A new weight-loss drug is under fire, with health officials claiming it may cause long-term health problems in overweight patients. A study carried out by the makers of the diet pill, Qnexa, also found that there is a higher potential for birth defects in infants of women taking the drug during pregnancy.

But should expecting moms even be taking dietary supplements?

Sudden weight loss during pregnancy can threaten the baby’s development by depriving it of important nutrients, it can raise the risk of premature birth, and it can ultimately result in miscarriage.

The FDA has asked Vivus Inc. to come up with a plan to prevent pregnant women from having access to the pill, though doctors should also be communicating to their patients the risks associated with weight loss during the gestation period, including how to prevent miscarriage.

The right diet for you

Weight gain during pregnancy is both expected and encouraged, though it is also key to avoid piling on excessive pounds. To decide what type of diet is best for you and your baby, it is important to talk to your doctor, as any controlled weight loss should only be done under medical supervision.