Oslo running guide 2026
Running Nutrition Oslo
What you actually need to eat — before, during, and after running. No pseudoscience, no expensive supplements you do not need.
Before your run
Timing and content vary with run length. Here is what actually works.
Full meal
Porridge with berries, eggs and toast, rice with chicken — carbohydrate-heavy and easy to digest. Avoid raw vegetables and beans which can cause GI issues.
Best for: Half marathon, marathon
Light snack
A banana, two rice cakes with peanut butter, or half a bowl of porridge. Enough to top up without weighing you down.
Best for: 10km, tempo sessions
Minimal intake
At most a banana or an energy gel. Eat more and you risk GI problems early in the run. Water is the priority.
Best for: 5km, easy runs
Fasted running
Works well for easy runs under 45–60 minutes. Not recommended for intervals or tempo sessions — those require fuel.
Best for: Morning jog, easy pace
During your run
Rule of thumb:
- • Under 60 min: water is enough
- • 60–90 min: 30–60g carbohydrates/hour (gels or sports drink)
- • Over 90 min: 60–90g carbohydrates/hour, electrolytes, hydration every 15–20 minutes
For half marathon and marathon: take a gel every 30–40 minutes starting from 45 minutes into the race. Test everything in training — never try anything new on race day.
Gels and sports drinks: what is worth the money
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Solix Picks
Race fuel
Tested options from budget to elite.
Hydrogel technology that dramatically reduces GI issues for most runners. Use from 45 minutes into a run. 25g carbohydrates per gel.
65–80 NOK
More affordable alternative to Maurten with good taste. 23g carbohydrates, available in Norwegian sports stores and at Gymgrossisten.
25–35 NOK
Powder drink with carbohydrates and electrolytes. Mixed with water. Works well for runs over 60 minutes and after hard efforts.
200–350 NOK (tub)
We may earn a small commission on purchases — this never affects our recommendations.
After your run
The first 30-minute window after finishing is the most important. After that, nutrient uptake gradually decreases.
Recovery target: 3:1 carb/protein
Quick fix
Chocolate milk 0.5L + banana. Works as well as expensive products for most runners.
Smoothie
Oats + protein powder + berries + milk. Easy to make, easy to digest.
Full meal
Rice or pasta + salmon/chicken + vegetables. Within 2 hours of finishing.
Recovery products that actually help
We may earn a commission on purchases via these links.
Solix Picks
Post-run recovery
Protein and carbs — nothing more complicated than that.
20–25g protein per serving. Take within 30 minutes of running, mixed with milk or oatmeal. Key building block for muscle repair.
300–500 NOK/kg
The cheapest and most effective recovery drink for most runners. Correct 3:1 carb/protein ratio, natural and easy to find anywhere.
20–30 NOK
We may earn a small commission on purchases — this never affects our recommendations.
FAQ: nutrition and running
What should I eat the day before a long run?
Focus on carbohydrates: pasta, rice, potatoes or bread. Eat dinner early (5–6pm) so your body digests before you sleep. Avoid new foods, heavy spice, and large amounts of fibre. Stay hydrated but do not overdo it.
Do I need gels for runs shorter than 10km?
No. Under 60 minutes of running, your body has enough glycogen stores. Gels and sports drinks become necessary from 60–90 minutes onwards. For 5km and 10km, plain water and a good breakfast are enough.
What is Maurten and is it worth the price?
Maurten is a Swedish sports gel and drink brand using hydrogel technology to reduce GI issues during racing. They are more expensive than competitors (roughly 60–80 NOK per gel), but many runners — including elite athletes — rely on them for half marathons and marathons. For everyday training, cheaper alternatives work perfectly well.
Which electrolytes do I need during running in Oslo?
Sodium is the most important — it retains fluid and replaces what you lose in sweat. Magnesium can help with cramps. For runs over 60 minutes in warm weather, supplement with a sports drink or electrolyte tablet. SiS GO Electrolyte and High5 Zero are popular and cheaper alternatives to Maurten.
What is best to eat after running?
Within 30 minutes of finishing: carbohydrates plus protein in roughly a 3:1 ratio. Example: a banana and a glass of chocolate milk, or a smoothie with oats and protein powder. Follow with a full meal of rice, chicken or salmon, and vegetables within 2 hours.
Can I run on an empty stomach in the morning?
Yes, for easy runs under 45–60 minutes at a comfortable pace, fasted running is fine and can improve fat adaptation. For interval training, tempo runs, or anything over 60 minutes, eat lightly 60–90 minutes beforehand — a banana or half a bowl of porridge works well.
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