American journal of preventive medicine
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Meta Analysis
A Meta-Analysis of Food Labeling Effects on Consumer Diet Behaviors and Industry Practices.
The influence of food and beverage labeling (food labeling) on consumer behaviors, industry responses, and health outcomes is not well established. ⋯ From reviewing 60 intervention studies, food labeling reduces consumer dietary intake of selected nutrients and influences industry practices to reduce product contents of sodium and artificial trans fat.