A comprehensive study of 2 million veterans reveals both risks and surprising benefits of popular weight-loss medications like Ozempic and Wegovy.
Popular weight-loss drugs like semaglutides (Ozempic and Wegovy) may help protect against over 40 conditions, including Alzheimer’s disease, drug addiction, and seizures, a new review has found.
However, researchers warn that these benefits come with an increased risk of 19 health conditions, such as syncope (fainting), arthritic disorders, and kidney and pancreatic problems.
In a study published in Nature Medicine on Jan. 20, researchers from Washington University’s WashU Medicine in St. Louis systematically evaluated health outcomes among roughly 2 million veterans with diabetes who were taking the popular weight-loss medications known as glucagon-like peptide-1 receptor agonists (GLP-1RAs) for about 3.5 years.
The media, patients, and even some doctors have dubbed the medications “miracle drugs” due to their profound weight-loss effects.
Administered weekly via injection, GLP-1RAs simulate naturally produced hormones that suppress appetite and slow digestion, allowing people to feel full longer. However, data on these medications’ comprehensive effects across the body’s organ systems have been sparse.
Health Benefits and Risks
Disorders affecting the heart, blood vessels, liver, and respiratory system (such as pneumonia) were among the risks GLP-1RA use reduced the most.
Studies have shown that GLP-1RAs may improve the health of cells lining the blood vessels. Improved endothelial function can lead to better regulation of blood flow and reduced platelet clumping, which could lower the risk of coagulation disorders and cardiovascular events.
The research team also found that GLP-1RAs were linked to improved neurological and behavioral health outcomes. There was a reduced risk of seizures and addiction to substances such as alcohol, cannabis, stimulants, and opioids. This may be linked to how the drug affects neurological pathways related to reward and impulse control.
Additionally, findings indicated a reduction in the risk of schizophrenia and suicidal thoughts, although it remains unknown why this is so.
The study noted fewer instances of liver cancer, muscle pain, chronic kidney disease, bacterial infections, and fever. The risk of cognitive disorders such as Alzheimer’s disease and dementia also decreased with GLP-1RA use.
