ArticleJAMA network open2026
Trends in Ultraprocessed Food Consumption Among Korean Children and Adolescents, 2007 to 2024.
Article in JAMA network open, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
1 citing paper in PubMed.
- Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Importance: The prevalence of childhood obesity has tripled between 1999 and 2021, and the greatest increases have been observed in Asia. Ultraprocessed foods are considered a major risk factor for obesity; however, trends in ultraprocessed food consumption among Korean youths remain understudied. Objective: To examine 18-year trends in ultraprocessed food consumption stratified by obesity and demographic characteristics among Korean youths. Design, Setting, and Participants: This population-based cross-sectional study used 24-hour dietary recall data from 6 cycles of the Korea National Health and Nutrition Examination Survey from 2007 to 2024. Participants included Korean youths aged 1 to 18 years. Exposure: Survey cycles. Main Outcomes and Measures: The percentage of energy intake from ultraprocessed foods based on the Nova food classification system was estimated across survey cycles. Results: Among the 24 518 youths included, the weighted mean (SD) age of participants was 10.2 (5.1) years, of whom 12 797 (52.2%) were boys. From the 2007-2009 to 2022-2024 cycles, the percentage of energy from ultraprocessed foods increased from 24.6% (SE, 0.5%) to 33.0% (SE, 0.5%) (P < .001 for trend), while the percentage of energy from unprocessed or minimally processed foods decreased from 64.8% (SE, 0.5%) to 51.8% (SE, 0.4%) (P < .001 for trend). There was a greater increase in ultraprocessed food consumption among school-aged children (from 22.9% [SE, 0.6%] to 34.0% [SE, 0.6%]) and adolescents (from 28.7% [SE, 0.8%] to 36.9% [SE, 0.7%]) than among preschool-aged children (from 23.5% [SE, 0.6%] to 26.4% [SE, 0.9%]) and among youths without obesity (from 24.7% [SE, 0.5%] to 33.5% [SE, 0.5%]) than those with obesity (from 24.9% [SE, 0.8%] to 30.9% [SE, 1.1%]) (P ≤ .001 for interaction). Conclusions and Relevance: In this cross-sectional study of Korean youths, the estimated proportion of energy intake from ultraprocessed foods increased from 2007 to 2024, indicating that ultraprocessed foods became a more dominant part of Korean youths' diets, especially among older youths and those without obesity. These findings suggest the need for monitoring and preventive strategies to reduce intake.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.