Research
Hormonal
Increased BMI causally increases the risk of coronary artery disease and heart failure, independent of traditional risk factors like blood pressure and diabetes, though these factors mediate a significant portion of the risk.
High body weight directly harms the heart, even if your blood pressure and cholesterol are managed with medication. This is because excess fat tissue itself causes inflammation and stress on the cardiovascular system. Losing weight reduces this independent risk, protecting your heart beyond just improving numbers like blood pressure.
StrongSupportsHIGH confidence
Mendelian randomization (MR) studies can be used to infer causal associations between an exposure and outcome and have suggested that increased BMI causally increases the risk of type 2 diabetes (T2D), dyslipidemia, hypertension, coronary artery disease, and heart failure.
Why this rating
Based on Mendelian randomization studies which are less prone to confounding than observational data.
Source
Obesity and Cardiometabolic Disease: Insights From Genetic Studies
Satya Dash · Canadian Journal of Cardiology · 2025
narrative_reviewCited 7×
Read the paper This is one finding among thousands. Every one is graded and traced to its source, so you can see what the evidence actually supports. Browse the research →