Hungerless casting

Hungerless casting or reduced-hunger casting offer reductions in (or elimination of) the nutrition penalty incurred by spellcasting. Both are granted automatically to high-intelligence wizards:

Intelligence	Reduction
17 or more	No hunger penalty
16	25% hunger penalty
15	50% hunger penalty
14 or below or nonwizard	100% hunger penalty

Hungerless casting is actually very useful, especially when attempting the foodless conduct. The unreduced nutrition penalty for each spell level, with and without the Amulet of Yendor, follows:

Spell level	Normal hunger	Min with Amulet	Max with Amulet
1	10	12	30
2	20	22	60
3	30	32	90
4	40	42	120
5	50	52	150
6	60	62	180
7	70	72	210

Casting the detect food spell never incurs a hunger penalty. Also, if casting a spell would put you at three or less nutrition, your nutrition is set instead to three.