Jean Carper is a New York Times best-selling author, columnist, contributing editor to USA WEEKEND Magazine and a leading authority on health and nutrition. She is the author of 24 books including 100 Simple Things You Can Do to Prevent Alzheimer's and Age-Related Memory Loss, Your Miracle Brain, Miracle Cures, Food: Your Miracle Medicine and the award-winning Stop Aging Now!. Stop Aging Now! details cutting-edge research showing that specific vitamins, minerals, herbs and foods have astonishing anti-aging powers. Click here to see her books.

Her renowned EatSmart column, which she wrote for Gannett's Sunday supplement, USA WEEKEND, appeared every week for 14 years in 600 newspapers nationwide, with a readership of 51 million.

Previously she was senior medical correspondent for CNN, and a recipient of the cable industry's prestigious ACE award for a series on brain cancer. She has written more than 200 articles for national publications, such as The Washington Post and Reader's Digest, and has appeared on numerous television programs, including The Today Show, Good Morning America and Dateline.

She is also a well-known consumer advocate and has received an "excellence in journalism" award for her groundbreaking book, Stop Aging Now!, from the prestigious American Aging Association, made up of leading academic and governmental scientists who investigate the causes of aging and how to slow it down.

Jean Carper serves on the board of the American Aging Association. She is also on the advisory board of the American Botanical Council, the most reliable source of information on medicinal herbals. You can learn more about Jean Carper at JeanCarper.com.

John Cannell, MD, is the founder and executive director of The Vitamin D Council, a non-profit working to create awareness of the global epidemic of vitamin D deficiency. The vitamin D Council is dedicated to spreading the word about the importance of getting adequate vitamin D through a combination of sun exposure, supplementation and food sources.

Dr. Cannell is Board Certified by the American Board of Psychiatry and Neurology and is a physician with 30 years of experience in general medicine. In 1983, he founded Cannell Clinic, Inc., in West Virginia, which funded a prominent anti-smoking campaign to change the chronic smoking habits of coal miners.

In the late 1990s, Dr. Cannell began working as a psychiatrist at Atascadero State Hospital, which reawakened his interest in clinical nutrition. His nutritional studies led to several discoveries about the overlooked need for vitamin D, and inspired him to create the Vitamin D Council in 2003 to promote the vital need for supplementation with vitamin D3.

Harry Preuss, MD, MACN, CNS, is a pioneer in the field of human nutrition, and is one of the world's foremost experts on the use of dietary supplements to combat obesity. Dr. Preuss is a tenured professor at Georgetown Medical Center, a research fellow at the National Institutes of Health, and a certified nutritional specialist with more than 300 medical papers to his credit.

Dr. Preuss is a Fellow of the American College of Nutrition (FACN), a Certified Nutrition Specialist (CNS), and Co-Chairman of the GUMC Internal Review Board. He is also the past president and a master of the American College of Nutrition (MACN) and past president of the Certification Board for Nutrition Specialist (CNS). He is the author of author of Alternative Cures, Maitake Magic, The Prostate Cure and The Natural Fat-Loss Pharmacy, his acclaimed science-based guide that cuts through hype surrounding weight loss supplements.

Andreas M. Papas is a renowned vitamin E expert and a founding member of Yasoo Health. He holds a Ph.D. in Nutritional Biochemistry and combines 25 years of academic and industrial experience in nutraceuticals. A Fulbright Scholar at the University of Illinois, Dr. Papas is currently an Adjunct Professor at the College of Medicine at East Tennessee State University. He is the author of The Vitamin E Factor (HarperCollins, 1999) and editor of the scientific book, Antioxidant Status, Diet, Nutrition and Health (CRC Press, 1998).

Michael F. Holick, Ph.D., M.D. is Professor of Medicine, Physiology and Biophysics; Director of the General Clinical Research Center; and Director of the Bone Health Care Clinic and the Heliotherapy, Light, and Skin Research Center at Boston University Medical Center. 

Dr. Holick has made numerous contributions to the field of the biochemistry, physiology, metabolism, and photobiology of vitamin D for human nutrition. He has helped increase awareness in the pediatric and medical community regarding vitamin D deficiency in the U.S. population, and its role in causing metabolic bone disease, and osteoporosis in adults. 

Dr. Holick is a Diplomat of the American Board of Internal Medicine, a Fellow of the American College of Nutrition, a member of the American Academy of Dermatology and the American Association of Physicians.  He is the recipient of numerous awards and honors, including the American Skin Association’s Psoriasis Research Achievement Award, the American College of Nutrition award, the Robert H. Herman Memorial Award in Clinical Nutrition from the American Society for Clinical Nutrition, the Annual General Clinical Research Centers’ Program Award for Excellence in Clinical Research and most recently the Linus Pauling Award for Functional Medicine. 

Dr. Holick serves on a number national committees and editorial boards and has authored more than 300 peer-reviewed publications, and written more than 220 review articles, as well as numerous book chapters.  He has acted as editor and/or co-editor on eight books, and has written a book entitled The UV Advantage, published by ibooks, New York.

Dr. Passero completed four years of post-graduate medical education at the National College of Naturopathic Medicine in Portland, Oregon after receiving a Bachelor’s Degree in Environmental Biology from the University of Colorado. His Naturopathic training included extensive education in natural therapeutics in addition to detailed training in case management and scientific principles of medicine. Dr. Passero has trained with some of the nation's leading doctors in the field of natural medicine. In addition to private practice, Dr. Passero works with leading manufacturers of natural health products and as a Naturopathic Consultant. In his practice, Dr. Passero focuses on resorting harmony to both the body and mind using advanced protocols that incorporate herbal therapy, homeopathy, vitamin therapy and nutritional programs. Through education and guidance patients are able to unlock the natural healing power contained within each one of us.

Gale Maleskey, MS, RD has spent 20 years working as a full time professional writer, specializing in healthy lifestyles, food and nutrition, alternative medicine and medical consumerism. She has been a senior editor for Prevention Magazine, writing and editing their most popular columns and full-length feature articles. She is a clinical dietitian and author of seven books, including Nature's Remedies, Energy Forever and Vitamins and Minerals: Questions You Have, Answers You Need. She is a member of the American Dietetic Association's Nutrition in Complementary Care practice group and a member of the Association of Health Care Journalists. She maintains a private practice in nutrition counseling in Bridgewater, New Jersey.

Maggie Spilner is an expert on the health benefits of exercise and walking. She was a senior editor at Prevention Magazine for 17 years, writing a monthly walking column, newsletter and annual Walking Club Magazine. Maggie is considered an expert on lifestyle changes that encourage wellness and longevity. She has covered numerous topics including asthma, workplace wellness, arthritis, weight loss and stress reduction. She is the author of three books on walking, including Prevention's Complete Book of Walking for Health and Walk Your Way Through Menopause.

For more information, visit Maggie's website, Walk for All Seasons.