Board Thread:Naruto Discussions/@comment-32117903-20170914232807/@comment-734582-20170915145956

Vladosaurus wrote: It's not a matter or chakra. The humans who were turned into Zetsu by Kaguya also didn't posses chakra, since humans only obtained chakra after Hagormo spread it during his journey. This is the part where the series sucked, but:

Technically everyone has all the ingredients for chakra, and has had it all along. Hagoromo just gave people some form of spiritual enlightenment that allowed them to bind their mental and physical energy into actual chakra. Humans, animals etc all have chakra, they just can't necessarily mold it.