they lost health when they have no food, and yes, they can die, if deprived long enough
in general I try not to starve my guys, but i have had bad runs where i lost a villager or two before a steadier source of food was available
also, with little to no food available, they tend to hang around owrried about food more than actually working
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Why is it that if someone tells you that there are 1 billion stars in the universe you will believe them,
but if they tell you a wall has wet paint you will have to touch it to be sure?