Warning Labels for Ultra-Processed Foods
(UPF-LABELS-NIB Trial)
What You Need to Know Before You Apply
What is the purpose of this trial?
This trial tests how labels on food packaging influence consumer choices regarding ultra-processed foods (UPFs). Participants will view different labels on yogurts, cereals, and sliced breads to determine if warning or positive labels affect their perception and choice of these products. The main goal is to discover whether these labels encourage people to choose less processed options and better identify UPFs. U.S. adults in the CloudResearch Panel can join this trial. As an unphased trial, it offers participants the chance to contribute to understanding consumer behavior and potentially influence healthier food choices.
What prior data suggests that these labeling methods are safe for consumer perception studies?
Research has shown that adding labels to food products can influence how people perceive and select their food. These labels are safe and pose no health risks, serving as tools to help consumers make informed dietary choices.
The NIB + Not-UPF Green and NIB + Not-UPF Black labels highlight less processed foods, encouraging healthier choices without directly impacting health. Conversely, the NIB + UPFWL label identifies ultra-processed foods, which have been linked to health issues like obesity and heart disease. However, the label itself merely provides information and does not affect safety.
In summary, the labels under evaluation are safe for consumers. They aim to guide and educate, not to directly alter health.12345Why are researchers excited about this trial?
Researchers are excited about this trial because it explores the potential impact of warning labels on consumer choices regarding ultra-processed foods (UPFs). Unlike existing methods that mainly rely on nutritional education and labeling with nutritional facts, this trial examines how different types of warning labels, including "Not Ultra-Processed" labels in green and black, and an "Ultra-Processed Warning Label," might influence purchasing decisions. These treatments are unique because they directly address consumer behavior by providing straightforward visual alerts on packaging, potentially leading to healthier food choices. By understanding which labels are most effective, this trial could pave the way for new regulations that help reduce the consumption of ultra-processed foods and improve public health.
What evidence suggests that this trial's labels could be effective for changing consumer perceptions of ultra-processed foods?
This trial will compare different labeling strategies for ultra-processed foods (UPFs). Research has shown that UPFs link to health problems like obesity and heart disease. Participants in this trial will encounter various label types. The control group will see only the Nutrition Info Box (NIB), while other groups will see additional labels: the NIB + Ultra-Processed Warning Label (UPFWL), the NIB + Not Ultra-Processed Label (Green), and the NIB + Not Ultra-Processed Label (Black). Studies suggest that warning labels on UPFs might not significantly alter perceptions of their purchase or healthiness. However, evidence indicates these labels can improve recognition of UPFs, potentially leading to healthier choices. Conversely, labels indicating a product is not ultra-processed could encourage healthier eating habits, though effects may vary. Overall, these labels aim to guide better food choices based on processing levels.678910
Who Is on the Research Team?
Julia A Wolfson, PhD
Principal Investigator
Johns Hopkins Bloomberg School of Public Health
Are You a Good Fit for This Trial?
This trial is for adults in the United States. There are no specific health conditions or restrictions mentioned, so any adult interested in participating in an online study about food labels may be eligible.Inclusion Criteria
Exclusion Criteria
Timeline for a Trial Participant
Screening
Participants are screened for eligibility to participate in the trial
Randomization and Label Exposure
Participants are randomized to one of four label conditions and exposed to the assigned label during the online survey
Outcome Assessment
Participants complete tasks to assess shelf choice, correct identification of UPF products, perceived healthfulness, perceived usefulness, and perceived message effectiveness
Follow-up
Participants are monitored for any additional feedback or data collection post-experiment
What Are the Treatments Tested in This Trial?
Interventions
- NIB: Label exposure in mock-up UPF and Not-UPF products
- NIB+Not-UPF Black: Label exposure in mock-up UPF and Not-UPF products
- NIB+Not-UPF Green: Label exposure in mock-up UPF and Not-UPF products
- NIB+UPFWL: Label exposure in mock-up UPF and Not-UPF products
Trial Overview
The study tests how different food labels—an ultra-processed warning label, a positive not-ultra-processed label (in black or green), and just the Nutrition Information Box—affect what foods people choose and how they view processed foods. Participants are randomly assigned to one of four groups.
How Is the Trial Designed?
4
Treatment groups
Experimental Treatment
Active Control
Nutrition Info Box (NIB) + Ultra-Processed Warning Label
Nutrition Info Box (NIB) + Not Ultra-Processed Label (Green)
Nutrition Info Box (NIB) + Not Ultra-Processed Label (Black)
Nutrition Info Box (NIB) Only
Find a Clinic Near You
Who Is Running the Clinical Trial?
Johns Hopkins Bloomberg School of Public Health
Lead Sponsor
Citations
RE: FDA-2025-N-1973-0001: Ultra-Processed Foods
Robust scientific evidence demonstrates a connection between nutrition and health, specifically showing that healthy dietary patterns based on ...
What Does 'Ultra-Processed Food' Actually Mean?
However, Astrup pointed out that ultra-processed foods could be a marker of an overall “unhealthy” diet. He also suggested that the findings ...
Definitions of ultra-processed foods beyond NOVA - FAO AGRIS
Ultra-processed foods (UPFs) are associated with negative health outcomes, but current classification systems, including the dominant NOVA system, are ...
Ultra-Processed Foods, Nutrition Misinformation ...
A Georgetown University study finds front-of-pack nutrition labels have limited impact on healthier eating or obesity reduction. Those who read ...
An Analysis of the Economic Effects of a Federal Ultra ...
This paper evaluates the economic effects of federally mandating ultra-processed food (UPF) labeling. In August 2026, HHS and FDA forwarded ...
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labelservice.co.uk
labelservice.co.uk/the-role-of-food-labels-in-the-fight-against-ultra-processed-products/The Role of Food Labels in the Fight Against Ultra- ...
While they may be cheap, tasty, and shelf-stable, they've also been linked to rising rates of obesity, heart disease, diabetes, and even some ...
Packaged food labels boasting products that aren't ...
The best and least time-consuming method to identify ultra-processed foods is to check the ingredients list. If it has more than 5 ingredients, ...
Read the labels: avoid ultra-processed foods - Nutremys LAB
Read labels like an expert: avoid ultra-processed foods, even organic ones. Hidden additives, misleading claims, and key criteria.
Should black warning labels be placed on ultra-processed ...
Should black warning labels be placed on ultra-processed food to raise awareness of its potential health risks?
What Does 'Ultra-Processed Food' Actually Mean?
Research has also linked UPFs with negative health outcomes like: Hypertension7 Cancer8 Type 2 diabetes9 Higher
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