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A Pilot Study of a Novel Dietary Intervention Targeting Ultra‐Processed Food Intake
Abstract
Background: Ultra‐processed foods (UPFs) are harmful to health but ubiquitous in the modern food environment, comprising almost 60% of the average American diet. This study assessed the feasibility, acceptability, and preliminary efficacy of a novel behavioral intervention designed to reduce UPF intake. Methods: Fourteen adults participated in an 8‐week pilot intervention, which consisted of weekly group sessions, individual meal planning sessions, and financial support. Dietary intake was assessed using three Automated Self‐Administered 24‐h Dietary Recalls (ASA24) at both baseline and post‐treatment. Results: The intervention was highly feasible and acceptable. Qualitative data demonstrated that participants were enthusiastic about the benefits of reducing UPF intake and found the intervention highly valuable. Participants reduced average daily calories from UPF by 48.9%, number of UPFs consumed by almost half, total daily calorie intake by 612 calories/day, sodium consumption by 37% and sugar consumption by 50%. There were no significant changes in fruit or vegetable intake. Participants lost an average of 3.5 kg (SD = 3.0 kg). Conclusion: This pilot data suggests that behavioral interventions to reduce UPF intake will be well‐received and are capable of success despite the barriers of the United States food environment. Future research should prioritize behavioral interventions targeting UPF consumption alongside policy changes.
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In the Drexel pilot study with 14 participants, the 8-week behavioural intervention designed to reduce UPF consumption led to a bodyweight reduction of 3•5 kg (1•8-5•2).
“In the Drexel pilot study with 14 participants, the 8-week behavioural intervention designed to reduce UPF consumption led to a bodyweight reduction of 3•5 kg (1•8-5•2).55”
From Ultra-processed foods and human health: the main thesis and the evidence (2025) · cites this paper as [55]
A US study at Drexel University assessed 14 adults in an 8-week pilot behavioural intervention designed to reduce UPF intake, and reported statistically significant reductions in daily energy intake (2561 kcal to 1949 kcal), the number of UPFs consumed (11.5 per day to 6.2 per day), and the energy from UPFs (1944 kcal/day to 993 kcal/day).
“Three 24 h dietary recalls before and after the intervention were used, and statistically significant reductions in daily energy intake (2561 kcal to 1949 kcal), the number of UPFs consumed (11•5 per day to 6•2 per day), and the energy from UPFs (1944 kcal/day to 993 kcal/day) were reported.55”
From Ultra-processed foods and human health: the main thesis and the evidence (2025) · cites this paper as [55]
The two crossover RCTs on ad libitum UPF and non-UPF diets matched for presented calories and macronutrients and the pilot behavioural intervention study found significant effects of the ultra-processed dietary pattern on weight changes.
“However, the two crossover RCTs on ad libitum UPF and non-UPF diets matched for presented calories and macronutrients and the pilot behavioural intervention study aforementioned found significant effects of the ultra-processed dietary pattern on weight changes.”
From Ultra-processed foods and human health: the main thesis and the evidence (2025) · cites this paper as [55]
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Ultra-processed foods and human health: the main thesis and the evidence
Monteiro, C. A., Louzada, M. L., Steele-Martinez, E., Cannon, G., Andrade, G. C., Baker, P., Bes-Rastrollo, M., Bonaccio, M., Gearhardt, A. N., Khandpur, N., et al. (2025) · The Lancet · doi:10.1016/s0140-6736(25)01565-x · Cited by 339
Metadata
- Authors
- Hagerman, C. J., Hong, A. E., Jennings, E., & Butryn, M. L.
- Affiliations
- Center for Weight, Eating, and Lifestyle Science Drexel University Philadelphia Pennsylvania USA
- Venue
- Obesity Science & Practice
- Publisher
- Wiley
- Published
- 2024-12
- Volume
- 10
- Issue
- 6
- ISSN
- 2055-2238
- PMC
- PMC11625872
- Cited by
- 12
- References
- 6
- Language
- en
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