One of the most common questions Dr Michael A. Smith hears from people is: ''I eat a pretty healthy diet. Do I really need to take supplements?'' His answer is always a resounding ''Yes!'' And there is a very good reason. In this book, Dr Smith covers the many reasons why even the healthiest diets fall short in terms of supplying the optimal amount of nutrients we need not just to survive, but, also, to thrive. However, with such a staggering amount of choices on the market, it''s easy to become overwhelmed.