Here are a few excerpts from a website on Ketosis.
Problems associated with extreme levels of ketosis are more likely to develop in patients with type 1 diabetes compared with type 2 diabetes patients.
If there is not enough glucose available to meet energy demands, the body will adopt an alternative strategy in order to meet those demands. Specifically, the body begins to break down fat stores to provide glucose from triglycerides. Ketones are a by-product of this process.
Ketones are acids that build up in the blood and are eliminated in urine. In small amounts, they serve to indicate that the body is breaking down fat, but high levels of ketones can poison the body, leading to a process called ketoacidosis.
Ketosis describes the metabolic state whereby the body converts fat stores into energy, releasing ketones in the process.
Patients with diabetes who follow a ketogenic diet need to carefully monitor their ketone levels. A serious condition called ketoacidosis can occur if these levels get too high, and although it is most prevalent in individuals with type 1 diabetes, people with type 2 diabetes can still develop ketoacidosis.
Here is the link to the website
http://www.medicalnewstoday.com/articles/180858.php
Hope this helps to explain it a bit better.
hugs
Karra