Conflicting Outcomes from Systematic Reviews: Is the Consumption of Low Calorie Sweeteners a Benefit or a Risk for Weight Management?

12:45 PM - 2:45 PM

Location: 302

Sponsored By: PepsiCo

Low-calorie sweeteners can provide a sweet taste with minimal calories which, therefore, could be useful for those individuals desiring to lose weight or maintain weight loss while still consuming sweet-tasting items. Three systematic reviews and meta-analyses have been published in the last four years designed to answer whether this is in fact true, with differing outcomes. This program will provide a forum for the authors to review the methods, data and results of the three papers, while attempting to answer the question of how utilizing the same data in multiple meta-analyses could result in conflicting findings and conclusions.

Learning Objectives:


Barbara O. Schneeman, PhD

Professor Emerita


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Peter J. Rogers, PhD

Professor of Biological Psychology
University of Bristol
Bristol, England, United Kingdom

Peter Rogers is Professor of Biological Psychology at the University of Bristol, UK. He trained in biological sciences and experimental psychology at the University of Sussex UK (1972-1976). He completed his PhD and postdoctoral work at the University of Leeds UK, moving to the Institute of Food Research, Reading UK in 1990. He moved to the University of Bristol UK in 1999, where he teaches biological psychology and does research on nutrition and behavior: which includes work on human appetite and weight control, food choice, dietary effects on mood and cognitive function, and the psychopharmacology of caffeine. His first study on low-calorie sweeteners and appetite was published in 1988. Peter Rogers is a Chartered Psychologist, a Fellow of the British Psychological Society, and a Registered Nutritionist.


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Margaret Leahy, PhD

Food, Nutrition & Policy Solutions LLC
Fort Myers Beach, Florida

Marge Leahy is a consultant in the area of food science, nutrition and policy. Dr. Leahy brings nearly 30 years of experience in the food industry. She recently served as Senior Nutrition Advisor at the International Life Sciences Institute, North American Branch to four nutrition committees, bringing together academic, government and industry stakeholders to work cooperatively and with shared responsibility to advance the understanding and application of science to improve public health. She worked at the Coca-Cola Company from 2007 to 2013, serving as Director of Health and Nutrition Science. Prior to joining the Coca-Cola Company, Marge worked at Ocean Spray Cranberries for 21 years, and managed a pioneering research program investigating cranberry health benefits. She has served on the National Academies of Science Institute of Medicine Food Forum. She has been active in several industry association committees and served as chair of the American Heart Association Industry Nutrition Advisory Panel. She has served as a member of the University of Massachusetts Amherst Food Science Strategic Policy Alliance. Dr. Leahy earned PhD and MS degrees in food science from the University of Minnesota, and a BS degree in biology from the University of Missouri, Kansas City.


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Dylan Mackay, MD, MA, MPH, FACOEM, PhD

Assistant Professor
University of Manitoba
Winnipeg, Manitoba, Canada

Dylan MacKay is currently an Assistant Professor in the Department of Community Health Sciences at the University of Manitoba. He is also a Clinical Trialist at the George and Fay Yee Center for Healthcare Innovation.


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Conflicting Outcomes from Systematic Reviews: Is the Consumption of Low Calorie Sweeteners a Benefit or a Risk for Weight Management?

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