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Diet and follicular development.

P Hill, L Garbaczewski, N Haley

    The American Journal of Clinical Nutrition
    |May 1, 1984
    PubMed
    Summary
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    Diet significantly impacts the menstrual cycle. A vegetarian diet altered luteinizing hormone release in Caucasian women, while a Western diet affected follicular phase length in South African women, showing diet

    Area of Science:

    • Reproductive endocrinology
    • Nutritional science
    • Human physiology

    Background:

    • Menstrual cycle length averages 28 days but is influenced by various factors, including diet.
    • Understanding dietary impacts on reproductive hormones is crucial for women's health.
    • Previous research indicates diet can modify menstrual periodicity.

    Purpose of the Study:

    • To investigate the effect of a meatless vegetarian diet on menstrual cycle length and luteinizing hormone (LH) release in Caucasian women.
    • To examine the impact of a Western diet on the menstrual cycle in urban Black South African women.
    • To determine how diet influences gonadotropin release and follicular maturation.

    Main Methods:

    • Studied Caucasian women on a meatless vegetarian diet, assessing menstrual cycle length and LH release (both episodic and stimulated by luteinizing-releasing hormone).

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  • Investigated the effect of a Western diet on the menstrual cycle in urban Black South African women.
  • Statistical analysis was used to determine the significance of observed changes (p-values provided).

    • Main Results:

    • In Caucasian women, a vegetarian diet significantly decreased pituitary response to luteinizing-releasing hormone (p ≤ 0.01) and reduced episodic LH release (p ≤ 0.05).
    • In Black South African women, a Western diet significantly increased the duration of the follicular phase (p ≤ 0.01).
    • Dietary changes demonstrably affect hormonal regulation of the menstrual cycle.

    Conclusions:

    • Diet is a significant factor that modifies the episodic release of gonadotropins.
    • Dietary patterns influence key aspects of reproductive function, including follicular maturation.
    • Findings highlight the interplay between nutrition and the endocrine regulation of the menstrual cycle across different populations.