Obesity is intricately linked with poor heart health, and losing excess weight can blunt the risk of cardiovascular concerns. But the analysis, published on Wednesday in The Lancet, found that a shrinking waist size — a measure of shedding belly fat — was responsible for only around a third of the observed cardiovascular benefits in people who took Wegovy. In their first 20 weeks of taking the drug, patients experienced cardiovascular benefits no matter how much weight they lost.