Caffeine

Research regarding caffeine consumption and miscarriage risk is conflicting. Some research suggests that women who consume 200 milligrams of caffeine (equal to one 12-ounce cup of coffee) or more a day are more than twice as likely as women who consume no caffeine to have a miscarriage. Yet other research found no relationship between caffeine consumption and the risk of miscarriage, regardless of the amount consumed. There is no clear evidence that caffeine intake increases the risk of having a low-birth-weight baby. But because of these conflicting research results, it is impossible to know how much caffeine is safe to consume during pregnancy. Caffeine consumption does not appear to affect preterm birth.

However, it may be wise to limit your caffeine intake for other reasons. Excess caffeine can interfere with sleep and contribute to nausea and light-headedness. The diuretic effect of caffeine can increase urination and lead to dehydration. If you do cut down on caffeine, don’t just focus on coffee. Remember that caffeine also is found in tea, chocolate, energy drinks and soft drinks.