There are two types of diabetes: Type 1 and Type 2. These are similar but have different causes. Type 1 is due to a total lack of insulin, whereas type 2 is due to an inability to use insulin properly or having too little insulin.
Previously called juvenile-onset or insulin-dependent diabetes, type 1 diabetes accounts for less than 10% of those with diabetes. As mentioned, those who have type 1 diabetes have an inability to make insulin. This is because the body’s immune system destroys the insulin-releasing cells, preventing them from making insulin. However, insulin is needed for the cells to absorb glucose from the blood and make energy that the cells need to function properly.