Why are you tired? You may have the most common nutrient deficiency in the world, iron deficiency. In fact, one out of every five premenopausal women worldwide are iron deficient. While frequent, iron deficiency is an often-overlooked cause of fatigue and other chronic symptoms that can easily be treated by your doctor. In this book, you will learn how prevalent iron deficiency is worldwide, the many symptoms it can produce, and the most frequent causes of iron deficiency. Most importantly, this book outlines the many options available to treat your iron deficiency and improve your overall health.