Harvard Health Tips
Safety with dietary supplements
Talk to your doctor or pharmacist before you start taking any vitamins, minerals, or other kinds of dietary supplements. Many interact with medications and with each other, and some are not recommended for people with certain health conditions. Women who are pregnant or breastfeeding shouldn't take a supplement without talking to a doctor or midwife. Most supplements haven't been tested for safety in children, so children shouldn't take them without a doctor's advice.