We've ordered a Genova NutrEval for me - the plasma version, so bloods and urine. I've just found out that you're supposed to limit your fluid intake to 1.9 litres (64 ounces) in the 24 hours preceding the test. This is literally impossible for me. I *need* to drink much more water than that, every day. Especially since my veins won't show up for the blood draw unless I drink at least a litre of water two hours before the test! Mum is going to phone our dietician tomorrow to ask about this. But I'm posting here in the meantime because I'm worried. I think the NutrEval test would be really helpful for me, but now I'm worried that the results may be inaccurate due to drinking 'too much' water!