The Study
Dose-dependent effect on serum cholesterol and apoprotein B concentrations by consumption of boiled, non-filtered coffee.
This study noticed that people who drank more boiled coffee tended to have higher cholesterol, but it didn't randomly assign people to drink it or control other habits. So it just shows a pattern, not proof that coffee causes the change.
Analysis score
Maximum 44 for a cross-sectional study.
Where the score came from
Drinking coffee that wasn't filtered through paper may make your bad cholesterol go up, and the more you drink, the higher it goes.
Where does this study sit?
Reviews of RCTs (Meta-analyses)
Max 100Randomized Trials
Max 90Reviews of Cohort Studies
Max 85Cohort Studies
Max 72Reviews of Case-Control Studies
Max 63Case-Control Studies
Max 58Cross-Sectional & Case Series
Max 50Expert Opinion
Max 520 / 100
Quality score
Snapshots of a population at a single point in time, or descriptions of small groups. Can identify correlations and prevalence, but cannot determine cause and effect.
Key takeaways
Summary
Based on the study abstract and findings.
- 1Higher LDL and apoprotein B are linked to increased heart disease risk, so this could matter for long-term health.
- 2Not specified
Score breakdown, methodology, conflicts of interest, evidence analysis & raw study data
Publication
Related Content
Claims (2)
People who drink unfiltered coffee have higher LDL cholesterol levels than people who drink filtered coffee.
Drinking boiled coffee increases levels of total cholesterol, LDL cholesterol, and apoprotein B in the blood in proportion to how much is consumed.
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.