The future of diabetes in America looks bleak, according to a new Centers for Disease Control and Prevention report out today, with cases projected to double, even triple, by 2050.

According to the report, one in 10 U.S. adults have diabetes now. The prevalence is expected to rise sharply over the next 40 years with as many as one in three having the disease, primarily type 2 diabetes, according to the report, published in the journal Population Health Metrics.