I have been diagnosed with GD in my last pregnancy. You won’t be given anything to prick with, you buy it yourself and prick before meal and 2hr after meal to record and monitor whether the meal will make ur blood glucose shoot above the recommended range.
The big NOs are those food you receive - cookies, cupcakes, ice cream - the obvious sweet stuffs
The not obvious kind are: carbo, cornflakes, sauces (ie teriyaki sauce), pau.
If you are unsure whether the food is safe or not, prick your self, eat the food & measure . If it exceed the range, means the food is not good.
You can still have yummy food: western food (without the sauce), fish & chip (I skip the batter) but I eat abit of fries, pasta , there’s so many things to eat.