Dr. Robert Elliot, Professor of Child Health Research at University of Auckland Medical School is testing 40,000 five-year old children for the presence of specific antibodies that indicate diabetes will develop. Those who have the antibodies will be given nicotinamide. This will prevent the development of diabetes in most the children who are vulnerable. According to the Rotarian for March 1993 this project began 1987 and has 3200 relatives in the study. Of these, 182 had antibodies and 76 were given nicotinamide. Only 5 have become diabetic compared to 37 that would have been expected. Since 1988 over 20,100 school children have been tested. None have become diabetic compared to 47 from the untested comparable group. A similar study is underway in London, Ontario.
In https://www.ncbi.nlm.nih.gov/pubmed/16723091 the study results suggest that even low doses of oral nicotinamide (1-2 mg/kg) given to children with newly diagnosed type 1 diabetes may reduce insulin requirements.