Characters who don't eat or drink suffer the effects of exhaustion (see the appendix). Exhaustion can't be removed by resting until the character eats and drinks the full required amount.
Additionally, characters who haven't eaten or drunk their full required amount for at least two days, have vulnerability to poison and disease.
Food
A medium character needs a fifth of their total Strength plus Constitution score in pounds of food per day. For each size category larger or smaller, double or halve the required consumption.
After every two days without enough food, a character must make a DC 8 + half the total days starved Constitution saving throw, or suffer one level of exhaustion.
Consuming at least a quarter of the required amount of food, quadruples the number of days before each saving throw, making each day count as though it was one fourth of a day.
Consuming at least half the required amount of food stops the starvation from continuing, however it only locks the amount of days starved in place. Meaning exhaustion caused by lack of food still can't be removed until the character eats the full required amount.
- Food Summary
| Consumed Food | Effect | |:-:|:-:| | **Required Food** | One fifth of your Strength score + your Constitution score | | Full | Exhaustion can be removed by resting. | No Food | Every two days, make a Constitution Save DC 8 + half the total amount of starved days. On a failure, suffer one level of Exhaustion. | 1/4 Required Food | Constutiton Save every eight days instead of two. Each day counts as 1/4th of a starved day. | 1/2 Required Food | Starvation on hold.
Water
A medium character needs one gallon of water per day, or two gallons per day if the weather is hot. For each size category larger or smaller, double or halve the required consumption.
A character with no access to water automatically suffers one level of exhaustion at the end of the day. A character who drinks only half the required amount, must make a Constitution saving throw DC 10 + 5x the amount of days without water, or suffer one level of exhaustion at the end of the day.