Q: Can I thermogenic supplements during pregnancy?
A: The best selling thermogenic formulas are combinations of two drugs: caffeine and ephedrine. Both are known to possibly increase the risk of pregnancy complications. Nothing is known about the effect of many of the thermogenic ingredients, so the safety of using them while you are trying to conceive and during pregnancy has not been established. In addition, most manufacturers of thermogenic products suggest that you don't use them in pregnancy.