🔬 Why Carbohydrates Are Crucial for Athletes
Since the 1980s, scientists and sports nutritionists have emphasized that carbohydrate intake during prolonged exercise enhances performance. However, not all carbs are equal—some are metabolized faster, making them more effective in preventing fatigue and sustaining performance.
🧪 The Science Behind It
During extended workouts, muscles rely heavily on stored glycogen, a form of carbohydrate energy. But these stores deplete quickly—usually within 60–90 minutes—making external carbohydrate intake essential to maintain endurance and delay fatigue.
💡 Choosing the Right Carbohydrate
Fast-oxidizing carbohydrates like glucose, sucrose, maltodextrins, and some soluble starches are ideal during workouts. Others, such as fructose and galactose, are slower to absorb and may cause digestive issues if taken in high doses.
📌 Avoid:
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Drinks with only fructose or galactose
📌 Prefer: -
Sports drinks, gels, or diluted juices containing glucose-based carbs
⏱️ Timing and Dosage: How Much Is Enough?
According to the American College of Sports Medicine (ACSM), athletes should consume:
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30–60 grams of carbohydrates per hour during exercise
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Not more than 70 g/h to avoid GI discomfort
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Spaced out every 15–20 minutes in liquid or gel form for optimal absorption
💪 Benefits of Carbohydrate Intake During Exercise:
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Delays fatigue
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Improves endurance and speed
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Maintains mental focus
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Reduces muscle damage and inflammation
🧪 Experiment to Find Your Formula
Each athlete responds differently. Try different carb sources and observe what works best. Track your body’s response during both training and competition to avoid surprises on race day.
✅ Tips:
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Start with 30g/hour and increase gradually
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Mix fast carbs like glucose with a small dose of fructose
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Use drinks over solids during high-intensity sessions
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Monitor GI tolerance and energy levels
📚 Summary
Carbohydrates are more than just fuel—they are the key to sustaining peak performance during intense physical efforts. With the right type, timing, and quantity, athletes can optimize their training and competitive results.
🖊️ Author Credit:
Sohini Mukherjee
Sports Science Intern at SSI | April 2025 Edition
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