By Gabe Sanders PhD, NSCA-CSCS
Weight loss medications have rapidly changed in recent years, especially with the rise of GLP-1 receptor agonists (GLP-1) based drugs like semaglutide and tirzepatide.
These medications were originally developed to treat Type 2 diabetes, but they are now widely used to support weight loss. As newer versions continue to be developed, researchers are asking whether these next generation drugs may be even more effective than current options.
New therapies and multiple hormone pathways
GLP-1 medications work by mimicking natural hormones that regulate appetite, slow digestion, and improve blood sugar control and therefore help people feel full longer and reduce overall calorie intake. Interestingly, new therapies are beginning to target multiple hormone pathways at once to enhance effectiveness. For example, Tirzepatide works on two hormone pathways, which may make it more effective for weight loss than older medications. In clinical trials, it led to about 20 percent weight loss, compared to around 13 to 15 percent with previous GLP-1s.
While early in the process, researchers are also developing newer medications that go beyond these mechanisms, including drugs that target additional metabolic pathways. The key takeaway is that these medications are powerful tools, but they are not a complete solution on their own. Much of their benefit comes from improving appetite control, blood sugar regulation, and body weight, all of which reduce overall disease risk.
Combining weight loss drugs and lifestyle habits essential
For everyday health, combining these treatments with regular physical activity, strength training to preserve muscle, structured eating habits, and mental health strategies for behavior change is essential. Sustainable results still depend on lifestyle, not just medication, and the most effective approach is one that supports both metabolic and overall health.
Article’s Sources
Boehringer Ingelheim. Topline results from a study evaluating the efficacy of survodutide (BI 456906) in adults with overweight or obesity without type 2 diabetes. Press release. 2024. Accessed May 5, 2026.
Ness-Abramof R, Apovian CM. Diet modification for treatment and prevention of obesity. Nutr Clin Pract. 2008;23(4):397-404. doi:10.1177/0884533608321702
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