My sister used to think that food would reconstitute in your stomach after you swallowed it. All those bits of apple would come together to make a whole apple once you had finished it. Presumably, your stomach would break it down again...
A childhood belief about eating

others believed things like this
- My Mom used to tell me if I swallowed an apple seed I would grow an apple tree inside my stomach!— Marg
- When I was a kid, I used to bellieve that when I eat an apple pip an apple tree would grow up in my stomach!Anon
- I used to believe that an Adams apple was a piece of apple that was stuck in someone's throat.— Ron Aaron
- I thought the big apple was literally a giant apple in New York Anon
- I used to believe that if you swallowed an apple seed, a tree would grow in your belly.— Rachel
- When I was little my uncle had a huge adams apple. He told me he'd swallowed a marble.— Stacey