I was wondering if I could get a wee explanation. I was recently went to have a blood test for gestational diabetes. It was a fasting test. I was unsure about if water counted so checked a few websites and all said no food or drink except water. I had a small glass of water but was strongly told off for doing so and told that the test was no longer accurate and I would need to come back. When I explained that I had checked the NHS website re glucose testing for gestational diabetes I was told it was wrong and I shouldn't have looked at it (despite being recommended for common queries by midwives). There was another girl there who had done exactly the same thing. I was wanting to know the rationale behind no water. Any info I look up all states water is allowed so if anyone could help I would appreciate it.