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Associate Professor, Department of Human Sciences
Program Area: Human Nutrition
Dr. Tonya Orchard is a registered dietitian with more than 20 years of experience in clinical nutrition, nutrition counseling and consulting. She is currently the director of the Didactic Program in Dietetics and an assistant professor of human nutrition at The Ohio State University.Her research examines dietary components that modify chronic inflammation, with a focus on fatty acids in bone and joint diseases, and prevention of inflammatory side effects of chemotherapy with diet.
- PhD, Human Nutrition, The Ohio State University, 2011
- MS, Human Ecology, Specialization in Human Nutrition, The Ohio State University, 2006
- BS, Medical Dietetics, The Ohio State University,1986
Licensure and Registration
- L.D. Licensed Dietitian, State of Ohio, Ohio Board of Dietetics
- R.D. Registered Dietitian, Academy of Nutrition and Dietetics
- Adult Development and Aging
- Dietetics and Nutrition
- Dietary interventions to reduce chronic inflammation
- Food components and dietary patterns associated with musculoskeletal disease
- Foods, Nutrition, and Wellness Studies
- Human Nutrition
- Dietary supplement and dietary modification interventions to reduce side effects of cancer treatment
- Nutritional Science
Orchard's current projects includes research into:
- dietary prevention and treatment of chronic inflammatory conditions, with a focus on fatty acids and musculoskeletal diseases and conditions affecting women's health; and
- prevention of chemotherapy-induced side effects with diet.
- Orchard TS, Larson J, Cauley J, Chen Z, LaCroix A, Wactawski-Wende J, Jackson RD. Magnesium intake, bone mineral density, and fractures: results from the Women’s Health Initiative Observational Study. Am J Clin Nutr 2014, 99:926-33
- Sorensen MD, Chi T, Shara NM, Wang H, His RS, Orchard TS, Kahn AJ, Jackson RD, Miller J, Reiner AP, Stoller ML. Activity, Energy Intake, Obesity, and the Risk of Incident Kidney Stones in Postmenopausal Women: A Report from the Women’s Health Initiative. J Am Soc Nephrol 2014 Feb;25(2):362-9.
- Orchard TS, Ing SW, Lu B, Belury MA, Johnson K, Wactawski-Wende J, Jackson RD. The association of red blood cell n-3 and n-6 fatty acids with bone mineral density and hip fracture risk in The Women’s Health Initiative. J Bone Miner Res 2013 Mar;28(3):505-15.
- Orchard TS, Pan X, Cheek F, Ing SW, Jackson RD. A systematic review of omega-3 fatty acids and osteoporosis. British J Nutr 2012, Jun;107 Suppl 2:S253-60.
- Orchard TS, Cauley JA, Frank GC, Neuhouser ML, Robinson JG, Snetselaar L, Tylavsky F, Wactawski-Wende J, Young AM, Lu B, Jackson RD. Fatty acid consumption and risk of fracture in the Women's Health Initiative. Am J Clin Nutr 2010, 92(6) 1452-1460.
- San Antonio Breast Cancer Symposium. Poster Presentation: Relationship of dietary and red blood cell polyunsaturated fatty acids to inflammatory markers in breast cancer survivors taking aromatase inhibitors. San Antonio, TX, December, 2014
- Experimental Biology Annual Meeting. Poster Presentation: Magnesium intake is associated with greater bone mineral density but not protective against fractures in the Women’s Health Initiative Observational Study. Boston, MA, April, 2013
- Women’s Health Initiative Investigator Meeting. Poster Presentation: Association of red blood cell n-3 and n-6 fatty acids, inflammatory markers and hip fracture. Washington, DC, May, 2012
- American Society for Bone and Mineral Research Annual Meeting. Poster Presentation: Association of red blood cell n-3 and n-6 fatty acids and hip fracture. San Diego, CA, September, 2011
- American Dietetic Association Food and Nutrition Conference and Exposition. Research and Practice Innovations: Nutrition Research and Systems Biology Oral Presentation: Dietary n-3 and n-6 fatty acids and fracture in the Women’s Health Initiative. Boston, MA, November, 2010
- National Pre-Doctoral Clinical and Translational Science Conference. Oral Presentation: The relationship of dietary n-3 and n-6 fatty acids to osteoporotic fractures in the Women’s Health Initiative: The n-6 side of the story. St. Louis, MO, May, 2010
- National Pre-Doctoral Clinical and Translational Science Conference. Oral Presentation: Association of dietary n-3 and n-6 fatty acids on bone mineral density and fracture risk. St. Louis, MO, May, 2009