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Metabolic changes during the menstrual cycle.

J T Bisdee1, P J Garlick, W P James

  • 1Dunn Clinical Nutrition Centre, Cambridge.

The British Journal of Nutrition
|May 1, 1989
PubMed
Summary
This summary is machine-generated.

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Women

Area of Science:

  • Human physiology
  • Metabolic studies
  • Gynecology

Background:

  • The menstrual cycle involves complex physiological changes.
  • Understanding metabolic fluctuations during the menstrual cycle is crucial for women's health.

Purpose of the Study:

  • To investigate cyclical variations in body weight and metabolism.
  • To analyze carbohydrate, fat, and protein metabolism throughout the menstrual cycle.

Main Methods:

  • Studied eight women on a constant diet throughout one menstrual cycle.
  • Monitored body weight, urinary excretion (creatinine, nitrogen), and gas exchange.
  • Utilized a respiratory chamber for 24-hour metabolic assessments.

Main Results:

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  • Cyclical body weight variations were observed, linked to ovulation and menstruation.
  • Higher creatinine and nitrogen excretion occurred during the luteal phase.
  • Carbohydrate utilization was lower in the early follicular phase, especially when fed during the day.

    • Conclusions:

    • Body weight changes are not solely due to colonic function or storage.
    • Metabolic patterns, particularly carbohydrate utilization, show distinct phases during the menstrual cycle.
    • Further research is needed to fully elucidate the drivers of these metabolic shifts.