A recent study suggests that weight loss injections may reduce the risk of heart attack or stroke independent of the amount of weight shed. Researchers found that targeting belly fat is crucial for enhancing heart health, as opposed to overall weight loss, which could involve muscle loss. The study, published in The Lancet, challenges the current practice by the NHS of limiting appetite-suppressing treatments to severely obese individuals.
Professor John Deanfield, the lead author from University College London, emphasized the dangers of abdominal fat on cardiovascular health, highlighting the significance of reducing waist size for heart benefits. The study focused on 17,604 individuals using the drug semaglutide for obesity or diabetes, showing a decreased risk of major adverse cardiac events irrespective of weight loss.
Notably, the study revealed that individuals with varying body mass index (BMI) scores experienced similar heart benefits, indicating that weight loss is not a prerequisite for cardiovascular improvement. Waist circumference reduction was found to mediate a significant portion of the observed cardiovascular benefits.
Prof. Deanfield stressed the need to reconsider the use of semaglutide in clinical settings, suggesting that cardiovascular benefits can be achieved without substantial weight loss or high BMIs. While acknowledging the benefits, he also highlighted the importance of monitoring potential side effects, especially considering the diverse population that could benefit from such medications.
The NHS in England plans to administer weight loss injections to 240,000 individuals, starting with those with the highest need. Experts like Prof. Tim Chico and Dr. Sonya Babu-Narayan advocate for the broader use of drugs like semaglutide in heart disease management, underscoring the multifaceted benefits beyond weight loss alone. Further research is needed to understand the additional mechanisms responsible for the cardiovascular advantages of such medications. It is also emphasized that medication should complement a healthy lifestyle inclusive of physical activity and a balanced diet for long-term heart health.