King, Dewitt H. D D.S., PC in Memphis, Tennessee

This article offers clear, evidence-based guidance on today’s most common supplements—from vitamin D and B12 to iron, probiotics, magnesium, and omega-3s—so you can decide what’s worth taking and why. It explains who may benefit, typical doses, safety concerns, and the strength of the research, while highlighting potential side effects and drug–supplement interactions. You’ll also learn how to choose quality products (including third-party testing) and when to talk with a clinician, especially for children, older adults, pregnant people, and those with chronic conditions. The goal is to support informed, safe choices that complement—not replace—healthy habits and prescribed care.