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Taking on a trail of around 12 hours? This Pack was made for you. Developed by a sports dietitian, it brings together a varied selection of products that are easy to digest and suited to very long efforts — where nutrition is no longer optional. Designed for trail runners discovering long-distance racing, this Pack gives you the keys to move forward with confidence, manage the unexpected, and fully enjoy your race from the first to the last kilometre.
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€61.56
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Description
Over a 12-hour effort, nutrition becomes a decisive factor. The body can no longer rely solely on its reserves: as carbohydrate availability decreases, it gradually shifts towards fat — a phenomenon known as the energy crossover. This shift leads to a drop in pace, increased perceived effort, and often the onset of digestive issues.
This Pack was designed to delay that critical moment. It offers an alternation of energy drinks, fruit pastilles, gummies, savoury purees, fruit compotes and gels, to maintain a regular intake of between 40 and 60 g of carbohydrates per hour — a key benchmark for a first trail of this duration. The varied textures help prevent flavour fatigue and allow you to adapt to how you feel in the moment, which is crucial when appetite fades and nausea may set in.
By structuring your hydration (sports drink + water) and your food intake every 40 to 45 minutes, this Pack helps you stabilise your energy, preserve your mental clarity and reduce the risk of digestive issues. It also supports the flexibility that is essential in an ultra: adapt, split, vary, and listen to how you feel.
The Trail Pack - 12h Effort is:
- A progressive energy supply to sustain up to 12 hours of effort
- A variety of sweet and savoury textures to prevent flavour fatigue
- A complete, structured Pack to simplify nutritional management in ultra trail
FAQ
Who is this Pack for?
This Pack is designed for trail runners tackling an effort of around 12 hours. It is aimed particularly at those who want to structure their nutritional strategy to maintain energy levels and limit digestive issues on their first ultra.
Why is nutrition essential over 12 hours?
Over such a long effort, the body can no longer rely solely on its reserves. Without a regular carbohydrate intake and appropriate hydration, an energy drop becomes inevitable, accompanied by mental fatigue and an increased risk of digestive issues.
What nutritional strategy should you follow?
The Pack is built around simple guidelines for a 12-hour effort:
- 40 to 60 g of carbohydrates per hour
- 1 food intake every 40 to 45 minutes (approximately 14 to 17 intakes)
- Do not go more than 1 hour without eating
- This regularity helps stabilise energy levels and prevent energy dips.
What hydration should you plan for?
- Drink every 10 to 15 minutes
- Around 500 ml (50 cl) of fluid per hour
- Alternate between sports drink and water
Why vary textures and include savoury options?
- Maintain the desire to eat
- Prevent flavour fatigue
- Improve digestive tolerance
- What does this Pack contain?
How do you manage digestive issues?
- Split your intake further
- Favour fluid textures
- Switch temporarily to savoury
- Maintain regular hydration
Should you test this Pack before the race?
Yes, it is essential. Test this strategy during long training runs to:
- Validate your digestive tolerance
- Test flavours and textures
- Adjust your intake frequency
Can you supplement with aid station food?
Yes. You can adapt based on your cravings: banana, dried fruit, chocolate or savoury foods such as cheese or crisps. The key is to keep your intake regular.
Who is Julia Baleine?
Julia Baleine is a sports dietitian specialising in endurance nutrition. She supports athletes in developing nutritional strategies tailored to their efforts, with the aim of optimising energy and performance over long-format events such as marathons.
Nutritional values
| Composition | Per 100g | Per product |
|---|---|---|
| Energy value in Kcal | 300 | 3102 |
| Energy value in Kj | 1255 | 12980 |
| Lipids (g) | 1.9 | 36.5 |
| Of which saturated fats (g) | 0.4 | 5.1 |
| Carbohydrates (g) | 64 | 625 |
| Sugar (g) | 41 | 410 |
| Fibre (g) | 0.9 | 12 |
| Proteins (g) | 2.8 | 36 |
| Salt (g) | 1.1 | 9.7 |
- Weight without packaging (g)
- 1106
- Weight with packaging (g)
- 1190
- Volume of water to add (ml)
- 3500
- Number of portions
- 23
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