That all depends on bodyweight:
Overweight - About 4-5 weeks...
Underweight - About 1 and a half weeks...
Average - About 3/4 of a week.
It also depends on how much you drink. About 70% of the body is water and fluids, therefore to keep you alive you need to have a steady amount of water or liquids in the body.
2nd Answerer says: I can't go more than a couple of hours.
As long as it has food and water available. Without it, it depends on when it last had food.
3 weeks
Yes, you won't last long without it!
1 day
Dude, that's a long time without food.
i ddont know
a few weeks
four months
7-10 weeks
4 days.
slugs can live upto 24hours with out food.
An adult praying mantis can only go a day or two without food.