Marathon Performance Nutrition

Bespoke fuelling strategies to prevent ‘hitting the wall’, GI distress and underperformance this race season

Elite protocols. Clinical precision. Real results.
Dr Richard Allison | SENr Performance Nutritionist

Periodised fuelling that works for pros and ambitious amateurs, getting you across the line healthy, strong, and hitting your targets.

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Marathoners who...

  • Chase PBs

  • First marathon finishers

  • Hit the wall

  • Want structured fuelling/hydration protocols

  • Experience gut issues on race day

You get…

  • Personalised g/h carb targets

  • Race-week fuelling calendar

  • Gut-training protocols

  • Injury-prevention nutrition

10-Week Marathon Race Prep Package

What you get:

• Initial assessment (training load, race goals)

• Personalised daily fuelling plan (periodised)

• Race-week nutrition playbook (48h pre-gun) + unlimited async (real time) support

• Post-race recovery protocol

Marathon fuelling that works – from someone who's been there

✓ Carb-loading protocols that actually maximise glycogen without GI overload

✓ Race-day fuelling strategies (tested with elites and amateurs)

✓ Gut-training progressions to eliminate race-day distress

✓ Individualised plans

Case Study 1: First marathon → FINISHED STRONG

The challenge: Beginner marathoner, no prior race nutrition experience

• Needed pre/during/post-run fuelling guidance

• Stayed healthy through entire training block

• Custom nutrition for training runs + race day

• Fuelling strategy (that worked!)

• Health-focused approach throughout prep

Result: 5:41:15 FINISH

✅ Crossed finish line

✅ No illness/injury during training

✅ "Nutrition was def a big part"

Case Study 2: 10-week prep → 2:43:18 PB

The challenge: Improve body comp + marathon performance in 10 weeks without compromising training.

Strategy:

• Gradual 2kg fat loss (200kcal avg daily deficit)

• Energy balance/surplus on high-training days

• Custom periodised fuelling to protect adaptations Result: 2:43:18 PB

✅ No injury, maintained muscle, race-day execution.