My grandmother told me eating bread crusts made your hair grow. Didn't get me to eat them though, since I was at the age where my only interest in hair was avoiding going to get it cut.
A childhood belief about crusts

others believed things like this
- My friend believed that eating bread crusts or eating mustard will give you curly hair.— Linda from Southern California
- Bread crusts make your hair go curly— bowlax
- i used to brlieve that if you ate bread crusts your hair would go very curl and i did untill i was about 13— BubZ
- I used to believe eating the crusts from sandwiches would make my hair curly.Anon
- untill i was about 8, i thought that eating crusts would give u curly hair.— Harry
- I believed that if you ate a piece of your own hair, a new strand of hair would grow on your head.— Ryo