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Cycle Phase Energy Calculator

Estimate current menstrual phase and match training + nutrition guidance.

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Clinical Accuracy

Grade A

Follicular Phase
Current Day12Follicular Phase

Performance & Training

Optimal Window: Strength & Power

Intensity Strategy

Focus on high-intensity intervals and heavy lifting. Your body is primed for glycogen utilization and muscle protein synthesis.

Recovery Load

Moderate recovery needed. Estrogen is rising, supporting muscle tissue repair between sessions.

Power Output Capacity92%
Endurance Baseline78%
Injury Risk ProfileLow

Nutrition & Metabolic Fueling

Macronutrient Focus

Higher carbohydrate tolerance. Prioritize complex grains pre-workout. Protein target: 1.6–2.0 g/kg.

Hydration Status

Increase electrolyte intake. Plasma volume is shifting as phase progresses. Target 3L+ daily.

Metabolic Rate

Lower baseline temperature. Caloric expenditure is currently moderate — ideal for progressive overload.

Recommended meal

Recommended: Quinoa & Roasted Root Bowl

Daily Log

Energy Level
High
Mood Stability
Focused
Sleep Quality
8.5h
Muscle Soreness
Minimal

Physiological Roadmap

Days 1–5

Menstrual

Low hormone levels. High inflammation potential. Focus on mobility and active recovery.

Days 6–13Current

Follicular

Rising estrogen levels. Increased muscle building potential and insulin sensitivity.

Day 14

Ovulatory

Peak estrogen. Maximum strength window but higher risk of ligament laxity.

Days 15–28

Luteal

Progesterone rises. Metabolic rate increases. Focus on steady-state endurance.

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Estimate average cycle length and identify expected fertile days.

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Research Reference

biotechScientific Method

Determines cycle day from last period and maps phase-specific calorie/training suggestions.

Hausenblas HA & Downs DS. (2008)

Eat Weight Disord.

PMID: 18946234Read paperopen_in_new
Medical Disclaimer: Cycle-phase performance data is based on population-level hormonal research and represents generalised patterns. Individual variation is significant. Always consult your physician or sports medicine professional before modifying your training programme.