Adding to xMenace: Don't forget chips, they are lethal things, covered in fat and full of carbs. Fat makes things unpredictable, carbs in chips will spike your bg, however they won't take effect immediately as your body breaks the fat down first, leading to a spike later in the day. Biscuits tend to be full of carbs and will spike your bg.
I thought I would also spot the good things, which are: milk, cheese (small quantities and get the real thing not processed cr*p which has no nutritional value) and the subway (not all that good unless you had lots of veg).
Alternatives:
Brown bread (be careful not all bread born equal)/Pasta/Rice/Spaghetti, Noodles, Fruit, Veg, Meat, Bran, Oats and Nuts
But all is not lost: healthy diet = little bit of everything, including the bad stuff and the green stuff. Take up a sport that you enjoy and eat more protein, that way you will gain muscle mass = weight, helping you control your bg in the long run.
