Core Strategies for Carb-Loading Based on Menstrual Cycle Variations

Monday, 27 October 2025, 12:41

Core guidelines suggest that carb-loading may need adjustments for women based on their menstrual cycle. This article explores these variations and strategies for optimal performance. By understanding the hormonal fluctuations throughout the cycle, individuals can optimize their carb intake for endurance events. Discover how to effectively fuel your runs at different cycle phases.
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Core Strategies for Carb-Loading Based on Menstrual Cycle Variations

Understanding Carb-Loading

Core knowledge about carb-loading shows that maximizing glycogen stores enhances performance during endurance events. The traditional method involved depleting glycogen levels before a race. Recent guidelines recommend increasing carbohydrate intake without depletion and include tips for two or three days before events.

Impact of Menstrual Cycle on Carb Needs

Exploring whether individuals who menstruate should tailor their carb-loading strategy based on their cycle phases is crucial. Hormonal fluctuations influence glycogen storage, particularly in the late follicular and mid-luteal phases, when estrogen levels rise. However, adequate carbohydrate intake can mitigate these effects during the early- to mid-follicular phase.

Practical Guidelines for Runners

  • Carbohydrate Intake Recommendations: Aim for 3.5 to 5.5 grams of carbs per pound of body weight.
  • Observation is Key: Track your cycle to assess changes in appetite and energy levels.
  • Consult a Dietitian: Consider working with a sports dietitian for personal strategies.

It's important for those who menstruate to monitor their individual responses to carb-loading.


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This article was prepared using information from open sources in accordance with the principles of Ethical Policy. The editorial team is not responsible for absolute accuracy, as it relies on data from the sources referenced.


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