There’s often an assumption that vitamins can only ever be good for you, and more and more fertility patients are taking more and more supplements of all kinds of different vitamins. Now, a new study from Denmark suggests that taking high doses of vitamin D supplements may actually reduce the chances of getting pregnant.
This wasn’t a huge trial as fewer than 200 women took part, but they were all planning a pregnancy and all had low levels of vitamin D. They were given different doses of vitamin D supplement and some were given placebos. The researchers found that there was a significantly lower pregnancy rate among the women in the group given the higher vitamin D dose – for the lower dose, there wasn’t a marked difference. You can read more about the study here