Modeling the Make America Healthy Again’s Food Policy Strategy on Tobacco
JAMA Health Forum
March 13, 2026
Christina A. Roberto, Alyssa J. Moran, Emily Broad Leib
Changing portion size labels of main courses to encourage selection of smaller portions when dining out: A randomized controlled field experiment
Appetite
March 2, 2026
Sophia V Hua, Christina A Roberto, Emily Yam, Eliza Leone, Laura A Gibson, Eric B Rimm
Unconditional cash transfers to improve health behaviors among primary care patients: a qualitative sub-study of a randomized clinical trial
Social Science & Medicine
March 1, 2026
Laura A Gibson, Aaron Richterman, Aaliyah Randall, Jonathan Muruako, Beth Uzwiak, Eva Fabian, Harsha Thirumurthy, Christina A Roberto
The impact of restaurant menu eco labels on consumer meal selections: a randomized controlled trial
American Journal of Preventive Medicine
January 8, 2026
Alexandria E. Reimold, Jennifer Falbe, Brent F. Kim, Aviva A. Musicus, Nina Carr, Raychel Santo, Clara Cho, Cindy W. Leung, Christina A. Roberto, Julia A. Wolfson
Identifying ultra-processed foods for policy
Nature Medicine
January 7, 2026
Alyssa J. Moran, Neha Khandpur & Christina A. Roberto
Point-of-sale sugar-sweetened beverage (SSB) warning posters vs. control posters were associated with reductions in school store SSB purchases made by Guatemalan adolescents
Public Health Nutrition
January 2, 2026
Violeta Chacón, Joaquín Barnoya, Laura A. Gibson, Sophia Mus, José Carlos Monzón Fuentes, Alisa Stephens, Marsha Trego, Caitlin Lowery, Christina D. Economos, Alison Tovar, Sara Folta, Christina A. Roberto
“High-In” front-of-package labeling of foods high in added sugars, sodium, and saturated fat: A randomized experiment
Appetite
October 20, 2025
Brittany Lemmon, Aviva A Musicus, Anna H Grummon, Marissa G Hall, Christina A Roberto, Eva Greenthal, Jennifer Falbe
A Natural Experiment to Evaluate Changes in Kids’ Meal Beverages in Fast-food Restaurants Following a Healthy Default Policy, 2019-2022
Journal of the Academy of Nutrition and Dietrics
March 27, 2025
Angie L Cradock, Jessica L Barrett, Jason P Block, Amy A Bolton, Carolyn Bresnahan, Lisa Harnack, Stephanie McCulloch, Christina A Roberto, Kristine Wiant, Alyssa Moran
The Philadelphia Beverage Tax and Pediatric Weight Outcomes
JAMA Pediatrics
November 25, 2024
Emily F Gregory, Christina A Roberto, Nandita Mitra, Emma K Edmondson, Joshua Petimar, Jason P Block, Gary Hettinger, Laura A Gibson
Associations of the Philadelphia sweetened beverage tax with changes in adult body weight: an interrupted time series analysis
The Lancet
November 1, 2024
Joshua Petimar, Christina A Roberto, Jason P Block, Nandita Mitra, Emily F Gregory, Emma K Edmondson, Gary Hettinger, Laura A Gibson
Sodium Reduction Is A Proven Strategy That Saves Lives—More Work Is Needed To Hold Industry Accountable
Health Affairs
August 16, 2024
Alyssa J. Moran, Marlene Schwartz, Christina A. Roberto
GLP-1 Agonists for Obesity
JAMA
July 31, 2024
Alyssa J. Moran, Christina A. Roberto
Comparison of Sales From Vending Machines With 4 Different Food and Beverage Messages: A Randomized Trial
JAMA Network Open
May 8, 2024
Laura A. Gibson, PhD; Alisa J. Stephens-Shields, PhD; Sophia V. Hua, PhD; Jennifer A. Orr, MSPH; Hannah G. Lawman, PhD; Sara N. Bleich, PhD; Kevin G. Volpp, MD, PhD; Amy Bleakley, PhD; Anne N. Thorndike, MD; Christina A. Roberto, PhD
Philadelphia Beverage Tax’s Impact on Beverage Ad Expenditures and Number of Ads Purchased
American Journal of Preventive Medicine
March 18, 2024
Sophia V. Hua, Matthew M. Lee, Rebecca Mozaffarian, Sara N. Bleich, Christina A. Roberto, Frances Fleming-Milici, Briana Stephenson, Erica L. Kenney
Impact of the Philadelphia Beverage Tax on Perceived Beverage Healthfulness, Tax Awareness, and Tax Opinions
Journal of Nutrition Education and Behavior
March 9, 2024
Caitlin M. Lowery, Christina A. Roberto, Sophia V. Hua, Sara N. Bleich, Nandita Mitra, Hannah G. Lawman, Lindsey S. Taillie, Shu Wen Ng, Laura A. Gibson
Are Caregivers’ Feeding Competence and Autonomy Associated with Healthier Restaurant Food Purchases for Their Child at Fast Food or Counter Service Restaurants? A Cross-Sectional Study in a Diverse Sample of U.S. Caregivers
Nutrients
February 7, 2024
Violeta Chacón, Sara C. Folta, Erin Hennessy, Tashara M. Leak, Hannah Macfarlane, Christina A. Roberto, Alison Tovar, Norbert Wilson, Christina D. Economos