Exercise Cuts Artery Thickness 7% in 130 Adults With Obesity as Liraglutide Alone Fails
Updated
Updated · Nature.com · Jun 24
Exercise Cuts Artery Thickness 7% in 130 Adults With Obesity as Liraglutide Alone Fails
3 articles · Updated · Nature.com · Jun 24
Summary
A 52-week S-LiTE trial analysis found exercise after diet-led weight loss reduced carotid intima-media thickness by 7%, while exercise plus liraglutide cut it 6%; liraglutide alone showed no vascular gain.
Among 130 adults without diabetes, exercise also lowered inflammatory markers—IL-6 fell 26% and IFNγ 45% versus placebo—suggesting benefits beyond weight maintenance alone.
The combination arm added endothelial improvements, reducing sICAM-1 by 13%, sVCAM-1 by 15% and tPA by 16%, effects not seen with liraglutide by itself.
Participants had first lost an average 13.7 kg over 8 weeks, and the authors said the findings point to regular physical activity as the key driver of vascular health during obesity treatment.
Why does exercise heal blood vessels when a powerful weight-loss drug can't? The secret may be cellular.
Can new weight-loss drugs improve artery health alone? This study delivers a surprising verdict.
Exercise Outperforms Liraglutide Alone for Vascular Health: S-LiTE Trial Shows 6–7% cIMT Reduction and Major Cardiovascular Risk Drop
Overview
The S-LiTE trial, published in June 2026, shows that regular exercise plays a crucial role in improving vascular health for adults with obesity after initial weight loss. The study found that exercise alone led to a 7% reduction in carotid intima-media thickness (cIMT), while combining exercise with liraglutide resulted in a 6% reduction. In contrast, liraglutide alone or placebo did not provide this benefit. These results highlight that the main improvement in vascular health comes from physical activity, making exercise essential for reducing cardiovascular risk after weight loss.