Food, when to eat? why..how

[chomskola]

I know in the starting packages there is food rations for the players, but are there any ruled for how long you can go without food, how long it takes to have a meal, penalties or bonuses connected to eating and so on?

[Gwendol]

You'll find most rules for exploration hazards here:
http://www.d20srd.org/srd/environment.htm