Type 1 diabetes (T1D) is an autoimmune disease in which the body's immune system attacks and destroys the insulin-producing cells of the pancreas. 

JDRF is the leading global organization focused on T1D research. Driven by passionate, grassroots volunteers connected to children, adolescents, and adults with this disease, JDRF is the largest charitable supporter of T1D research. The goal of JDRF is to improve the lives of every person affected by T1D by accelerating progress on the most promising opportunities for curing, better treating, and preventing T1D. More than 80 percent of JDRF's expenditures directly support research and research-related education.