Nutrition During Racing

Proper nutrition during a cycling race is crucial for maintaining performance and can determine victory or defeat. Modern professional teams rely on scientifically-based nutrition strategies that enable them to deliver peak performance for hours on end. Optimal fueling during racing stabilizes blood sugar levels, prevents performance drops, and allows the body to continuously maintain high intensities.

Basic Principles of Race Nutrition

Nutrition during racing is based on three central pillars: continuous carbohydrate intake, adequate fluid intake, and optimal timing. The human body can only store limited amounts of carbohydrates during intense exertion, which is why continuous external intake is essential. Modern research shows that professional cyclists can consume up to 120 grams of carbohydrates per hour during intense stages if the right carbohydrate sources are combined.

The body's ability to absorb and utilize carbohydrates during exertion is trainable. This is called "gut training" and enables elite athletes to absorb significantly more energy during racing than untrained athletes. The digestive system must be accustomed to food intake under stress, which is why nutrition during training should already simulate race conditions.

Carbohydrate Intake During Racing

Carbohydrate intake is the most important factor for performance during long races. Modern recommendations are based on race intensity and duration:

The combination of different carbohydrate sources is crucial. Glucose and fructose use different transport mechanisms in the intestine, enabling higher absorption rates. A ratio of 2:1 (glucose to fructose) has proven optimal in practice and is used by all leading nutrition brands.

Fluid Intake and Hydration

Fluid intake during racing is just as important as carbohydrate supply. A fluid loss of just 2% of body weight can measurably reduce performance. For a 70kg rider, this corresponds to only 1.4 liters of fluid loss, an amount that can be reached within an hour on hot days.

Individual sweat rates vary greatly between athletes and can be determined through sweat tests. Professional teams regularly conduct such tests to develop individual hydration strategies for each rider. Urine color serves as a simple indicator: light yellow to clear indicates good hydration, while dark yellow urine indicates fluid deficiency.

Drink temperature also plays an important role. Under hot conditions, chilled drinks (8-13°C) can help lower core body temperature. Professional teams use special thermos bottles or regularly exchange bottles from the team car to ensure optimal temperatures.

Practical Implementation in Race Day

Theoretical concepts must be implemented practically in race day. Professional teams develop individual nutrition plans for each stage that take into account route profile, weather conditions, and individual needs.

Timing of Food Intake:

• Food or fluid should be consumed every 15-20 minutes
• Start moderately in the first 60 minutes to avoid stomach problems
• Increase carbohydrate intake 30-45 minutes before mountain finishes
• Reduce intake in the last 30 kilometers to avoid stomach problems

Distribution of Energy Sources

The combination of different food sources prevents taste fatigue and enables continuous intake:

Special Nutrition for Different Race Phases

Different race phases present different nutritional requirements. The strategy must be dynamically adapted to the race situation.

Flat Stages with Sprint Finish:

• Continuous moderate carbohydrate intake (60-80g/hour)
• Focus on fluid at high speeds
• 45-60 minutes before the finale: caffeine gel for increased alertness
• Prefer easily digestible sources

Mountain Stages:

• Increased carbohydrate intake (90-120g/hour) before long climbs
• On the climb itself: only gels and drinks, no solid food
• Multiple unsaturated carbohydrates for even energy release
• After the summit: bars for mental variety

Time Trials:

• Fill carbohydrate stores to maximum beforehand
• During the race: for races under 1 hour, only mouth rinse
• For longer time trials: gel at predefined points
• Minimal stomach stress for optimal aerodynamics

Common Mistakes and How to Avoid Them

Even professionals make mistakes with race nutrition. The most common problems and their solutions:

Too Late Food Intake:

Many riders wait too long before their first food intake. The rule is: start after 20 minutes, even if you don't feel hungry yet. The energy need comes later, but intake takes time.

Monotonous Nutrition:

Always the same gels lead to taste fatigue and reduced intake. Vary between gels, bars, and real food. Salty options like mini rolls with ham can be a welcome change after hours of sweet gels.

Insufficient Fluid Intake:

At high race intensity, many riders forget to drink. Set fixed intervals (e.g., 2-3 sips every 10 minutes), regardless of thirst.

Experimenting in Competition:

New products should never be tested for the first time in a race. Gastrointestinal problems can end the race. Only use proven products.

Modern Technology and Monitoring

Professional teams increasingly rely on technology to optimize race nutrition. Continuous glucose monitors (CGM) enable real-time monitoring of blood sugar levels and help determine the optimal time for food intake.

Smartphone apps and bike computers can remind athletes of food and drink intervals. GPS-based systems can provide automatic reminders based on route profile when critical fueling points are approaching.

Analysis of performance data in combination with nutrition logs helps refine individual strategies. Teams document exactly what each rider consumed when and correlate this with performance data and subjective well-being.

Integration with Overall Nutrition Strategy

Nutrition during racing is only one part of the overall strategy. It must seamlessly integrate with Before the Race and After the Race.

A well-filled carbohydrate store before the race reduces the need during the race. Optimal nutrition after the race accelerates recovery and enables better performance the next day. In stage races, this integration is particularly critical, as new stresses accumulate daily.