You can live for a long time without eating, but dehydration (lack of fluids) speeds up the dying process.
If you stop eating and drinking, death can occur as early as a few days, though for most people, approximately ten days is the norm.
Can you die from not eating for a day?
Your body can be subject to starvation after a day or two without food or water. At that time, the body starts functioning differently to reduce the amount of energy it burns. Eventually, starvation leads to death. There is no hard and fast “rule of thumb” for how long you can live without food.
How long can a dying person live without food?
Length of Survival
Once a person stops eating and drinking, death usually occurs within two weeks.
What happens if you don’t eat?
During the first eight hours, your body will continue to digest your last intake of food. Your body will use stored glucose as energy and continue to function as though you’ll be eating again soon. After eight hours without eating, your body will begin to use stored fats for energy.
What happens when you starve yourself?
If you go below this number, your body will be forced to break down these muscle stores in order to create energy. Starvation diets have far-reaching negative effects on the body. Starving to lose weight changes the metabolism, reduces lean muscle, reduces bone density, and decreases strength.