Meta-analysisindependent cross-checkabstract only checked I-SOD-05 standard review
Fructose and gout: meta-analysis
Fructose intake and risk of gout and hyperuricemia: a systematic review and meta-analysis of prospective cohort studies.
Overview
Jamnik J et al.. BMJ Open 2016 · PMID 27697882 · DOI 10.1136/bmjopen-2016-013191
High fructose intake was linked with 62% higher gout risk in two cohorts; certainty low.
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 fructose associated with incident gout/hyperuricaemia?
- How was the study done?
Systematic review and meta-analysis of prospective cohorts with GRADE.
- How many people, animals or samples were studied?
2 cohorts; 125,299; 1,533 gout cases; Predominantly white health professionals
- What was actually found?
RR 1.62 (1.28-2.03), I2 0%; GRADE low (indirectness).
- How large was the observed effect?
RR 1.62 (1.28-2.03)
- What do the results mean in everyday life?
Fructose from any source may matter for gout.
- What are the study's limitations?
Only 2 cohorts; Indirect population
- What does it say about Elawady's specific claim?
Supports C-SOD-05 (with limitations).
- Do the results apply to Germany and Europe?
Moderate.
- What can explicitly not be concluded from this study?
Causation.
Scientific in-depth review
1. Full reference
- Authors
- Jamnik J et al.
- Journal
- BMJ Open
- Year
- 2016
- Identifier
- PMID 27697882 DOI 10.1136/bmjopen-2016-013191
- Verification
- verified – PubMed efetch 2026-10-25
- Retracted
- no
- Corrections
- none
- Extent checked
- abstract only
- Conflicts of interest and funding
One author WHO advisory travel support; other disclosures in record
2. Research question
Is fructose associated with incident gout/hyperuricaemia?
3. Study design and population
- Study design
- Meta-analysis – Systematic review and meta-analysis of prospective cohorts with GRADE.
- Population
Predominantly white health professionals
- Country
USA
- Period
Literature to Sept 2015
- Sample size
2 cohorts; 125,299; 1,533 gout cases
- Inclusion and exclusion criteria
Prospective cohorts
4. Methods and endpoints
- Exposure / intervention
Fructose intake highest quantile
- Comparator
Lowest quantile
- Endpoints
Incident gout
- Statistical methods
Generic inverse variance
5. Actual results
- Results
RR 1.62 (1.28-2.03), I2 0%; GRADE low (indirectness).
- Absolute risks
not reported
- Authors' conclusion
Fructose associated with gout in white health professionals; more studies needed.
6. Strengths
- GRADE
- No heterogeneity
7. Weaknesses
- Only 2 cohorts
- Indirect population
8. Risk of bias
- Orienting tool
- AMSTAR 2
- Type of assessment
- simplified assessment (abstract only)
- Full formal assessment
- no
- Overall risk of bias
- some concerns
- Rationale
Few studies.
9. Assessment of the statistical interpretation
Moderate effect.
10. Relevance to the specific claim
Supports C-SOD-05 (with limitations).
11. Independent contrary findings
None.
12. Transferability to Germany and Europe
Moderate.
13. Overall methodological judgement
Low-certainty support.
| Multidimensional assessment | |
|---|---|
| Authenticity of the source | verified |
| Methodological quality | moderate |
| Risk of bias | some concerns |
| Precision of results | moderate |
| Directness | direct |
| Reproducibility | partly replicated |
| Consistency with the overall evidence | consistent |
| Regional transferability | moderate |
| Adequacy of the interpretation (by the archive) | not applicable |
14. Open questions
Other populations.
15. Linked fact checks
- Two sugary sodas a day double the risk of gout in men. – Studies supporting the claim