Conservative estimates predict that diabetes prevalence will increase 165% between 2000 and 2050.
Boyle, James P., Amanda A. Honeycutt, K.M. Venkat Narayan, Thomas J. Hoerger, Linda S. Geiss, Hong Chen, and Theodore Thompson. Projection of Diabetes Burden Through 2050: Impact of changing demography and disease prevalence in the U.S. Diabetes Care. 2001; 24: 1936-40. http://care.diabetesjournals.org/cgi/content/abstract/24/11/1936