Food goes in our mouths; our bodies compost it; and the remains exit through the bottom of the torso.
The food that goes in my mouth is not me. The waste that comes out the bottom end is not me. How about that composting process? Is that me? The stuff i chew? The masticated mess that the stomach digests? Is that me? The slurry that enters the small intestine. Is that me?
When do the vitamins and minerals become "me"?
The body is constantly changing. Water in. Pee out. Is it ever me?