Yes, it is fine for your boy to have skimmed milk as long as it does not give him diarrhea.
Meat or fish that is boiled or cooked is fine as well.
You just want to stay away from carbs like grains in foods.
Here is more info about diabetes in cats:
I hope your baby does well and will be fine.
Warmest best wishes for him,
Have a very merry Christmas and a happy, healthy new year.
It is my pleasure to help someone as lovely as you and your sweet baby.
I will always be here for both of you.
Thank you for your above accept.Sending as an I R so U R not charged again
Best wishes for a wonderful Christmas,