Indeed. You can't tell if you're doing damage, or eating beets.... If I drink beet supplement, then do an e-ride, which may consist of eating some black cherry Bloks, some Fruit Punch Roctane and Tailwind, I swear I'm flushing a crime scene from Forensic Files when I get home.
Visibly pink pee, if it's not due to something you ate, generally means a structural issue somewhere in the plumbing, and does not necessarily imply kidney damage. Most kidney injuries are silent.