Clinical Nutrition in Gastrointestinal Disease

Alan Buchman, MD, MSPH

Chapter 10: Dietary Supplements: Herbs And Vitamins (continued)

Timothy O. Lipman, MD

The gastroenterologist should know about dietary supplements, because his or her patient will probably be taking a supplement1 or because, in some instances, a supplement may be part of the therapeutic armamentarium. Estimates of supplement usage rates and costs vary; however, it is estimated 50% or more of the Western population is taking some form of supplement at a total cost of billions of dollars. Over 50% of supplement takers do not report this use to their physician.2 Only a handful of available dietary supplements have undergone rigorous scientific evaluation. According to the…