Type 1 diabetes mellitus is an autoimmune disease. As well as T1D, latent autoimmune diabetes in adults is also included in autoimmune diabetes. Latent autoimmune diabetes in adults (LADA) is similar to and is frequently confused with type 2 diabetes. But LADA is distinguished by the presence of autoantibodies, mainly glutamic acid decarboxylase autoantibodies. LADA patients usually become insulin-dependent at much faster rates in contrast to classic type 2 diabetes. Sandeep Kumar Gupta at Sanofi discusses why LADA has been put as a distinct entity and type of diabetes by some; others believe that LADA is just a mild variant of T1D and should be treated as such.