The length of time a person can survive without food varies widely depending on factors such as age, health, hydration, body fat reserves, and environmental conditions. Generally:

• Most healthy adults can survive about 2 to 3 weeks without food if they have access to water

• Some records show survival up to 30 to 61 days without food, but these are exceptional cases and not typical

• The body initially uses glucose and glycogen stores for energy, then shifts to fat stores through ketosis, and eventually breaks down muscle tissue if starvation continues

• Without water, survival is much shorter-typically only 3 to 5 days because dehydration causes rapid organ failure

• In extreme cases under medical supervision, survival without solid food has lasted up to 382 days , but this is highly unusual and dangerous

In summary, while the average person can survive up to about three weeks without food if hydrated, survival beyond that depends on individual conditions and is rare. Without water, survival drops to only a few days