The Science Behind Energy Chews
Energy chews are a popular form of sports nutrition, providing easily digestible carbohydrates to fuel muscles during prolonged exercise. They typically consist of simple sugars like glucose and fructose, which are absorbed quickly to provide a rapid energy boost. This is crucial during endurance events like marathons, long-distance cycling, or triathlons, where your body's primary energy stores are rapidly used. Chews also often contain electrolytes, such as sodium, to help replace what is lost through sweat and maintain fluid balance.
The advantage of chews over other fuel sources, like gels or bars, is their convenience and portability. They offer a more solid texture, which can combat "flavor fatigue"—the common boredom of gels during long events. However, because they are solid, they require a bit more chewing and should be consumed with water to aid digestion and absorption, preventing potential stomach upset.
Establishing Your Fueling Schedule
Determining the right frequency for consuming energy chews is a personal process that requires practice. It depends on several factors, including the duration and intensity of your activity, your body's tolerance, and the specific carbohydrate content of your chews. A crucial rule of thumb is to start fueling early and consistently. Waiting until you feel fatigued is often too late to catch up on lost energy.
For Activities Under 60 Minutes
For shorter, high-intensity workouts or races lasting less than an hour, supplemental fueling might not be necessary. Your body's natural glycogen stores are typically sufficient to power you through. However, some athletes prefer a preemptive approach:
- Before: Consume one serving (typically half a packet) of energy chews 5 to 15 minutes before your workout to top off your glycogen stores and provide an immediate energy boost.
For Endurance Activities (60–90 Minutes)
When your exercise extends past the 60-minute mark, your glycogen stores begin to deplete significantly. This is when strategic refueling becomes important.
- During: Start taking one serving of energy chews every 20 to 30 minutes, or a full packet every 45 minutes, along with water. This consistent intake helps to prevent energy dips and sustain performance levels.
For Ultra-Endurance Activities (Over 90 Minutes)
For efforts lasting 90 minutes or more, your fueling needs increase substantially. Athletes typically aim for a higher carbohydrate intake to sustain performance.
- During: Consume one full packet of energy chews every 45 to 60 minutes, with the goal of taking in 60 to 90 grams of carbohydrates per hour. For very long events, this might need to be increased to 80–120g of carbs per hour, using a combination of chews and other fuel sources. Consider using a mix of energy drinks, gels, and chews to combat flavor fatigue.
Important Considerations for Chews
- Hydration is Key: Always consume chews with water. The fluids help your body digest and absorb the carbohydrates more efficiently, which is critical for preventing gastrointestinal issues like cramping or bloating.
- Test Your Fuel: Never try a new fueling strategy on race day. Use training runs and rides to experiment with different brands, flavors, and intake schedules to find what works best for your stomach. Your digestive system can be trained to handle more fuel over time.
- Consider Caffeine: Some energy chews include caffeine, which can provide an additional mental and physical boost. Be mindful of your caffeine sensitivity and test caffeinated products during training. Avoid them later in the day if you are sensitive to caffeine or have trouble sleeping.
- Listen to Your Body: If you feel your energy levels dropping between scheduled intakes, it’s okay to take a chew slightly earlier. Likewise, if you experience any stomach discomfort, consider adjusting your intake frequency or quantity.
Comparison Table: Chews vs. Gels
| Feature | Energy Chews | Energy Gels |
|---|---|---|
| Texture | Solid, gummy, requires chewing. | Liquid, syrupy, consumed quickly. |
| Absorption Speed | Fast, but slightly slower than gels due to chewing. | Very fast, absorbed quickly into the bloodstream. |
| Consumption | Can be consumed in smaller, controlled portions. | Typically consumed all at once per packet. |
| Portability | Excellent, easy to carry in pockets or packs. | Excellent, small, and compact packets. |
| Ease During High Intensity | Requires chewing, which can be difficult during maximal effort. | Easier to consume during high intensity, requires less interruption. |
| Flavor Fatigue | Offers a satisfying chewable experience, good for combating taste boredom. | Can lead to flavor fatigue during very long events. |
| Mess Factor | Generally less messy than gels. | Can be sticky if spilled or handled poorly. |
| Usage | Best for steady efforts or as a supplement to other fuel. | Ideal for quick, rapid fuel uptake during intense efforts. |
Adjusting for Intensity and Duration
The optimal frequency for your energy chews will ultimately depend on the specific demands of your activity. A high-intensity tempo run will burn through carbohydrates faster than a low-intensity long run. For a longer, more moderate-intensity event, a steady intake every 30–45 minutes might be perfect. In contrast, a high-intensity race might require more frequent, smaller doses every 20–30 minutes to match the higher energy expenditure.
Finally, remember that chews can also be combined with other fuel sources. Many athletes use a combination of energy chews, gels, and sports drinks to vary their intake and manage their overall carbohydrate consumption. For instance, a cyclist might use chews during a steady-state climb and opt for a quick-absorbing gel before a sprint. By understanding these nuances and practicing your nutrition strategy during training, you can effectively use energy chews to sustain your performance and reach your goals. For more in-depth nutritional guidance, consider consulting an expert from a source like GU Energy Labs..
Conclusion
The frequency at which you eat energy chews depends on your activity's duration and intensity, but for any exercise over 60 minutes, a consistent strategy is essential. Start fueling early with a serving about 5–15 minutes before and continue with a serving every 20–45 minutes during your activity. Always hydrate with water to aid digestion and test your strategy during training to find what works best for your body. By following these guidelines, you can maximize the benefits of energy chews and sustain your performance throughout your endurance efforts.