Thanks everyone, for all of your replies.
Basically, I have been told that my sugar levels can be controlled through diet alone, which I am very relieved about.
However, I recieved much contradictory advice through the various ward doctors, OBs, dieticians and endrocrinologists. One person tells me to make sure I eat 1 1/2 bowls of rice at every meal, despite high-starch meals sending my levels shooting up. Another tells me to eat no rice/bread, and just lots of fresh veggies and lean meat. Another tells me to make sure I snack throughout the day, whilst another says that if I snack through the day, my baby will be 'fat'.
So all I can do is continue to eat sensibly, and take my own levels, and assume that there is no 'right' way and the dogmatic attitudes I have encountered are just part of the 'God/Doctor' complex that seems to rule the public system.
It is very confusing at six months pregnant to be told you have a potentially serious medical condition, but be given such contradictory advice about what to do about it. Common sense tells you that when you are hungry, you eat. That when you are not hungry, you don't eat. Unfortunately, common sense does not seem to play much part in diagnostics in the treatment of GD at this hospital. Thank god for my private OB - she's the only one that has made any sense. And following her low starch/lean protein and lots of veggies and fruits, my levels have been FINE.