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GLP-1 Drugs and Mental Health

Emerging research suggests that GLP-1s could have positive impacts on mental health, like decreased anxiety and depression. However, negative impacts, like sleep disorders and increased stress, are also being reported.

Do GLP-1s Affect Mental Health?

Researchers are increasingly interested in the effects of GLP-1 drugs on mental health, beyond their established roles in metabolic health. Emerging research is exploring the connection between GLP-1 receptor agonists and mood, raising questions about their broader implications for mental well-being.

A 2024 review in Current Treatment Options in Psychiatry found that GLP-1 drugs have potential beneficial effects on depression symptoms and cognitive function and may even decrease suicidal thoughts. However, they recommended caution, as these medications may also cause adverse psychiatric side effects in some.

Potential Mental Health Benefits of GLP-1 Drugs

GLP-1 drugs have potential mental health benefits. Some of these benefits may be related to increased hope for weight loss and a positive effect on body image, but there may be additional benefits as well.

Quieting Food Noise

One way GLP-1 drugs affect the brain and promote weight loss is by quieting food-related noise. A 2025 study in Diabetes, Obesity, and Metabolism found that participants reported improvements in food-related thoughts, feelings of fullness, and overall healthier eating behaviors. GLP-1 is produced in both the gut and the brain. These medications may reduce binge eating disorders or even have a role in treating substance use disorders.

Reduced Depression and Anxiety

The research on how GLP-1 drugs may benefit depression is mixed; however, some studies have shown a decrease in depressive symptoms for people on GLP-1 drugs. While studies have not explicitly addressed whether GLP-1 drugs directly affect depression symptoms in humans, animal studies have measured decreased depression and anxiety. Additionally, decreases in depression and anxiety scoring tools have been seen in people who are on GLP-1 drugs.

Potential Mental Health Risks of GLP-1 Drugs

Though many patients benefit, it’s important to consider the GLP-1 drugs’ side effects on mental health, especially in vulnerable populations. Some studies have shown worsening of mental health conditions.

A 2024 study in Frontiers of Endocrinology showed a significant relationship between GLP-1 drugs and several mental health-related adverse events:

Other concerns regarding mental health and GLP-1 drugs include questions about impacts on neurotransmitters and whether the same effects that decrease food noise may decrease enjoyment of different activities.

Ultimately, while these medications have many potential benefits, they should be used with caution in people with underlying mental health conditions, and the potential side effects should be considered.

Can GLP-1 Drugs Cause Suicidal Ideation?

There is some evidence that GLP-1 drugs may be associated with increased suicidal thoughts in certain patients. This risk seems to be highest in young people and women. Most of the concerns regarding suicidal thoughts and GLP-1 drugs come from databases that track adverse events in medications after they have been approved and released on the market.

The Food and Drug Administration (FDA) has announced that it is continuing to evaluate the concerns about suicidal thoughts in people on GLP-1 drugs, and they recommend against stopping GLP-1 medications without talking to your doctor. The FDA also encourages healthcare providers and patients to report any adverse effects from GLP-1 and other medications.

How Do GLP-1 Drugs Affect the Brain?

As previously mentioned, GLP-1 receptors are found in the brain as well as the gut. GLP-1 drugs work in the brain by affecting the brain’s reward system. These drugs can affect the release of certain neurotransmitters, such as dopamine. This can decrease food cravings and may also have future benefits for alcohol and substance use disorders.

How Do GLP-1 Drugs Affect People With Psychiatric Disorders?

It may be hard to predict how GLP-1 drugs will affect people who have a psychiatric disorder. Some people may experience benefits in their mental health conditions, including depression and anxiety. Other people may experience a worsening of their overall mental health.

If you have an existing mental health condition, it is essential to talk with your doctor about your condition and any medications you may be taking before starting GLP-1 medicines.

What Should You Ask Your Doctor Before Starting GLP-1s?

GLP-1 drugs are changing the landscape of diabetes and obesity management, but they may also have implications for mental health. The exact relationship between GLP-1 drugs and mental health is still being studied, but some mental health professionals are hopeful that these drugs may have benefits beyond their current metabolic uses.

Before starting any medication, you should talk to your doctor about the side effects. GLP-1s are no exception. If you’re considering starting a GLP-1 medication for diabetes or weight loss, you should ask your doctor about the potential side effects of the drug, including how it may impact your mental health. This is especially true if you have a history of a mental health condition such as depression, anxiety, or eating disorders.

If you have a history of mental health conditions, you should also consider talking to your doctor about a plan if you develop worsening depression, anxiety, or suicidal thoughts. It’s also important to ask about any interactions between your current mental health medications and the GLP-1 drug.

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