A new study highlights how vital a balanced lifestyle is for people with type 2 diabetes, even when they are using powerful medications like glucagon-like peptide-1 (GLP-1) receptor agonists. This research shows that combining these medications with healthy habits can significantly lower heart health risks.
In the study, patients who followed not just the medicine, but also maintained a high-quality diet, exercised regularly, and got enough sleep, saw a much greater drop in serious heart issues. Senior researcher Frank B. Hu from Harvard noted that those adhering to six or more healthy habits experienced a 43% reduction in cardiovascular risks. In contrast, using GLP-1s alone only reduced this risk by 16%. This indicates that lifestyle changes can greatly enhance the heart health benefits of GLP-1 medications.
Published in Lancet Diabetes & Endocrinology, the study examined data from 98,261 U.S. veterans with type 2 diabetes who participated in a long-term program from 2011 to 2023. While earlier research had looked into the effects of GLP-1s, Hu pointed out that few studies focused on how dietary and lifestyle changes work alongside these medications.
This research gathered rich data, including surveys on eating habits, exercise levels, sleep, and mental well-being. Healthy lifestyle scores were based on eight habits, with a strong diet defined by a plant-based focus and active living measured in intensity and frequency.
During the follow-up period, over 10,000 participants faced serious heart issues, but taking GLP-1s resulted in a significant risk reduction. Moreover, those who embraced lifestyle changes saw a clear “dose-response” relationship: more healthy habits led to lower risk levels. For example, those adopting four to six healthy habits had 27% to 42% lower risks compared to those sticking to one or none.
However, the study did show that few managed to maintain all eight habits—only about 1% of participants achieved that. Despite this, those who merged GLP-1 use with healthy lifestyles had a substantial drop in risks for major cardiovascular events.
As Hu pointed out, medications alone aren’t a miracle solution. While they play a role in managing diabetes, combining them with healthy living can increase their effectiveness. He explained that a good diet and exercise not only support heart health but also minimize potential side effects from medications, such as muscle loss.
Experts like Stefano Del Prato and Anna Solini from the University of Pisa emphasized that the positive effects of lifestyle changes may be underestimated. Participants reported their habits only at the start, and consistent lifestyle maintenance could yield even better results.
In light of these findings, it’s clear that focusing on healthy living is essential for anyone dealing with type 2 diabetes. This study serves as a powerful reminder that a comprehensive approach—merging medication with lifestyle choices—yields the best heart health outcomes.
For more insights on the impact of lifestyle on heart health, you can explore resources from the American Heart Association.

