio and a smooth, easy-to-swallow consistency. It features a 2:1 glucose-to-fructose blend and a very mild, neutral flavor that prevents flavor fatigue over long distances. It's a great all-around performance gel.

Untapped Athletic Fuel Maple Syrup Gels

Untapped offers a single-ingredient, all-natural fuel source: pure maple syrup. Maple syrup has a low glycemic index, providing a more steady energy release than high-sugar options. The consistency is liquidy and the natural sweetness is appealing to many.

Comparison Table of Popular Energy Gels

Brand Type Carbs (g) Key Feature Best For
Maurten Gel 100 Hydrogel 25 Encapsulated carbs for fast absorption, minimal GI distress Sensitive stomachs, elite performance
SiS GO Isotonic Isotonic 22 No water needed for digestion, thin consistency Convenience, race day, sensitive stomachs
GU Roctane Classic 22-25 Higher sodium, BCAAs for long distances Long runs, heavy sweaters
Huma Chia Natural 21 Real food ingredients, chia seeds for sustained energy Natural preference, sensitive stomachs
Precision PF 30 Classic 30 High energy density, mild flavor, smooth consistency Endurance, avoiding flavor fatigue
Untapped Maple Natural ~24 100% pure maple syrup, steady energy release Natural fuel, sensitive to high sugars

How to Strategize Your Energy Gel Intake

Practicing your fueling strategy during training is critical to avoid race-day mishaps. Here's a general approach:

  1. Before You Run: If running long or fasting, consider taking a gel 10-15 minutes before starting.
  2. During the Run: For activities over 60 minutes, start taking gels around 60-90 minutes in.
  3. Regular Intervals: Aim for one gel every 30-45 minutes thereafter to maintain steady energy levels. Elite runners may consume more, but this requires gut training.
  4. Hydration is Key: Unless using an isotonic gel, always consume your gel with water. This aids in digestion and absorption and prevents stomach upset.
  5. Don't Overdo It: Taking too many gels at once can cause a sugar crash and GI issues. Stick to the recommended intervals.

For more in-depth nutritional advice tailored for runners, resources like Runners Need offer excellent guidance.

Conclusion

Choosing the best energy gel for runners is a highly personal decision. The ideal choice depends on your body's tolerance for ingredients and textures, your race distance, and your desired energy profile. By understanding the different types of gels—from the innovative hydrogel technology of Maurten to the natural, real-food ingredients of Huma—you can select the best option to support your training and smash your race-day goals. Always test your nutrition strategy during training to ensure it works for you before race day.

Frequently Asked Questions

For a marathon, most runners need between 4 and 8 gels, aiming for approximately 60-90 grams of carbohydrates per hour. This typically means taking a gel every 30-45 minutes, but you should practice this in training to see what your body can tolerate.

For runs over an hour, take your first gel around 60-90 minutes into your exercise to top off your glycogen stores before they are significantly depleted. Some athletes also take a gel 10-15 minutes before a run for an initial boost.

Yes, with traditional, concentrated gels, you should drink water to help with absorption and prevent stomach upset. Isotonic gels, however, are formulated with enough water that they can be consumed without extra fluid.

Isotonic gels have a thinner, more watery consistency and are formulated to be absorbed without extra water. Traditional gels are thicker and more concentrated, requiring water for proper digestion and absorption.

Gels made with natural ingredients like honey or maple syrup (Huma, Untapped) or those with advanced technology like Maurten's hydrogel or SiS's isotonic formula are often gentler on sensitive stomachs.

Caffeinated gels can improve mental alertness and endurance performance during the later stages of a long race. However, you should always test them in training to gauge your body's tolerance, as caffeine affects everyone differently.

Energy gels typically start working within 5 to 15 minutes, as the simple carbohydrates are rapidly absorbed into the bloodstream. Absorption rate can vary by gel type and the individual runner.

References

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5

Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.