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Re:Fill 'Er Up With Human Fat by jmtame on Thursday December 25, 2008 @11:56PM (#409965)
Of all the groups, fat is the most energy-dense.

Carbohydrates = 4 kcal/gram | Protein = 4 | Fat/Lipids = 9 | Alcohol = 7 | Vit/Mins/Water = 0

Re:Fill 'Er Up With Human Fat by likpok on Friday December 26, 2008 @12:46AM (#409996)
Note that fat is more energy dense than ethanol, but a little less than gasoline (which is 48 KJ/g, compared with fats 37 KJ/g).
Re:Fill 'Er Up With Human Fat by mynameishere on Friday December 26, 2008 @01:59AM (#410031)
U-235 has about 6 orders of magnitude on gasoline.