TL;DR. Eating during the race is not enough. 90% of amateur cyclists fail because they have not trained their digestive system to work under effort. Race nutrition requires 80-100 g of carbohydrates per hour at a glucose-fructose 2:1 ratio, sodium to prevent hyponatraemia, and months of gut training at high intensity. Improvising on race day is the recipe for failure.
The most common mistake is not eating poorly during the race. It is not having trained the digestive system to work under effort. And that cannot be improvised on race day.
Why do so many amateur cyclists fail at race nutrition?
In races longer than 200 km, the body needs to ingest between 80 and 100 grams of carbohydrates per hour to sustain target intensity. At race pace, with blood flow prioritised to the muscles, the intestine works at minimum capacity. If you have not trained carbohydrate absorption at high intensity during the months of preparation, the result is predictable: nausea, intestinal cramps or sudden energy crashes.
Is training nutrition the same as race nutrition?
Training nutrition and race nutrition are different disciplines.
In training you can survive on 40-50 g/hour. In a race, you need double. And the mix matters: glucose and fructose in a 2:1 ratio allow you to use two different intestinal transport pathways, increasing total absorption. Someone relying only on glucose gels has an absorption ceiling of 60 g/hour. Someone mixing sources can reach 90-100 g/hour without gastrointestinal issues.
What role does hydration and sodium play?
Hydration adds another layer of complexity. Losing 2% of body weight in fluids reduces performance by up to 10%. In the heat, that threshold is reached in under 90 minutes. Sodium regulates fluid retention and prevents hyponatraemia, especially in events longer than 5 hours.
Starting figures (adjustable per individual sweat rate):
- Fluid: 500-750 ml/h in mild conditions, 750-1000 ml/h in real heat.
- Sodium: 500-1000 mg/h in long events. Capsules or isotonic drink.
- Caffeine: 3 mg/kg 30-45 min before the start, and top-ups of 1-2 mg/kg in the last 2 hours.
How do you train the gut to tolerate carbohydrates at high intensity?
PUSH TRAINING 360 integrates nutrition protocols from the first week of preparation. Not as a macros spreadsheet, but as real gut training: learning to eat and drink while the body works at 80-85% of FTP. By the time you reach km 200, the system already knows what to do.
The protocol starts at 50 g/h in long sessions and progressively increases by 10 g every 2-3 weeks until you can tolerate the target 90-100 g/h. Without that adaptation phase, the perfect nutrition plan on paper translates to a portable toilet stop at hour 4.