My cat was recently diagnosed, too. I also am a believer in homeopathic remedies. After pricing insulin, needles, home testing equipment,etc...and researching feline dietary requirements, I made my decision. Please understand that I love my cat as much as anyone else. But I also need to be able to keep the two of us and her "furry sister" in a home!
I changed their diet to only canned food twice daily. (As opposed to dry food always available.) Then, a week later, I started Mellit. (My vet said it couldn't hurt. I also compared it to a Human homeopath's list of recommended herbal treatments for diabetes, blood sugar regulation, and overall kidney/immune system support--the ingredients in Mellit are nearly identical.)
After three weeks of these changes, Kitty's eyes are brighter, her legs appear to be feeling stronger, she is playing with much greater intensity and frequency, and she's grooming herself much better!
Next week, I will take her in to have her sugar checked again. But I am convinced that, though she isn't likely to be CURED, she feels and looks so much better. Her quality of life is improved, and that's my main concern for her. I am committed to watching her closely for any decrease in health or wellbeing. I understand that, with insulin, she could be given more years. As a pet owner, I am responsible to her in regards to the quality of those years. I could lose her sooner without insulin. That makes me sad, but I need to do what is best overall for all of us!
I am not a vet. I cannot give advice... I only wanted you to know that I am on the same page as you, and to let you know about my experiences so far. Follow your heart and instincts about your little friend. GOOD LUCK, AND GOD BLESS YOU BOTH!