type 1 diabetes - beta cells (which create insuling) in the pancreas get destroyed by autoimmune disease) type 2 diabetes - cells that hold glucose are resista

type 1 diabetes - beta cells (which create insuling) in the pancreas get destroyed by autoimmune disease) type 2 diabetes - cells that hold glucose are resistant to insulin produced by the body. As in, Sugar almost certainly doesn't cause type 2 diabetes but causes the symptoms to surface because of the inability to remove the excess glucose from the cells.