... of over-weight and obesity (a body mass index of >25 kg/m2) is 59 percent in men and 51 percent in women (NIH, 1998). All but one of the 16 clinical trialsthat examined the influence of ... Medicine). 1998. Dietary Reference Intakes for Thiamin, Riboflavin, Niacin,Vitamin B6, Folate, Vitamin B12, Pantothenic Acid, Biotin, and Choline. Washington, D.C .: National Academy Press.Johnson ... of indirect expenses. In view of the high prevalence and incidence of CVDs in the elderly, a sub-stantial fraction of Medicare expenditures are related to these conditions.For instance, in...