Cohort studycited by the Tayebat archiveabstract only checked A-UPF-09 standard review

Ultra-processed food and BMI in France

Ultra-processed food intake in association with BMI change and risk of overweight and obesity: A prospective analysis of the French NutriNet-Santé cohort.

Overview

Beslay M et al.. PLoS Med 2020 · PMID 32853224 · DOI 10.1371/journal.pmed.1003256

Each 10% more ultra-processed food: 11% higher risk of overweight.

Does the study support the specific claim? Yes · Methodological quality: moderate

Original publication

Plain-language summary

Study explained simply

What did the researchers want to find out?: Is UPF associated with BMI change and overweight/obesity?
How was the study done?: Prospective cohort with repeated 24-h records.
How many people, animals or samples were studied?: 110,260; 7,063 overweight and 3,066 obese incident; Adults, 78% women
What was actually found?: BMI gain beta 0.02 per 10%; overweight HR 1.11 (1.08-1.14); obesity HR 1.09 (1.05-1.13).
How large was the observed effect?: HR 1.11 overweight
What do the results mean in everyday life?: Association.
What are the study's limitations?: NOVA misclassification possible; Residual confounding; Self-reported diet; Selection bias (authors)
What does it say about Elawady's specific claim?: Supports C-UPF-02.
Do the results apply to Germany and Europe?: High.
What can explicitly not be concluded from this study?: Causation.

Scientific in-depth review

1. Full reference

Authors: Beslay M, Srour B, Méjean C, Allès B, Fiolet T, Debras C, Chazelas E, Deschasaux M, Wendeu-Foyet MG, Hercberg S, Galan P, Monteiro CA, Deschamps V, Calixto Andrade G, Kesse-Guyot E, Julia C, Touvier M
Journal: PLoS Med
Year: 2020
Identifier: PMID 32853224 DOI 10.1371/journal.pmed.1003256 · PMC7451582
Verification: verified – PubMed E-utilities efetch, 2026-10-25
Retracted: no
Corrections: none
Extent checked: abstract only
Conflicts of interest and funding: Authors declared no competing interests

2. Research question

Is UPF associated with BMI change and overweight/obesity?

3. Study design and population

Study design: Cohort study – Prospective cohort with repeated 24-h records.
Population: Adults, 78% women
Country: France
Period: 2009-2019
Sample size: 110,260; 7,063 overweight and 3,066 obese incident
Inclusion and exclusion criteria: not stated in abstract

4. Methods and endpoints

Exposure / intervention: % UPF (per 10%)
Comparator: Lower UPF
Endpoints: BMI change; overweight; obesity
Statistical methods: Linear mixed models; Cox

5. Actual results

Results: BMI gain beta 0.02 per 10%; overweight HR 1.11 (1.08-1.14); obesity HR 1.09 (1.05-1.13).
Absolute risks: not reported
Authors' conclusion: Higher UPF associated with BMI gain and higher overweight/obesity risk.

6. Strengths

Large; sensitivity analyses

7. Weaknesses

NOVA misclassification possible
Residual confounding
Self-reported diet
Selection bias (authors)

8. Risk of bias

Orienting tool: ROBINS-E
Type of assessment: simplified assessment (abstract only)
Full formal assessment: no
Overall risk of bias: some concerns
Rationale: Confounding.

9. Assessment of the statistical interpretation

Small effects per 10%.

10. Relevance to the specific claim

Supports C-UPF-02.

11. Independent contrary findings

None.

12. Transferability to Germany and Europe

High.

13. Overall methodological judgement

Supportive.

Multidimensional assessment
Multidimensional assessment
Authenticity of the source	verified
Methodological quality	moderate
Risk of bias	some concerns
Precision of results	high
Directness	direct
Reproducibility	replicated
Consistency with the overall evidence	consistent
Regional transferability	high
Adequacy of the interpretation (by the archive)	not applicable

14. Open questions

Causality.

15. Linked fact checks

Ultra-processed foods drive overeating and weight gain: in an NIH randomized trial, people ate about 500 kcal more per day and gained 0.9 kg in two weeks on an ultra-processed diet. – Studies supporting the claim

Use by the Tayebat archive

Note: according to the archive, the studies were compiled by the archive operators. Whether Dr. Elawady himself cited this study is not established.

What the archive says about the study: Listed in the archive bibliography only (no archive interpretation card).
A. What was actually studied?: UPF and BMI.
B. What did the authors find?: As above.
C. What conclusions do the authors themselves draw?: As above.
D. What does the archive derive from it?: Supports weight claim.
E. Is this derivation scientifically justified?: Consistent.
Adequacy of the interpretation (by the archive): not applicable