Article summary
ToggleGet an express summary of the article:
The article in brief
- Optimum timing: last main meal 3-4h before departure, light snacks up to 1h before departure
- Hydration: 500ml of water 2 hours before the start, then sips until 15 minutes before the start.
- Food base: 80-100g complex carbohydrates + 100-120g light protein
- Absolutely avoid: fatty foods, spicy foods, foods rich in insoluble fibre and novelty foods.
- Final snack: a banana 30-60 min beforehand for a rapidly assimilated energy boost
What's the right timing for your meal before a trail run?
Visit timing of your last meal before a trail run, it's super important! I always recommend eating your main meal between 3 and 4 hours before the start. This allows your body to digest properly and avoid any discomfort during the effort. For light snacks, you can allow yourself to nibble on something up to 1 hour before the start of your race. The idea is to set off with sufficient energy without a heavy stomach!
If you run early in the morning, don't panic! A light breakfast 2 hours beforehand is more than enough. The important thing is to test your eating habits during training to avoid unpleasant surprises on the big day.

Star foods to choose
Complex carbohydrates: your best allies
Visit complex carbohydrates are the basis of your pre-run diet! They give you the sustained energy your muscles need to go the distance. I always opt for wholemeal pasta, basmati rice and oats. These foods release their energy gradually, avoiding the blood sugar spikes that can play tricks on you in the middle of a race.
A portion of 80 to 100g of cooked pasta or rice, accompanied by a few vegetables, is a perfect base. Don't forget that your body stores this energy in the form of glycogen in your muscles and liver! This nutritional approach is similar to the principles used in dry feeder, where carbohydrate quality takes precedence over quantity.
Light proteins for recovery
Visit proteins play an important role, but be careful not to overdo it! Opt for easily digestible sources such as white fish, poultry or eggs. A 100-120g portion is more than enough. These proteins will help your muscles during exercise and prepare for post-training recovery.
For vegetarians, legumes such as red lentils or chickpeas are excellent, but remember to eat them a little earlier to aid digestion.
What foods should I absolutely avoid?
Some foods are real enemies before a trail run! The fatty foods such as fried foods, cold meats and sauces, slow down digestion enormously. Your energy will be monopolized by your digestive system instead of feeding your muscles.
- Foods rich in insoluble fibre (raw vegetables, excess wholegrain cereals)
- Dairy products in large quantities
- Strong spices and spicy foods
- Alcohol and soft drinks
- New foods never tested
These foods can cause digestive problems, bloating or cramps that will completely ruin your performance! What's more, if you're on a special diet, such as low-fiber foods for digestive reasons, this habit can be temporarily beneficial before a race.
Hydration: your performance trump card
L'hydration starts well before the start! I recommend drinking regularly in the 24 hours leading up to your trail run. Count on about 500ml of water 2 hours before the start, then sips until 15 minutes before the start.
Avoid drinking large quantities just before setting off, as this will only make your stomach heavier. Water remains the best option, but you can add a pinch of salt or opt for an isotonic drink if your trail exceeds 2 hours.
| Trail duration | Recommended hydration | Frequency |
|---|---|---|
| Less than 1 hour | Water only | According to thirst |
| 1 to 2 hours | Water + electrolytes | Every 15-20 minutes |
| Over 2 hours | Energy drink | Every 15 minutes |
A typical menu for a successful trail
Here are my suggestions for menus tested and approved by my trailing customers! These combinations offer the perfect balance between energy, digestibility and taste pleasure. The approach remains similar to that found in meals to dry, but with an energy intake adapted to the effort ahead.

Breakfast option (early departure)
- 1 bowl of rolled oats with a mashed banana
- 1 tablespoon honey
- 1 green tea or light coffee
- 1 glass water with a pinch of salt
Lunch option (afternoon departure)
A plate of basmati rice (100g cooked) with grilled fish (120g), some steamed zucchini and a drizzle of olive oil. Round off with a no-sugar-added apple compote and a digestive herbal tea. This menu gives you all the nutrients you need without overloading your digestive system!
Pre-race snack
This little snack 30 to 60 minutes before the start is your final boost! A ripe banana remains my number-one choice: it provides rapidly assimilated carbohydrates and potassium to prevent cramps. You can accompany it with 2-3 dates or a homemade energy compote.
Some of my customers love homemade energy bars made with oats, honey and dried fruit. The advantage is that you have complete control over the ingredients! Avoid over-sweetened industrial bars, which can cause blood sugar levels to plummet. To optimize this strategy, you can draw inspiration from the principles of calculation of basal metabolic rate to adapt your energy intake.
My coaching tips for optimizing your diet
Having accompanied many trail runners, I can assure you that the nutritional preparation makes all the difference! Always test your eating strategies during your training outings. Every body reacts differently, and what works for your running buddy won't necessarily work for you.
- Keep a food diary during your training sessions
- Note your digestive and energy sensations
- Adapt quantities to the length of your trail
- Prepare your meals the day before to avoid stress
Don't forget that your diet in the 2-3 days leading up to the trail also counts! Give priority to familiar foods, and increase your food intake slightly. carbohydrates and reduce fiber. Your body will thank you on D-Day with maximum energy and optimal digestive comfort! This nutritional strategy can also be perfectly integrated into a high-protein diet for endurance athletes.





