How much caffeine is safe to drink during pregnancy?
What we found is that for women whose caffeine intake was more than 200 mg every day, the risk of miscarriage was double compared with women who did not have any caffeine during pregnancy. For those who consumed more than 200 mg a day, their miscarriage rate was about 25%. Below 200 mg, we also saw a slight increase in risk, [but] we were not able to make a more definitive assessment. Generally speaking, though, for [risks due to] environmental exposure in the context of miscarriage, there is rarely a threshold effect. Usually, the higher the dose, the bigger the effect. I would think, given this study finding and other study findings before, the first choice for women should probably be to stop drinking caffeine entirely at least for the first three to four months of pregnancy. But if you really have to drink, I think you should limit yourself to one regular coffee a day or less. Two hundred mg of caffeine is roughly about one-and-a-half to two [8 oz] cups of regular coffee. [In our s
