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Male Partner’s Caffeine Intake Linked to Miscarriage

Adapted from Lifestyle and Pregnancy Loss in a Contemporary Cohort of Women Recruited before Conception: The LIFE Study, published in March 2016 issue of Fertility and Sterility.

Caffeine may not be the best thing for couples who are planning to conceive. Caffeine is found in coffee, tea, colas, chocolate, and energy drinks.

While pregnant women have long been warned about caffeine consumption during pregnancy, a woman's consumption before conception, as well as her partner's, can increase the risk of miscarriage, according to a new study.

The study included 501 couples in Michigan and Texas who had stopped using contraception and were trying to become pregnant. The couples were instructed to keep daily journals of their lifestyle behaviors, including smoking cigarettes and drinking alcohol and caffeinated beverages.

Researchers followed couples every day from when they started trying to get pregnant through seven weeks after they became pregnant. Both male and female consumption of more than two caffeinated beverages a day was associated with almost doubling the rate of miscarriage.

Male pre-conception consumption of caffeinated beverages was just as strongly associated with pregnancy loss as females'.

The authors of the study note that the findings are not intended to suggest substituting decaffeinated or caffeine-free beverages is a safer alternative.

This study provides useful information for couples who are planning pregnancy and who would like to minimize their risk for early pregnancy loss.

May 2016

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