The neighbors in the Great White North are working on a T1 therapy, Islet Neogenesis Associated Protein. Even had the good manners not to mention mice, called it an animal study. Nice Eh!
So put on your tukes and surf over to read about it: http://www.muhc.ca/media/news/?ItemID=29493
Meanwhile there is release from Breaking News on Supplements & Nutrition - Europe that suggest vitamin D (yes D) pills may prevent T1. No mention of cinnamon and in fairness it doesn't claim to be conclusive. http://www.nutraingredients.com/news/ng.asp?n=83924-vitamin-d-type-diabetes-omega