Man, I have seen a lot of gory and bizarre films but "Eat" takes the bloody cake! Yes, the acting wouldn't make Meryl Streep jealous, but that matters very little because the subject matter is so damn dark. It's scary when you think about it - someone eating themselves into oblivion. I don't think I've ever seen another film like this, so its originality is what causes me to rate it so high.
This film would make an excellent study for students of abnormal psychology; really, it should probably be in the curriculum of universities and colleges worldwide. You wouldn't even need an unrated or uncut version of this movie. It's dark as hell from beginning to end. Interestingly, the acting was pretty weak in the start, but as the movie got more and more deranged, the acting improved.
"Eat", despite its flaws, is a must-see for all fans of extreme horror. If you can handle "Inside" or "Martyrs" or anything Takashi Miike dishes out, you can handle this.