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Fuelling Strategy

FUEL &
NUTRITION
PLAN.

Nutrition isn't complicated — but most runners get it wrong. They under-eat on training days, over-eat on rest days, and have no race-day strategy.

This plan fixes all three. It's built around your training schedule, not a generic calorie target.

Use the macro calculator above to find your daily targets, then use this guide for timing and race-day execution.

🍞 Carbs
Your primary fuel. More on hard days, less on rest days. Never zero.
🥩 Protein
1.6–2.2g/kg daily. Spread across 4 meals. Non-negotiable for muscle retention.
🥑 Fat
18-22% of calories. Supports hormones and fat oxidation at easy paces.
💧 Hydration
500ml before runs. 400-600ml per hour running. Electrolytes for runs over 60 min.
Meal / TimingTraining DayRest DayKey Notes
Breakfast7–8amOats + banana + protein shake or eggs on toastEggs + veg + smaller portion of carbsAlways eat breakfast — skipping leads to overeating later
Pre-Run2 hrs beforeRice cakes + peanut butter, or banana + oatsAvoid high fat/fibre 2 hrs pre-run. Test everything in training first.
During RunRuns over 60 minGel or chews every 30-45 min + 400ml water per hrStart fuelling at 45 min — don't wait until you feel empty
Post-RunWithin 30 minProtein shake + banana, or chocolate milkRecovery window is real. Get 20-30g protein + carbs in fast.
Lunch12–1pmRice/pasta + lean protein + vegSalad + protein + smaller carb portionBiggest carb meal of the day on hard training days
Dinner6–7pmLean protein + veg + moderate carbsLean protein + lots of veg + minimal carbsCarb cycle: more carbs on hard days, fewer on rest days
Before BedOptionalGreek yoghurt or cottage cheeseGreek yoghurt or cottage cheeseCasein protein overnight supports muscle repair during sleep
💡 Carb cycling is simple: hard day = eat more carbs. Rest day = eat fewer carbs. Keep protein high every single day regardless.
TimingActionWhy
3 days outCarb load startsIncrease carbs to 8-10g/kg body weight per day. Keep fat and fibre low.Fill glycogen stores to maximum. Avoid anything new or risky.
Night beforeFinal carb loadPasta, rice, or potatoes with lean protein. Early dinner. No alcohol.Top up glycogen. Early dinner = digested by race morning.
Race morning3 hrs beforeFamiliar breakfast: oats/bagel + banana + coffee if used to it.Never try new foods on race day. Stick to what you trained with.
Race morning30 min before1 gel + 300ml water. Small banana or energy chew.Top up blood sugar immediately before the gun.
Miles 1–6Hold backWater at aid stations. No gel yet.Glycogen stores are full. Save gels for when you need them.
Mile 6 onwardsFuel every 30-45 min1 gel every 30-45 min + water. Alternate with electrolytes.Hitting the wall = running out of glycogen. Stay ahead of it.
Post raceWithin 30 minProtein + carbs immediately. Electrolytes. Then a proper meal within 2 hrs.Recovery starts the moment you finish. Don't skip this.
💡 The cardinal rule of race-day nutrition: never try anything new on race day. Every gel, drink, and food must be tested in training first.
CategoryBest ChoicesWhen to EatWhy
CarbsOats, rice, sweet potato, banana, pasta, bread, datesPre-run, post-run, training daysFast and slow release energy. Glycogen replenishment.
ProteinChicken, salmon, eggs, Greek yoghurt, cottage cheese, tofu, lentilsEvery meal, especially post-runMuscle repair and retention. Satiety.
Healthy FatsAvocado, nuts, olive oil, salmon, seedsLunch and dinnerHormone health, fat metabolism, anti-inflammatory.
Race FuelMaurten gels, SiS gels, Medjool dates, rice cakes, bananaDuring runs over 60 minFast-absorbing carbs that won't cause GI issues.
ElectrolytesSiS tablets, Precision Hydration, coconut water, salt tabsDuring and after long runsReplace sodium lost in sweat. Prevent cramp and hyponatremia.
AvoidHigh fibre pre-run, alcohol night before long run, anything untested race dayGI distress mid-run is the most common self-inflicted race problem.
💡 Caffeine works — 3-6mg/kg taken 45-60 min before a race improves performance by 2-4%. If you drink coffee regularly, a caffeinated gel at mile 18 of a marathon can be a game changer.