Systematic reviewindependent cross-checkabstract only checked I-DRY-19 standard review
52 trials: dairy anti-inflammatory except in milk allergy
Dairy products and inflammation: A review of the clinical evidence.
Overview
Bordoni A et al.. Crit Rev Food Sci Nutr 2017 · PMID 26287637 · DOI 10.1080/10408398.2014.967385
Overall anti-inflammatory score; pro-inflammatory only in allergic people.
Does the study support the specific claim? No · Methodological quality: moderate
Plain-language summary
Study explained simply
- What did the researchers want to find out?
Dairy and inflammation.
- How was the study done?
Systematic review.
- How many people, animals or samples were studied?
52 trials.
- What was actually found?
Anti-inflammatory overall.
- How large was the observed effect?
Score only.
- What do the results mean in everyday life?
Allergy is the exception.
- What are the study's limitations?
Scoring method.
- What does it say about Elawady's specific claim?
Contradicts the general claim.
- Do the results apply to Germany and Europe?
Moderate.
- What can explicitly not be concluded from this study?
Precise effect sizes.
Scientific in-depth review
1. Full reference
- Authors
- Bordoni A et al.
- Journal
- Crit Rev Food Sci Nutr
- Year
- 2017
- Identifier
- PMID 26287637 DOI 10.1080/10408398.2014.967385
- Verification
- verified – PubMed efetch 2026-10-25
- Retracted
- no
- Corrections
- none
- Extent checked
- abstract only
- Conflicts of interest and funding
not stated in abstract
2. Research question
Do dairy products modulate inflammation in humans?
3. Study design and population
- Study design
- Systematic review – Systematic review of 52 clinical trials with an inflammatory score.
- Population
Participants of 52 trials
- Country
Multinational
- Period
Not stated
- Sample size
52 trials
- Inclusion and exclusion criteria
Clinical trials measuring inflammatory markers with dairy.
4. Methods and endpoints
- Exposure / intervention
Dairy (low/high-fat, fermented)
- Comparator
Various
- Endpoints
Inflammatory markers (score).
- Statistical methods
Inflammatory score.
5. Actual results
- Results
Overall anti-inflammatory activity; strongly anti-inflammatory in subjects with metabolic disorders; pro-inflammatory in subjects allergic to bovine milk; low-fat, high-fat and fermented products associated with anti-inflammatory activity.
- Absolute risks
not applicable
- Authors' conclusion
Dairy shows anti-inflammatory activity in humans except in milk allergy; bioavailability gaps remain.
6. Strengths
- Large number of trials
7. Weaknesses
- Ad hoc scoring method
- Heterogeneous trials
8. Risk of bias
- Orienting tool
- ROBIS
- Type of assessment
- simplified assessment (abstract only)
- Full formal assessment
- no
- Overall risk of bias
- some concerns
- Rationale
Non-standard synthesis.
9. Assessment of the statistical interpretation
Score-based, not effect sizes.
10. Relevance to the specific claim
Contradicts C-DRY-02; limits C-DRY-10 (allergy not avoided by cheese).
11. Independent contrary findings
n/a
12. Transferability to Germany and Europe
Moderate.
13. Overall methodological judgement
Dairy is not pro-inflammatory except in allergy.
| Multidimensional assessment | |
|---|---|
| Authenticity of the source | verified |
| Methodological quality | moderate |
| Risk of bias | some concerns |
| Precision of results | not applicable |
| 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
Standardised effect sizes.
15. Linked fact checks
- Dairy products harm health and cause inflammation. – Studies contradicting or limiting the claim
- Cooked/processed and aged cheese is the more digestible form of dairy because bacteria have already worked on it; it is fattier, softer, less allergenic and less stimulating to the immune system than milk, yogurt and casein-rich fresh products. – Studies contradicting or limiting the claim