1 hour glucose test.

I have my 1 hour today and my doctor told me at my last visit to eat a high protein low carb. So I’ll eat some eggs. I just googled if I can drink water up until the test and it said avoid food and a lot of water for 8-14 hours before? Obviously I’m going to listen to my doctor but has anyone passed the one hour by eating only a couple hours before the test even if it was high protein. I failed my one hour with my first and got sick during the 3 hour haha so trying to avoid that again.