这是拉登老婆说的，见纽约时报，不只是西瓜

Contrary to a widely held belief that Bin Laden was on dialysis to treat a kidney ailment, Pakistani investigators said last week that his youngest wife told them he was healthy. “He was neither weak nor frail,” one of the investigator quoted the wife as saying. She told them, they said, that Bin Laden had recovered from two kidney operations a decade or more ago in southern Afghanistan, in part by using homemade remedies, including watermelon.