Hi Vicky.
I also found out i had type 2 at 54, sepember 07, luckly i am a driver so never drank almost at all, well if i had a few days off maybe.
You must tell your father coke, as my doctor says "Should carry a health warning" full fat coke is almost poison, the ammount of sugar is fantastic. Also tell him dont have diat coke from the pump at a pub you still get whats left in the tube of normal coke, i fell for that one, only have bottled diat drinks.
With food i found tesco`s web site gives a lot of information of food contents like sugar, fats and salt if you look i`m sure you could find other things he can have, tesco do there own diat lemonade which is sugar free, it dont taist bad either.
Just a thought why not talk to your father and tell him you care about him and want to help him, It may be just what he needs to point him in the right direction.
Whitevanman.