Contact Information

(267) 519-4881
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Alissa Smethers


Postdoctoral Fellow, Monell Chemical Senses Center

Laboratory of

Dr. Julie Mennella


Ph.D., Nutritional Sciences, Pennsylvania State University
R.D., Nutrition, Marywood University

Research Summary

Prior to coming to Monell, I conducted a series of controlled feeding studies testing how environmental factors, particularly portion size and energy density, and individual differences influence preschool children’s energy intake over time. At Monell, the goals of my research are to build upon this knowledge and develop a broader understanding of how individual differences contribute to preferences and appetite. I’m particularly interested in the relationship between a person’s genes and their taste preferences (e.g. sweet and bitter) and how this influences ingestive behavior.


Taste, psychophysics, genetics, nutrition, eating behavior, children

Recent Publications

Smethers AD, Keller KL, Kling SMR, Roe LS, Sanchez CE, Zuraikat, FM, Rolls BJ (2019). Portion size has sustained effects over 5 days in preschool children: a randomized trial. American Journal of Clinical Nutrition, in press.

Zuraikat FM, Roe LS, Smethers AD, Rolls, BJ (2018). Provision of a to-go container attenuates the portion size effect in women. Appetite 129:162-170.

Zuraikat FM, Roe LS, Smethers AD, Reihart LW, Rolls, BJ (2018). Does the cost of a meal influence the portion size effect? Appetite 127:341-348.

Smethers AD, Rolls BJ (2018). Dietary Management of Obesity: Cornerstones of Healthy Eating Patterns. Medical Clinics of North America 102(1):107-124.