World record for not eating is 1 year and 17 days, and that was a lardass under medical supervision, supposedly for research purposes.  Absolute land whale to start with.  He went from 456 pounds down to 180. A normal healthy human can only last 3 weeks without food before they start to cause serious damage to their body.  With minimal food, that can be dragged out much longer depending on the person's starting weight and the amount of exercise they get.  Knowing those numbers, it always pisses me off to no end when I see some bloat beast screaming that they're going into "starvation mode" after missing one meal or snack.