text: should you eat a lot before fasting for your blood test? i have 2 hours before i start fasting (9pm) should i eat what i normally eat or eat a lot because i might get hungry? i just bought a salad today, but  i think i'll leave it till tommarow because it's low in cal. i've eaten 2 mozzerella sticks so far and going to eat a vegie burger soon, what else should i eat? if you anymore than you normally would and your test is in the morning, you might actually be hungrier in the morning, so i wouldnt do it.