Cohort studycited by the Tayebat archiveabstract only checked A-UPF-11 standard review
Ultra-processed food and depressive symptoms
Prospective association between ultra-processed food consumption and incident depressive symptoms in the French NutriNet-Santé cohort.
Overview
Adjibade M et al.. BMC Med 2019 · PMID 30982472 · DOI 10.1186/s12916-019-1312-y
Each 10% more ultra-processed food: 21% more new depressive symptoms.
Does the study support the specific claim? Yes · Methodological quality: moderate
Plain-language summary
Study explained simply
- What did the researchers want to find out?
Is %UPF associated with incident depressive symptoms?
- How was the study done?
Prospective cohort; CES-D.
- How many people, animals or samples were studied?
26,730 (20,380 women + 6,350 men); 2,221 cases; Adults 18-86 without depressive symptoms at baseline
- What was actually found?
HR 1.21 (1.15-1.27) per 10% UPF; significant only for beverages and sauces/added fats subgroups.
- How large was the observed effect?
HR 1.21 (1.15-1.27)
- What do the results mean in everyday life?
Association.
- What are the study's limitations?
Symptom scale, not diagnosis; NOVA misclassification possible; Residual confounding; Self-reported diet
- What does it say about Elawady's specific claim?
Supports C-UPF-04.
- 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
- Adjibade M, Julia C, Allès B, Touvier M, Lemogne C, Srour B, Hercberg S, Galan P, Assmann KE, Kesse-Guyot E
- Journal
- BMC Med
- Year
- 2019
- Identifier
- PMID 30982472 DOI 10.1186/s12916-019-1312-y · PMC6463641
- Verification
- verified – PubMed E-utilities efetch, 2026-10-25
- Retracted
- no
- Corrections
- none
- Extent checked
- abstract only
- Conflicts of interest and funding
One author with pharma honoraria; others none
2. Research question
Is %UPF associated with incident depressive symptoms?
3. Study design and population
- Study design
- Cohort study – Prospective cohort; CES-D.
- Population
Adults 18-86 without depressive symptoms at baseline
- Country
France
- Period
Mean 5.4 y
- Sample size
26,730 (20,380 women + 6,350 men); 2,221 cases
- Inclusion and exclusion criteria
No depressive symptoms at first CES-D
4. Methods and endpoints
- Exposure / intervention
%UPF (per 10%)
- Comparator
Lower UPF
- Endpoints
Incident depressive symptoms (CES-D)
- Statistical methods
Cox
5. Actual results
- Results
HR 1.21 (1.15-1.27) per 10% UPF; significant only for beverages and sauces/added fats subgroups.
- Absolute risks
not reported
- Authors' conclusion
UPF positively associated with incident depressive symptoms.
6. Strengths
- Prospective
7. Weaknesses
- Symptom scale, not diagnosis
- NOVA misclassification possible
- Residual confounding
- Self-reported diet
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
Reverse causation possible.
9. Assessment of the statistical interpretation
Moderate HR.
10. Relevance to the specific claim
Supports C-UPF-04.
11. Independent contrary findings
None.
12. Transferability to Germany and Europe
High.
13. Overall methodological judgement
Supportive.
| Multidimensional assessment | |
|---|---|
| Authenticity of the source | verified |
| Methodological quality | moderate |
| Risk of bias | some concerns |
| Precision of results | high |
| Directness | direct |
| Reproducibility | partly replicated |
| Consistency with the overall evidence | mixed |
| Regional transferability | high |
| Adequacy of the interpretation (by the archive) | not applicable |
14. Open questions
Direction of causality.
15. Linked fact checks
- Ultra-processed foods increase the risk of depression and common mental disorders. – 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 depression.
- B. What did the authors find?
HR 1.21.
- C. What conclusions do the authors themselves draw?
As above.
- D. What does the archive derive from it?
Supports 'depression'.
- E. Is this derivation scientifically justified?
Consistent; association only.
- Adequacy of the interpretation (by the archive)
- not applicable