10 km Fuelling Guide: Optimise Your 10 km Running Nutrition for Race Day

Fuelling smart is the difference between fading at kilometre 7 and powering through the finish line. Whether you’re running your first 10K or gunning for a PB, this 10 km fuelling guide will help you develop a tailored strategy for 10 km running nutrition, hydration, and recovery.

From what to eat before a 10k race to carb loading for 10k, hydration strategy, and post-run recovery, we’ll also highlight top SiS products to help you perform at your best.

What to Eat Before a 10K Race

Your 10k pre-race nutrition sets the tone for energy, digestion, and focus. Aim for a low-fibre, high-carbohydrate meal 2–3 hours before your run to top up glycogen stores without causing stomach issues.

Smart Pre-Race Meal Ideas:

• Toast with honey and banana
• Rice with a poached egg and avocado
• SiS GO Energy Bar and electrolyte drink

Pre-run go-to: SiS GO Energy Bars
Light, quick to digest, and designed for optimal energy release before racing.

Carb Loading for 10K: Is It Necessary?

While 10km isn’t a marathon, carb loading for 10k can be beneficial—especially if you’re pushing hard or aiming for a PR. Begin 24–36 hours before your race.

How to Carb Load:

• Increase your daily carb intake to ~6–8g/kg of bodyweight
• Prioritise simple carbs: rice, pasta, potatoes, white bread
• Avoid excess fibre to prevent GI distress

Power pick: SiS Beta Fuel Drink Mix
Delivers up to 90g of dual-source carbs per serve—perfect for the day before or heavy training blocks.

Hydration Strategy for 10K Races

A sound hydration strategy for 10k prevents cramps, keeps your core temp stable, and helps muscles function properly. Even 2% dehydration can impair performance.

Race-Day Hydration Plan:

• Drink 500–750ml of fluid 2 hours before your race
• Sip electrolytes pre-race to balance sodium and fluid levels
• Take 150ml of water with every gel during the race

Add this: SiS GO Electrolyte Sports Fuel
Combines fast-absorbing carbs with sodium, potassium, and magnesium for total hydration support.

Fueling for 10K Race Day

Fuelling during a 10km is all about timing and tolerance. You won’t need heaps of fuel, but the right energy at the right moment can make a big difference.

10k Race Day Fueling Plan (Expected Time: ~60 Minutes)

• Start line (0 min):
  GO Energy + Caffeine Gel with 150ml water
• 20 minutes:
  GO Isotonic Gel
• 40 minutes (optional):
  Another GO Isotonic Gel if you expect to run >50 mins

How much carbs during 10k?
Aim for 30–45g of carbs total across the run, adjusted based on intensity and finish time.

Best match:

• GO Energy + Caffeine Gel – sharpens focus, delays fatigue
• SiS GO Isotonic Gels – no water needed, gut-friendly

Protein Recovery After 10K

Once you finish your 10k, recovery begins. Protein recovery after 10k is essential for:

• Muscle repair
• Glycogen restoration
• Reducing soreness

Post-Run Recovery Checklist:

• Within 30 mins: Take a carb-protein shake
• Rehydrate with electrolytes
• Eat a full meal within 2 hours

Recovery solution: SiS REGO Rapid Recovery
Formulated with 22g protein, 38g carbs + electrolytes to refuel, repair and rehydrate fast.

Final 10K Checklist: Fuel, Hydrate, Recover

Pick the best energy gel for your 10 km

We stock Australia’s top range of Science in Sport running nutrition—Informed-Sport tested, athlete approved, and backed by science.

Browse all SiS products
Fuel smarter. Finish faster. Recover stronger.

Disclaimer: While these tips can be a game-changer, it’s always best to consult a registered dietitian for personalised advice tailored to your specific needs and goals.

FAQs: 10KM Nutrition & Fuelling

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