What he is saying is, when you have to reply to a decision it has to lead to you eating at least once in a two day period. If you don't find food in two days, then you are dead.
The game isn't real time, but 24 hours of real time equals 12 hours of game time. So, in 4 days of real time, your player would have to eat 1 time or they will die.
Thank you @deanlogic for taking the time to explain, I appreciate it very much ^_^