The Study
Effect of reducing saturated fat intake on cardiovascular disease in adults: an umbrella review
This study looked at lots of other big studies and found that eating less saturated fat probably helps reduce heart attacks and other heart problems — but it doesn’t prove it stops people from dying of heart disease. It’s like saying wearing a helmet probably helps you avoid a head bump while biking, but doesn’t prove it saves your life.
Analysis score
Maximum 100 for a systematic review with meta-analysis.
Where the score came from
Cutting down on saturated fat like butter and cheese might help prevent heart attacks and strokes, but it doesn’t seem to help people live longer or avoid dying from cancer.
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 545 / 100
Quality score
The highest quality evidence. Systematic reviews and meta-analyses that pool randomized controlled trials, giving the most reliable summary of experimental evidence.
Key takeaways
Summary
Based on the study abstract and findings.
- 1The 21% drop in heart events is meaningful for individuals at risk, but since death rates didn’t change, the overall life-saving benefit is unclear.
- 2Heart attacks and strokes went down by 21% with less saturated fat.
- 3Death rates from heart disease, cancer, or overall didn’t change.
- 4Higher saturated fat linked to more heart disease and breast cancer deaths in observational studies, but those studies are unreliable.
Score breakdown, methodology, conflicts of interest, evidence analysis & raw study data
Publication
Journal
Frontiers in Public Health
Year
2024
Authors
Adolfo Aramburu, Gandy Dolores-Maldonado, Katherine Curi-Quinto, Karen Cueva, Giancarlo Alvarado-Gamarra, Katherine Alcalá-Marcos, C. Celis, Claudio F. Lanata
Related Content
Claims (7)
If you eat less saturated fat (like butter or fatty meat) but still eat lots of white bread, sugary snacks, or refined carbs, it probably won’t make your heart any healthier or lower your risk of heart disease.
Cutting back on foods like butter and fatty meats doesn’t seem to make people live longer or die less from heart disease or cancer, according to studies that aren’t super strong.
If adults eat less saturated fat, they’re probably 21% less likely to have a heart attack, stroke, or other heart-related problems — but it doesn’t seem to change how long they live.
People who eat more saturated fat, like butter and fatty meats, seem to die more often from heart disease and breast cancer, but this might just be because other things—like lifestyle or diet—are actually causing the difference, and the science isn’t very strong.
Eating less saturated fat can slightly lower your bad cholesterol, but that doesn’t mean you’ll live longer or have fewer heart problems unless you’re changing other parts of your diet too.
Scientists found a link between eating saturated fat and heart disease by leaving out data from different countries that didn't fit their idea.
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.