A new study suggests that popular weight loss drugs may also have unexpected mental health benefits. Researchers found that people using GLP-1 medications showed lower rates of depression, anxiety, and substance use problems.

The study analyzed data from nearly 100,000 people in Sweden over several years. Researchers compared periods when patients were taking GLP-1 drugs with periods when they were not taking them.

The results showed that people using these medications were less likely to need psychiatric hospital care or take time off work due to mental health issues. The study also found lower rates of depression and anxiety among people taking the drugs.

Researchers believe there could be several reasons for this. Weight loss, improved blood sugar levels, and changes in how the brain processes reward and cravings may all play a role in improving mood and mental health.

Some experts also believe the drugs may affect brain pathways related to addiction and impulse control, which could explain why substance use problems were also lower among users.

However, researchers warned that the study does not prove the drugs directly treat mental health conditions. More research is needed to understand exactly how the medications affect the brain and mood.

GLP-1 drugs such as semaglutide are commonly used for diabetes and weight loss, and their popularity has grown rapidly in recent years.

While the findings are promising, doctors say the medications should only be used under medical supervision and should not be considered a treatment for depression or anxiety on their own.