Traffic Light Labels and Dietary Behavior Change: A Randomized Clinical Trial.
Liu H; Hu Z; Song Q; Xu J; Mai S; Zhu Z · 2025 · JAMA network open
WASTE classifies this as Negative / Null Result Report · AI classification, approximate
The study found no significant effect — useful as a negative control or null benchmark for your own design.
Abstract (excerpt)
Importance Evidence from everyday dining situations regarding the effects of traffic light labels (TLLs) on dietary improvement remains inconsistent. Objective To evaluate the effects of TLLs on dietary consumption and choices in cafeteria…
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Metadata source: Europe PMC · DOI 10.1001/jamanetworkopen.2025.10894