For more than twenty years, people have relied on this invaluable reference as a guide to improving health through nutrition and supplementation. Now thoroughly updated, the fourth edition incorporates the most recent information on the benefits of nutritional supplements and preventive therapies, including: • Updated dosage recommendations for vitamins, herbs, and other supplements • New discussions that reflect our evolving understanding of vitamin E and vitamin B12 • The most up-to-date research on disorders such as cardiovascular disease, diabetes, and fibromyalgia • The latest findings on a possible link between Alzheimer's and cardiovascular disease. Whether you are looking for relief from a particular ailment or simply wish to maintain optimum health, quickly and easily provides an abundance of information to design a complete nutritional program.