On the compilation album iTunes Originals: Goldfrapp, the duo commented on the recording of the song.

Will Gregory:

“Eat Yourself” was a jam. A lot of stuff comes from both of us jamming, you know, either singing or playing, whatever it is, just to kind of make something happen. With “Eat Yourself” a lot of the vocal parts were just what happened one day in about five minutes, very spontaneous, and I think we liked that. Anything that happens spontaneously and sounds good is always very sort of special, isn’t it?"

Alison Goldfrapp:

Yeah, you wanna try and keep the performance of something, y'know? But I did write a bunch of lyrics for that and then I ended up not really singing… hardly any of them in fact. There are three lines that are really kind of oddball, I think…

But I was going pretty crazy at the time, so I thought I was either gonna eat myself or explode, one or the other (laughs)."

In spite of that, piecing together bits of live performances gives us a clearer idea of what the lyrics are, or at least what they have become afterwards.

The duo told RemixMag:

Will:

We used the Optigan on ‘Eat Yourself’. It was made in the ‘70s, so it comes with this built-in crackling sound, and it was a nice way to initiate the material we used on the album."

Alison:

And it had this old woody and folksy guitar sound with a very rustic feel. I did this little scat over the music, and it definitely sounded nice and interesting."