Long Run Fueling Ladder

Created by: Lisa Fahy, MSc, SENr — Sports Nutritionist
For: GTC Performance Hub

What this guide is for

Use this on long runs and long race rehearsals to build a race-ready gut and a simple, repeatable fueling routine.

Key takeaways

  1. Start low → build up (gut training matters).
  2. Fuel consistently (don’t wait until you feel empty).
  3. Most gels are ~20–25g carbs — use timing to hit your target.
  4. Take gels with water (small sips) to improve tolerance.
  5. Never try a new gel on race day.

The Ladder

  • Level 1 (Weeks 1–2): 30 g carbs/hour
  • Level 2 (Weeks 3–4): 45 g carbs/hour
  • Level 3 (Weeks 5–7): 60 g carbs/hour (only if Level 2 feels good)

Simple gel timing (most gels = 20–25g carbs)

  • For 30 g/hr:1 gel every 40–45 min (or drink mix to top up)
  • For 45 g/hr:1 gel every 30–35 min
  • For 60 g/hr:1 gel every 20–25 min (or combine gels + sports drink)

“Start” script

  • 10 min before running: optional gel (if tolerated)
  • Then: set a timer and fuel consistently
  • Take gels with water (small sips)

Fluid + salt

  • Drink to thirst (sip every 10–15 min)
  • If warm/heavy sweater: 300–600 mg sodium/hour

Common mistakes

  • Leaving fueling too late (first gel after 60–70 minutes)
  • Jumping straight to 60 g/hr without building tolerance
  • Taking gels without water
  • Trying a new product on race day

Troubleshooting

  • Stomach sloshy: smaller sips more often; reduce concentration; slow intake rate
  • Nausea late in run: switch to smaller doses more frequently; keep it simple
  • Energy crash: start fueling earlier; move up a ladder level gradually

Need this personalised? If you’re training for longer events (70.3/IM), struggling with GI issues, or want a race-day fueling plan, message me for 1:1 support.

For more nutrition tips, and useful links, visit my Nutrition Hub

Contact: Lisa at - hello@elevitanutrition.com

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Disclaimer: This content is general education for GTC members and isn’t medical advice. Individual needs vary—please practise fueling in training. If you have a medical condition (e.g., diabetes, GI disease) or a history of disordered eating, seek individual clinical support.