The Facts

Mental illness is often treated with psychoactive medications, such as antidepressants. Some antidepressants include possible side effects such as weight gain, according to Hall-Flavin.

Considerations

According to WebMD.com, people with clinical depression may be more likely to gain weight, regardless of whether or not they take medications for the mental illness that include weight gain as a potential side effect.

Research

Researchers published in BMJ Online first concluded that people with mental illnesses are more likely to gain weight in a study that spanned 19 years and thousands of participants.

Expert Insight

Some experts, such as WebMD.com's Dr. Gregory E. Simon believe that it is likely more of a concurrent influence is occurring. According to Simon, obesity likely contributes to feelings of depression and powerlessness. But depression can cause what might be called "comfort eating" to alleviate stress.

Prevention/Solution

People gain weight for different reasons. Some helpful medications may cause weight gain. It is advisable to consult with a mental health counselor or medical doctor before making any drastic changes in diet or medications, according to Hall-Flavin.

Source:

MayoClinic.com: Can Antidepressants Cause Weight Gain?

WebMD.com: Depression, Anxiety Linked to Weight Gain