I have to do the 2hr GTT next Thursday and just have a question.

Just wondering what the deal is with the GTT, and some people being asked to carb load (more than 150g carbs a day for 3 days leading up to the test) and some don't need to...?

Does is make a difference? I usually have a fairly high carb diet anyway (yes I know! Naughty!), but since getting the GCT results come back as high I have tried to cut back and eat lower carb/GI foods. Would this effect the results?

My midwife didn't say anything about changing my diet at all for the test, actually she's never asked anything about my diet at all, nor did the path lab, so I'm wondering if I should just eat like I had been or try to keep the carbs down?