Although many rabbis and doctors have long recommended that pregnant women can
fast for 25 hours on Yom Kippur as long as they drink a limited amount of water,
new research at Soroka University Medical Center has found that doing so could
carry a significant risk of triggering premature delivery.
the findings, pregnant women can fast at no risk of premature birth up to the
Between the 20th and 37th week, however, it could be
Prof. Eyal Sheiner, head of an obstetrics department at the
Beersheba hospital who is on the faculty of Ben- Gurion University of the Negev,
said women in their 37th week of pregnancy until the 40th (final) week need not
worry because they were already approaching the delivery date.
David Adom annually acknowledges that it brings a greater percentage of women to
the hospital for delivery on Yom Kippur or a day or two later, but it has not
specified whether they were at the end of their pregnancies or had been
experiencing early contractions for months before the due date.
delivery, said Sheiner, is before the 37th week, and it constitutes more than
three-quarters of cases of complications in the fetus or even fetal death, which
occurs in 7-11 percent of premature deliveries.
A link between early
contractions and fasting had not been determined, and many doctors and rabbis
believed that fasting did not constitute a higher risk to the
Sheiner and colleagues compared a population of Jewish women who
fasted on Yom Kippur and gave birth with non-Jewish women who didn’t fast
The researchers, including Dr. Ro’i Shalit and Natalie Shalit, found
that on Yom Kippur, between 1988 and 2011, Jewish women were at significantly
higher risk – in fact, double the risk – of premature birth on the fast day than
during the week before Yom Kippur. There were 745 births on Yom Kippur during
this period, 52.1 percent Jewish, and 47.9% Beduin. The Beduin women, who did
not fast, were not at greater risk.
Not eating for more than a day is an
independent risk for premature birth, said Sheiner, “so we want to recommend
that pregnant women do not fast a full day on Yom Kippur.
women (or their husbands, doctors or rabbis) decide that she should fast on Yom
Kippur, they should at least drink, and if pressure, contractions or back and
stomach pains begin, go immediately for a doctor’s examination, Sheiner said.
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