Do you really think the medications and supplements you take every day are safe? This book clearly explains the dangers of medications and supplements that could unknowingly put you at risk. It's a pocket-sized book, so it's convenient to carry around! You can read it quickly during your commute or in your spare time. "I didn't know..." might be too late. Why not gain the correct knowledge with this book and reduce your health risks? This is a used book, as I have read it once. Please refrain from purchasing if you are concerned.