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Are caffeinated beverages risk factors for delayed conception?

M R Joesoef1, V Beral, R T Rolfs

  • 1Division of Sexually Transmitted Diseases, Centers for Disease Control, Atlanta, Georgia 30333.

Lancet (London, England)
|January 20, 1990
PubMed
Summary

Caffeine consumption from coffee, tea, and cola drinks does not appear to affect the time it takes for fertile women to conceive. This study found no link between caffeine intake and infertility in women.

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Area of Science:

  • Reproductive Health
  • Human Reproduction
  • Epidemiology

Background:

  • Fertility and conception are influenced by various lifestyle factors.
  • Understanding the impact of common dietary components like caffeine is crucial for reproductive health.
  • Previous research on caffeine and fertility has yielded mixed results.

Purpose of the Study:

  • To investigate the association between caffeine consumption from beverages and time to conceive in fertile women.
  • To examine if caffeine intake is linked to infertility in women.

Main Methods:

  • A cohort study involving 2817 women who recently had a liveborn child to assess time to conceive.
  • Analysis of caffeine consumption from coffee, tea, and cola drinks.
  • A case-control study with 1818 infertile women and their primiparous controls to assess infertility.

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Main Results:

  • No significant association was found between caffeine consumption levels (ranging from <1 cup/week to >2 cups/day) and average time to conceive.
  • The fecundability ratio between high (>7000 mg/month) and low (≤500 mg/month) caffeine consumers was 1.03 (95% CI 0.92-1.16), adjusted for risk factors.
  • Caffeine consumption was not associated with infertility in the studied population.

Conclusions:

  • Caffeine intake from common beverages does not appear to adversely affect fecundability or increase the risk of infertility.
  • These findings suggest that moderate caffeine consumption is safe for women trying to conceive.