Carbohydrate Loading Planner

ACSM-compliant pre-race carb loading schedule for marathon, triathlon & endurance athletes. Maximize glycogen stores for peak race performance.

Athlete Race & Carb Profile

For endurance events ≥90 minutes (marathon, triathlon, cycling). Short races DO NOT need carb loading.

Critical Carb Loading Disclaimer

This planner follows ACSM & ISSN sports nutrition guidelines for endurance events ≥90 minutes. Carb loading is NOT recommended for short races, diabetes patients, or those with GI issues. Results are for reference only – adjust based on your digestive tolerance. Consult a sports dietitian before race day changes.

Your Personalized Carb Loading Schedule

Daily Carb Target (ACSM Standard)
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Total Daily Carbs
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Calories From Carbs
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Pre-Race Daily Taper & Carb Plan

High-Carb Low-Fat Foods (Avoid Bloating)

* Based on ACSM 2023 endurance nutrition position stand. Carb loading maximizes muscle glycogen for events >90 mins. Always test food choices before race day.

ACSM Official Carb Loading Guidelines

  • Only for endurance events lasting 90+ minutes
  • Carb target: 7-10g per kg of body weight daily
  • Must pair with training taper (reduced volume)
  • Keep fat & fiber low to avoid GI distress
  • Hydrate consistently – carbs retain water

Carb Loading FAQ

Do I need carb loading for a 5K/10K?

No – carb loading is only beneficial for events lasting 90+ minutes. Shorter races have sufficient glycogen stores without loading.

Why is training taper required?

Reduced training allows muscles to absorb and store extra carbs as glycogen, the primary fuel for endurance performance.

How to avoid GI bloat during carb loading?

Limit high-fiber & high-fat foods, eat small frequent meals, and test your plan in training before race day.