Alan R. Gaby, MD

Alan R. Gaby, MD, a Concord, New Hampshire–based specialist in nutritional medicine, past president of the American Holistic Medical Association and a former professor of nutrition at Bastyr University in Kenmore, Washington. He is author of the textbook Nutritional Medicine,available from his Web site,

Vitamins & Minerals

There’s a Right Way (and a Wrong Way) to Take Your Supplements

Use our checklist to see how well you’re doing. If you take one or more dietary supplements, you may assume…


The 3 Supplements Everyone Should Take

Vitamin supplements have taken a beating lately. And plenty of people who use them to help ensure their good health…


Is Too Much Vitamin D Dangerous?

New Research Warns Against Overzealous Use of Vitamin D Slam on the brakes—after several years of exuberance about vitamin D…