The Study
Healthful and Unhealthful Plant-Based Diets and the Risk of Coronary Heart Disease in U.S. Adults.
This study found that people who ate more healthy plants like whole grains and veggies tended to have fewer heart problems, and those who ate more sugary snacks and refined carbs had more heart problems. But it doesn’t prove that eating those foods caused the heart problems — maybe people who eat healthy plants also exercise more or smoke less.
Analysis score
Maximum 72 for a cohort study.
Where the score came from
Eating healthy plants like whole grains, fruits, and nuts helps your heart, but eating unhealthy plants like sugary drinks and white bread can hurt it — even if you avoid meat.
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 559 / 100
Quality score
Groups of people are followed over time to see who develops an outcome. Strong for identifying risk factors and associations, but cannot prove causation as firmly as RCTs.
Key takeaways
Summary
Based on the study abstract and findings.
- 1Yes — a 25% lower risk means about 1 in 4 fewer heart attacks over time, which is a big difference for public health.
- 2Healthy plant eaters had 25% less heart disease.
- 3Unhealthy plant eaters had 32% more heart disease.
- 4Just eating any plants instead of meat only lowered risk by 8%.
Score breakdown, methodology, conflicts of interest, evidence analysis & raw study data
Publication
Journal
Journal of the American College of Cardiology
Year
2017
Authors
A. Satija, S. Bhupathiraju, D. Spiegelman, Stephanie E. Chiuve, J. Manson, W. Willett, K. Rexrode, E. Rimm, F. Hu
Related Content
Claims (10)
Eating more plants and whole grains instead of meat and sugary refined foods matters more for preventing heart disease than just how much fat or carbs you eat.
Eating mostly whole plant foods like vegetables, fruits, and whole grains is better at preventing heart disease than worrying about whether you eat more fat or more carbs.
If you eat a lot of plant-based foods like white bread, soda, fries, and candy instead of healthy plants like vegetables and whole grains, you might be more likely to get heart disease—even if you don’t eat any meat. It’s not just about avoiding animal products; what kind of plants you eat matters.
Eating more plants instead of animal foods might slightly lower your risk of heart disease, but only if those plants are healthy—like vegetables and whole grains—not junk food like soda or fries.
People who eat lots of healthy plant foods like whole grains, fruits, nuts, and veggies over a long time have a 25% lower chance of getting heart disease than those who don’t eat as many of these foods—so what you eat within a plant-based diet really matters for your heart.
Eating more healthy plant-based foods like vegetables, fruits, and beans is linked to a lower risk of heart disease—even when you account for common health problems like high blood pressure, diabetes, and high cholesterol. This suggests these foods protect your heart in ways that go beyond just fixing those common issues.
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.