For many Americans, taking daily vitamins and supplements is part of their daily routines. But are they necessary, or even safe? The answer depends on your age, health conditions, and other factors. It’s important to know some key facts about vitamins and supplements in order to make an informed decision about whether or not they’re a good choice for you. In this Q&A, Alyssa Rieser, RD and WIC Coordinator from Kaiser Permanente Washington, answers five common questions people have about vitamins and supplements.