Ph.D., Tufts University; Postdoctoral Research, Human Nutrition Research Center on Aging, Tufts University; Postdoctoral Fellowship, Columbia University
Area(s) of Specialization:
Measures of diet quality, such as the Dietary Guidelines for Americans Adherence Index (DGAI_2010); Joint effect of diet and physical activity on health promotion/disease prevention and progression; Social determinants of health in diverse older adults; Strengthening policy-relevant research to inform policy decisions
Dr. Troy studies the impact of overall diet quality and components of a healthful diet on under-nutrition, obesity, body composition, and risk factors for chronic diseases. She also is interested in how government programs and policies affect diet quality and public health outcomes. Toward accomplishing these goals, Dr. Troy and her colleagues at Tufts University developed an index to measure adherence to the 2005 Dietary Guidelines for Americans. This index has been used in epidemiologic studies to examine how a diet consistent with federal guidelines relates to bone mineral density and the prevention of chronic diseases of aging including hip fracture, insulin resistance, and metabolic syndrome. Dr. Troy updated the DGAI to reflect the 2010 Dietary Guidelines for Americans. Dr. Troy applies diet quality indices and novel pattern analysis to chronic disease research to examine the role of diet and physical activity in relation to predictors of diabetes and heart disease. Her recent research investigates diet and physical activity patterns across the menopausal transition.
McKeown NM, Troy LM, Jacques PF, Hoffmann U, O’Donnell CJ, Fox CS. Whole- and refined-grain intakes are differentially associated with abdominal visceral and subcutaneous adiposity in healthy adults: the Framingham Heart Study. Am J Clin Nutr 2010; 92(5):1165-71
Wilde PE, Troy LM, Rogers BL. Food Stamps and Food Spending: An Engel Function Approach. American Journal of Agricultural Economics. 2009;91:416-30.
Troy LM, Jacques PF, Hannan MT, Kiel DP, Lichtenstein AH, Kennedy ET, Booth SL. Dihydrophylloquinone intake is associated with low bone mineral density in men and women. Am J Clin Nutr 2007; 86(2):504-8
Fogli-Cawley JJ, Dwyer JT, Saltzman E, McCullough M, Troy LM, Meigs JB, Jacques PF. The 2005 Dietary Guidelines for Americans and risk of metabolic syndrome. Am J Clin Nutr 2007; 86(4):1193-201
Fogli-Cawley JJ, Dwyer JT, Saltzman E, McCullough ML, Troy LM, Jacques PF. The 2005 Dietary Guidelines for Americans Adherence Index: Development and application. J Nutr 2006; 136(11):2908-15