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Weight-Loss Drugs Linked to Mental Health Issues
9 Sep
Summary
- Weight-loss drug users had higher rates of depression and suicidal thoughts.
- Associations were stronger for users who gained weight on medication.
- Study cannot prove causation, only correlation between drug use and mental health symptoms.

A recent observational study in South Korea revealed a correlation between the use of prescription weight-loss medications and increased rates of depression, suicidal thoughts, and mental health counseling among adults.
The research involved over 27,000 participants, with those using weight-control drugs showing significantly higher likelihoods of experiencing these mental health challenges. Notably, the associations were more pronounced in individuals who gained or regained weight while taking the medications.
Experts caution that the study, conducted between 2013 and 2022, highlights a correlation, not causation. The mental health symptoms could be influenced by factors such as the drug's effects, psychological responses to perceived weight control failure, or pre-existing conditions common in individuals with severe obesity.
While older weight-loss agents were primarily studied, modern drug labels for weight management drugs include warnings for mood changes. Healthcare providers are advised to conduct baseline mental health assessments and monitor patients for mood shifts during treatment. Immediate medical care is recommended for active suicidal thoughts.