Our Team


Judy Treu, MS, RD

Lead Research Associate

Phone: (203) 732-1371

Judy’s interests include healthy lifestyle promotion, health communication, and community-based and clinical research. At the PRC, she implements and evaluates nutrition and physical activity programs in community settings; conducts focus groups, surveys, and interviews; coordinates clinical research projects; provides nutrition guidance to study participants; and handles our website updates, and quarterly Newsflash issues. In addition to her training in health and nutrition, she is also a registered dietitian.


  • M.S., Nutrition, Pennsylvania State University
  • B.A., Health Science, State University of New York at Brockport

Slected Publications

  • Njike VY, Kavak Y, Treu JA, Doughty K, Katz DL. Snacking, satiety, and weight: a randomized, controlled trial. Am J Health Promot. 2017 Jul;31(4):296-301.

  • Treu JA, Doughty K, Reynolds JS, Njike VY, Katz DL. Advancing School and Community Engagement Now for Disease Prevention (ASCEND). Am J Health Promot. 2017 Mar;31(2):143-152.

  • Njike VY, Ayettey RG, Rajebi H, Treu JA, Katz DL. Egg ingestion in adults with type 2 diabetes: effects on glycemic control, anthropometry, and diet quality - A randomized, controlled, crossover trial. BMJ Open Diabetes Res Care. 2016 Dec 22;4(1):e000281.

  • Njike VY, Yarandi N, Petraro P, Ayettey RG, Treu JA, Katz DL. Inclusion of walnut in the diets of adults at risk for type 2 diabetes and their dietary pattern changes: a randomized, controlled, cross-over trial. BMJ Open Diabetes Res Care. 2016 Oct 19;4(1):e000293.

  • Njike VY, Ayettey R, Petraro P, Treu JA, Katz DL. Walnut ingestion in adults at risk for diabetes: effects on body composition, diet quality, and cardiac risk measures. BMJ Open Diabetes Res Care. 2015 Oct 19;3(1):e000115.

  • Katz DL, Gnanaraj J, Treu JA, Ma Y, Kavak Y, Njike VY. Effects of egg ingestion on endothelial function in adults with coronary artery disease: a randomized, controlled, crossover trial. Am Heart J. 2015 Jan;169(1):162-9.

  • Katz DL, Treu JA, Ayettey RG, Kavak Y, Katz CS, Njike V. Testing the effectiveness of an abbreviated version of the Nutrition Detectives program. Prev Chronic Dis. 2014 Apr 10;11:E57.

  • Katz DL, Katz CS, Treu JA, Reynolds J, Njike V, Walker J, Smith E, Michael J. Teaching healthful food choices to elementary school students and their parents: the Nutrition Detectives™ program. J Sch Health. 2011 Jan;81(1):21-8.

  • Katz DL, Cushman D, Reynolds J, Njike V, Treu JA, Walker J, Smith E, Katz C. Putting physical activity where it fits in the school day: preliminary results of the ABC (Activity Bursts in the Classroom) for fitness program. Prev Chronic Dis. 2010 Jul;7(4):A82.