Related Experiment Video
Updated: Apr 5, 2026

Iterative Development of an Innovative Smartphone-Based Dietary Assessment Tool: Traqq
Published on: March 19, 2021
Potential problems with increasing serving sizes on the Nutrition Facts label.
Steven K Dallas1, Peggy J Liu2, Peter A Ubel3
1Stern School of Business, New York University, New York, NY 10012, United States.
Consumers may eat more food when serving sizes on Nutrition Facts labels increase. Research shows proposed larger serving sizes led to increased self-serving and purchasing of food for others.
Area of Science:
- Consumer Behavior
- Food Science
- Nutritional Labeling
Background:
- The U.S. Food and Drug Administration (FDA) is increasing serving sizes on Nutrition Facts labels.
- The impact of these updated serving size recommendations on consumer behavior is not yet understood.
Purpose of the Study:
- To investigate consumers' understanding of current serving size information.
- To determine if exposure to proposed, larger serving sizes influences food consumption and purchasing behaviors.
Main Methods:
- Study 1: Assessed consumer interpretation of Nutrition Facts label serving sizes.
- Studies 2-4: Examined the effect of current versus proposed Nutrition Facts labels on self-serving and purchasing behaviors for oneself and others.
Main Results:
- A majority of consumers (over 78%) incorrectly interpret serving sizes as recommended single-sitting portions.
- Exposure to proposed larger serving sizes led to significant increases in food served and purchased, including 41% more cookies, 27% more crackers, and 43% more lasagnas.
Conclusions:
- Consumers may misinterpret serving size information, assuming it represents a recommended portion.
- Increased serving sizes on Nutrition Facts labels may inadvertently encourage larger portion consumption and purchasing.
Related Concept Videos
Regulation of Food Intake
Drug Dosing: Obese Patients
Formulation and Manufacturing Process: Physical Attributes of Generic Tablets and Capsules
Overview of Protein Metabolism
Amino acids play various roles in the body once they are absorbed into cells. They are restructured...
Pharmacokinetics in Obese Patients: Drug Absorption and Distribution
Obesity

