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Fitness Guide

First Marathon Training: Mileage Build & Fueling Guide

Beginner runners training for their first marathon who need a structured, injury-prevention-focused approach to mileage and nutrition.

Nutrition targets

Estimated Daily Calories

2800 kcal

Protein Target

high

Key Exercises

  • Single-leg glute bridges
  • Clamshells for hip stability
  • Eccentric calf raises
  • Plank variations for core endurance

Expert Tip for Your Lifestyle

"Follow the 10% rule for weekly mileage increases and practice your race-day fueling strategy during every long run over 90 minutes to train your gut."

Frequently Asked Questions

How do I know if I am increasing mileage too quickly?

If you experience persistent pain that doesn't resolve after a rest day, or if you feel extreme fatigue that impacts your daily life, you are likely increasing volume too fast.

What should I eat during a long run?

Aim for 30-60 grams of easily digestible carbohydrates per hour, such as energy gels, chews, or sports drinks, starting 45 minutes into your run.

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