Millions of people take a daily multivitamin thinking it’s improving their health—but what if it’s not helping at all… or even making things worse? A large study suggests multivitamins may not extend life and could slightly increase risk. In this guide, we break down what that really means, the flaws behind the headlines, and why personalized testing with Quantum Nutrition Testing (QNT) and Nutrition Response Testing (NRT) is a smarter approach. What the Research Says About M