Difference between Ketosis and Ketoacidosis

Ketone bodies are acids made when your body begins using fat instead of carbohydrates for energy.
Ketosis is sometimes referred to as the body's "fat burning" mode.
There is a difference between Ketosis and Diabetic Ketoacidosis.
Diabetic Ketoacidosis
Ketones build up in the blood and urine as fats and are broken down for energy due to  LOW LEVELS OF INSULIN!!!!! 
In high levels, ketones can be very dangerous and even poisonous. This serious condition is known as ketoacidosis and, if left untreated, can lead to diabetic coma or even death. The symptoms of ketoacidosis can be confused with others (such as the flu or a stomach virus), so be sure to talk to your doctor about a plan for when to test for ketones.