Humans need food to live. However, some researchers say humans can survive without food for up to 2 months.

Humans really can survive without food or in liquid form. As long as they still have enough water this can last, depending on health and body size.

It is estimated that healthy people can last between 30 to 40 days without eating a single bite of food.

In ABC Science, there is one extreme case. Where men weighing 200 kg can survive in 382 days without solid or liquid food. During not eating food he managed to lose 80 kg and was able to maintain his weight for five years. Although he does not eat, but this man is monitored by a doctor and given a multivitamin, potassium and sodium supplements.

In another case on the BBC (20/02), Swedish Peter Skyllberg who was buried under snow was found to have survived for two months without food.

Catherine Collins, as a spokesman for the Diet Association in the UK explained that the body can condition the body during starvation to minimize the number of calories in the body. When the body stops feeding, the body uses sugar stored in the body.

The liver and muscles can store glycogen which is then converted to glucose. When glucose in the body runs out, fat can be converted into energy supply. If the fat runs out, the body will take energy from the protein from the muscle.