For how many days can a person survive without food?
One human can survive for about 3 months without food, but only after consuming nearly a gallon of water per week.
The human body is capable of surviving for much longer than three months without food by slowing metabolic rate to a near standstill and breaking down its own tissues for energy. You may be surprised that the very act of living will cause this process by burning stored glucose in order to keep the organism’s systems functioning. When there are no stores left, atrophying begins which conserves cells at the expense of functionality- eventually leading to death due to starvation following damage from cannibalization of muscles and organs.