I did not know that. I'm not giving her any insulin and I'm not sure how I would do that. I also have the "sugar" and I've been losing weight too. I see that I'll need to do some research and find a way to better care for her. If she wasn't so darn skinny, you would swear that she is a normal, healthy kitten. She is certainly the boss here, Even the puppy won't test her. And when he naps on the couch, she will often cuddle in and sleep with him. My dogs and cats put the "fur" in furniture.If she has diabetes, her weight loss is due to not enough Insulin (not producing enough, or not enough if you are giving it), leading to inability to utilize what she eats for fuel. No matter what is fed, if there is not enough insulin she will literally waste away. So sorry! Give her the best quality food you can afford (Purina DM would be a good choice), and enjoy her while you have her.