One of the most significant problems people with bipolar disorder grapple with is weight gain. Many researchers suggest that this is due largely to the impact of medications commonly being prescribed for bipolar disorder. However, recently published research suggests that the whole picture is a bit more complicated than laying blame on the medications alone.

First, it helps to start off by understanding America’s overall weight problem. Nearly two-thirds of all Americans are overweight and one-third of us are considered obese. America is fat - there’s simply no easy or other way to say it. So if you’re packing a few extra pounds, you’re in the norm for America today.

But research results to-date have been decidedly mixed about whether bipolar disorder causes significant weight gain, or whether weight is more of a general population issue that can be magnified by the presence of bipolar disorder. The researchers note one study that found that 68% of people seeking treatment for bipolar disorder presented as overweight or obese. Another study found that newly-diagnosed bipolar patients were within normal weight range, noting that weight gain only occurred after diagnosis and treatment.

Research shows that 35% of people with bipolar disorder are obese, the highest percentage of any psychiatric illness. They also reviewed previous research which suggested factors that may be contributing to this problem: gender, geographical location, co-existing binge eating disorder, co-existing bulimia nervosa, higher numbers of depressive episodes, treatment with medications that cause weight gain, high carbohydrate consumption, and physical inactivity. They also point to research which suggests that eating disorders and mood disorders may congregate in families.

Additional theories about the increased weight risk associated with bipolar disorder include a childhood history of neglect or abuse, which is reported in 36% to 49% of people with bipolar disorder. Such abuse or neglect is also highly associated with eating concerns, according to the researchers. Alcohol abuse and smoking are also singled out as possible factors, both occurring with increased prevalence within people who have bipolar disorder than those without.

Last, the authors point out that people with bipolar disorder often have lower income levels, fewer years of education and may have poor social support. These factors may also contribute to making poor diet choices and developing unhealthy eating habits.