Weigth = Volume * Density / 1000
NPBonus = NutritionValue() * Volume * Density * NPModifier / 1000000

Eatable items:

Name:		Material	NV	Volume cm^3	Density g/dm^3	NPModifier	Weigth g	Turns	NPBonus
banana		bananaflesh	200	150		1200		1.0f		180		1	36
holybanana	bananaflesh	200	1500		1200		1.0f		1800		1	360
lump		bananaflesh	200	600		1200		1.0f		720		1	144
lump		schoolfood	100	600		1500		1.0f		900		1	90
lump		pepsi		400	330		1500		1.0f		495		1	198
potion		omleurine	30	1500		1000		1.0f		1500		1	45
bone		bone		20	1500		2000		1.0f		3000		1	60
loaf		pork		400	500		1200		1.0f		600		1	240
loaf		beef		400	500		1200		1.0f		600		1	240

Corpses:

player		humanflesh	200	60000		1200		0.01f		72000		6	144
farmer		humanflesh	200	30000		1200		0.01f		36000		3	72
cityguard	humanflesh	200	60000		1200		0.01f		72000		6	144
shopkeeper	humanflesh	200	100000		1200		0.01f		120000		10	240
oree		pepsi		400	110000		1500		0.01f		165000		11	660
swatcommando	humanflesh	200	110000		1200		0.01f		132000		11	264
ennerbeast	ennerbeastflesh	200	30000		1800		0.01f		54000		3	108
darkfrog	darkfrogflesh	1000	2500		1200		0.01f		1200		1	30
elpuri		elpuriflesh	1000	277500		2400		0.01f		19200000	800	6660
elpuri		pork/beef	400	277500		2400		0.01f		19200000	800	2664
froggoblin	goblinoidflesh	200	25000		1200		0.01f		30000		3	60
conicalmommo	brownslime	100	250000		400		0.01f		100000		25	100
flatmommo	brownslime	100	150000		400		0.01f		60000		15	60
golem		bananaflesh	200	100000		1200		0.01f		120000		10	240
golem		pork/beef	400	100000		1200		0.01f		120000		10	480
wolf		wolfflesh	400	40000		1200		0.01f		48000		4	192
dog		dogflesh	400	30000		1200		0.01f		36000		3	144
jackal		jackalflesh	400	20000		1200		0.01f		24000		2	96
donkey		donkeyflesh	400	40000		1200		0.01f		48000		4	192