Study analysis · Nutrients · 2017
Cheese won't kill you—here's the science that surprised even nutrition experts.
Eating up to 1.5 ounces of cheese every day doesn't make you more or less likely to die, no matter how much you eat.
Overview
What the study found
The study in plain English — the bottom line, every takeaway we extracted, and what to do with them.
In simple terms
This study looked at lots of people who ate different amounts of cheese over many years and saw if they lived longer or shorter lives. It found no clear pattern — cheese eaters didn’t die more or less than others. But it didn’t make people change their cheese habits, so we can’t say cheese caused the outcome.
What’s the bottom line?
Scientists looked at many studies about people who ate cheese over many years to see if it affected how long they lived.
How strong is this study?
This study did a really good job by combining data from nine other solid studies and checking for mistakes like bias or errors. But since it relied on people remembering what they ate, and other lifestyle factors could have influenced results, we still can’t be 100% sure. That’s why we need to be careful not to say cheese 'causes' anything.
40 / 100
- COI disclosure+40/40
- Data availabilitydata not shared
- Code availabilitycode not shared
13 / 100
- Randomizationnot randomized
- Blindingblinding unclear
- Control groupno control group
- Sample sizeno sample size reported
- Follow-up+10/10
100 / 100
77 / 100
- P-values+15/15
- Effect size+20/20
- Confidence intervals+15/15
- Pre-registrationnot pre-registered
Each component is scored out of 100 and then capped by the study design — a case series cannot reach the ceiling a randomised trial can, however well it is reported.
Where it sits
RCT reviewsReviews of RCTs (Meta-analyses)
Max 100Randomized TrialsRandomized Trials
Max 90Reviews of Cohort StudiesReviews of Cohort Studies
Max 85Cohort StudiesCohort Studies
Max 72Reviews of Case-Control StudiesReviews of Case-Control Studies
Max 63Case-Control StudiesCase-Control Studies
Max 58Cross-Sectional & Case SeriesCross-Sectional & Case Series
Max 50Expert OpinionExpert Opinion
Max 552 / 100
Probability of being correct
Systematic reviews and meta-analyses of cohort studies. They sit above a single cohort study but below a single randomized trial, because the underlying evidence is still observational.
This design cannot establish causation — the findings describe an association, not a cause. This is a meta-analysis of observational cohort studies, which cannot control for all confounding factors like lifestyle, genetics, or other dietary habits. Observational studies can show associations but cannot prove that cheese directly causes changes in mortality.
No Conflicts
No conflicts of interest identified
No conflicts of interest or funding disclosures were reported in the study. The analysis appears methodologically rigorous and independent.
Independent Analysis Safeguards
- Two authors independently conducted literature search and data extraction
- Discrepancies resolved by third reviewer
- Use of predefined protocol and MOOSE guidelines
- Sensitivity analysis performed by omitting one study at a time
- Publication bias assessed using Egger’s and Begg’s tests
The study lacks any declaration of funding sources or conflicts of interest, which is a limitation in transparency. However, the methodology is robust, with independent dual review processes and statistical safeguards, reducing the likelihood of bias. No industry ties or affiliations are disclosed or implied.
Key takeaways
- 01
People who ate up to 43 grams of cheese a day (about 1.5 ounces) had the same risk of dying as those who ate little or no cheese.
- 02
This means eating cheese daily, even at moderate amounts, doesn't seem to make you more or less likely to die from any cause.
Surprising findings
- No dose-response relationship: eating more cheese (up to 43g/day) didn't increase death risk.Most people assume more of a 'bad' food = worse outcome, but here, doubling or tripling cheese intake had no measurable effect on mortality.
- The null result held across sex, age, geography, and baseline disease status.Most dietary links vary by population—but cheese’s neutrality was consistent from Australia to the U.S., young to old, healthy to chronically ill.
Practical takeaways
Enjoy 1.5 ounces (43g) of cheese daily without guilt—it won't shorten your life.
This doesn't mean cheese is healthy—it just doesn't kill. If you have high blood pressure or cholesterol, monitor sodium intake.
medium confidenceWhy this study matters
Cheese Doesn't Shorten Your Life
A meta-analysis of 177,655 people over 5–15 years found no link between cheese consumption and all-cause mortality. The relative risk for the highest vs. lowest intake was 1.02 (95% CI: 0.97–1.06)—meaning zero meaningful difference.
People assume high-fat foods like cheese are deadly, but this study shows the net effect on lifespan is neutral—even with saturated fat and sodium.
The 10-Year Mystery
Studies with less than 10 years of follow-up showed a 59% higher mortality risk with high cheese intake (RR = 1.59), but this vanished in longer studies (RR = 1.01). Researchers suspect sick people ate more cheese for nutrition, skewing short-term data.
It flips the script: cheese might not be harmful—it could be a sign people were already unwell. This reveals how study duration changes everything.
Why Cheese Defies Logic
Despite being high in saturated fat and sodium—both linked to heart disease—cheese doesn't raise death risk. The study suggests calcium, whey protein, vitamin K2, and fermentation may neutralize the harms.
It challenges the idea that 'bad nutrients = bad food.' Cheese proves food matrices matter more than isolated nutrients.
Want the whole report?
Detailed mode opens the full scientific breakdown — every score component, the methodology, conflicts of interest, the evidence analysis behind each claim, and the raw study data.
Standing
Who’s using this study?
The videos and claims on this site that lean on this study, and the researchers who wrote it.
1 video from Physionic cite this study, drawing 5 claims from it.
- Contradicted
Evidence contradicts this claim.
Evidence - Very strong evidence
Randomized or controlled trials support this claim, alongside consistent supporting evidence.
Evidence - Contradicted
Evidence contradicts this claim.
Evidence - Very strong evidence
Randomized or controlled trials support this claim, alongside consistent supporting evidence.
Evidence - Conflicting evidence
Evidence points in both directions — no clear conclusion yet.
Evidence