An estimated 15 million Americans ingest herbal products to increase energy, lose weight, treat hypertension and improve muscle tone.
Most people think herbs are harmless, organic substances.
In some combinations, they can be dangerous. If you take herbal supplements, be sure to inform your doctor to help him or her correctly diagnose and treat an illness. Your physician also can advise you about possible herb-drug interactions. This is especially important if you're planning to have surgery. The American Society of Anesthesiologists has documented critical changes in blood pressure and heart rate in patients using herbal supplements.