What is the difference between medicine and dietary supplement?

Medicine is a substance used to diagnose, treat, or prevent diseases and is typically subject to rigorous testing and regulation by health authorities to ensure safety and efficacy. Dietary supplements, on the other hand, are products intended to add nutritional value or support health but are not approved for disease treatment or prevention, and their regulation is less stringent. While medicines are often prescribed by healthcare professionals, dietary supplements can be purchased over the counter without a prescription. It's essential to consult healthcare providers before using either, especially if you have health conditions or are taking other medications.