My OB didn't tell me to, but I have mine at 10am tomorrow and some friends told me not to eat after midnight. What do you ladies think?
Our 1st IVF miracle, Briggs Sterling, born via c-section due to IUGR and footling breech. 6.5.11. 5:51am. 5lbs 1.5oz.
The Sunny Side of Life Blog

Re: Do I need to fast before my 1 hr Glucose test?
2 years, 2 surgeries, 2 clomid fails, 2 IUIs, 1 loss, IVF #1 - 10/25/10 = BFP!, DS is now 3.5yrs!
TTC #2 - 6/12 surgery #3, FET #1 & 1.2 = BFN, 12/2012 FET #2 = BFP! DD is 1.5 yrs!
Surprise! 12/16/14 BFP, loss #2 12/31/14
I can't wait for the "im getting a divorce" post in 5 years or so because your husbands were fed up with your disgusting chair asses from playing on the knot all day and getting fired 4-5 times for not doing any work. you guys are all winners!! ~ Laur929
The Sunny Side of Life Blog
My OB told me to eat as I normally would. Once I get to the office I cannot have anything else to eat or drink (except the liquid that they give you for the test).
I asked her about fasting because I had a 5 hour glucose tolerance test in the past (completely unreleated to any pregnancy). My OB said I didn't, but that if I failed the 1 hour that I would be required to complete a 3 hour test where fasting would be necessary.
Good luck!