(PhD, Cornell); School of Dietetics and Human Nutrition

Research Interests:

• The determinants of diet and nutritional status of children living in poverty and the means by which individuals, communities, and societies can intervene to promote optimal child nutrition and health;
• Role of HIV infection on dietary intake and maternal caregiving practices and infant well-being, effectiveness of mango supplements to improve vitamin A status;
• Effect of income and social networks on intakes and nutritional status of US Hispanics;
• Breastfeeding and complementary feeding practices, effectiveness of nutrition education on children’s intake, social adaptations to stresses that influence child health.

Selected Publications:

• Colecraft E, Marquis GS, Aryeetey R, Sakyi-Dawson O, Lartey A, Ahunu B, Canacoo E, Butler LM, Reddy MB, Jensen HH, Huff-Lonergan E. Constraints on the use of animal source foods for young children in Ghana: A Participatory Rapid Appraisal approach. Ecology of Food and Nutrition 2006; 45: 351-377.
• Stephensen CB, Marquis GS, Kruzich LA, Douglas SD, Aldrovandi GM, Wilson CM. Vitamin D Status in Adolescents and Young Adults with HIV Infection. American Journal of Clinical Nutrition 83(5):1135-41, 2006.
• Ferris, AM; Marquis GS. Bioethics in scientific research: conflicts between subject's equitable access to participate in research and current regulations. Journal of Nutrition 2005;135: 916-917.
• Kruzich LA, Marquis GS, Wilson CM, Stephensen CB. HIV‑infected U.S. youth are at high risk of obesity and poor dietary quality: a challenge for improving short‑ and long‑term health outcomes. Journal of the American Dietetics Association 2004;104:1554-1560.