They can enter diabetic shock, and eventually die because of lack of sugar to cells.
since the amount of glucose in the blood rises so high, it can damage every system and cell in your body
13.2
If not treated the person can die and infect others as well.
Diabetes, if untreated.
kidneys, eyes
Yeah mate, Yeah it can! oriet bud is that all!
You can die
you explode
Similar to a person with untreated diabetes, a cat will urinate a lot, be extremely thirsty, be tired or lethargic, and lose weight fast. Diabetes in cats is extremely treatable with insulin shots and a changed diet, so find an experienced vet! There's a large and active feline diabetes community that can best help your cat return to normal. See the attached links.
chronic renal failure
It depends on what and how debilitating it is
The person will either live or die. As you have not stated how bad the poisoning is there is no way to tell. There is a middle ground where sever damage can occur to the person but this is rare.
Generally, a person will produce between 10-20 liters of diarrhea and vomit per day until death from dehydration.