Malnutrition

Hunger Pains.

Eating less than the required food for a day forces you to save vs. Exhaustion at the end of the day - at least 1 ration is necessary per day to keep a PC from becoming malnourished. The difficulty of the save increases by 1-2 each day a PC goes without adequate food.

If a player goes 5 days without adequate food, they become 'malnourished'. While in a malnourished condition, each full meal will restore one additional exhaustion during next long rest.