Board Thread:Naruto Discussions/@comment-32493896-20170712055619/@comment-734582-20170712083853

No. The only thing we've seen him do with his hand mouths is chew clay. If he would eat with his hands, he would need to have a connection through his arms to his stomach, which would be bad for all sorts of reasons.

His chest mouth probably could, as it's quite possible that it bridges the short gap between where the mouth is and the stomach.