Board Thread:Theories and Speculation/@comment-31266380-20170213121035/@comment-734582-20170218123113

Lorenzo.r.1st wrote: u meant conservation of mass, and not energy, by the way. but u see my point, just as I see urs, so im good. They violate both. The way chakra works, normal eating habits can't possibly generation that much energy. the more energetic jutsu are impossible to power with food; the mass-based jutsu (water, earth) are impossible to produce with food.

Besides, because E=mc^2, saying they violate conservation of energy is a more general (and more correct) statement.