Rice won't cause you to have diabetes unless you're fat generally speaking or unless you already have diabetes type 1.. the most common type of diabetes is really diabetes 2.. you get diabetes 2 when you are obese and at the same time you eat high glycemic index foods.. As far as what kind of foods will cause you to become obese, rice is probably not on the top of the list because it's a low energy density food... Problem is once you become obese and and you thereby get insulin resistance, if you eat rice then your blood sugar will go up and that's called diabetes..

So the problem is eating rice if you're fat, but if you're skinny eating rice is not going to make you fat not generally unless you eat a lot because rice is a low energy density food relatively speaking