Teas that may stimulate or increase menstrual bleeding include ( 12, 16, 17): Teas that may increase your risk of miscarriage or preterm labor include ( 11, 12, 13, 14, 15): However, they may contain other compounds considered unsafe during pregnancy, which may result in risky side effects. Herbal teas are made from dried fruits, flowers, spices, or herbs and therefore contain no caffeine. Although they’re generally safe, women may benefit from limiting their daily intake of these caffeinated teas during pregnancy.Ĭertain herbal teas may have risky side effects

summaryīlack, green, matcha, oolong, white, and chai teas contain caffeine, a stimulant that should be limited during pregnancy. However, their intake may need to be limited to avoid consuming too much caffeine per day ( 10, 11). For instance, research suggests that this small proportion of women may have a 2.4 times higher risk of miscarriage when consuming 100–300 mg of caffeine per day ( 8).Ĭaffeinated teas contain less caffeine than coffee and are generally considered safe to drink during pregnancy. However, some women’s genetics may make them more sensitive to the ill effects of caffeine. These risks appear minimal when pregnant women limit their caffeine intake to a maximum of 300 mg per day ( 8). High caffeine intake during pregnancy may also increase the risk of miscarriage or stillbirth ( 7, 8, 9). Research suggests that infants exposed to too much caffeine during pregnancy may have a higher risk of being born preterm or with a low birth weight or birth defects. As such, infants are more likely to experience side effects from amounts of caffeine that would otherwise be considered safe for adults. They each provide approximately the following amount of caffeine per cup (240 mL) ( 2, 3, 4, 5, 6):Ĭaffeine can easily cross the placenta, and your baby’s immature liver has difficulty breaking it down.

They contain caffeine - a natural stimulant that should be limited during pregnancy. Black, green, white, matcha, chai, and oolong teas are all sourced from the leaves of the Camellia sinensis plant.

Sleepytime tea pregnancy safe