Can it be? He did eat the right stuff!..
Li Ching-Yuen was a Chinese herbalist, martial artist and tactical advisor who lived to the age of 256 having over 200 descendants during his life span and surviving 23 wives.
How did he do it?
Ching-Yuen is reported to have lived off a diet of herbs and rice wine inculding lingzhi, Goji Berries- wild ginseng, he shou wu and gotu kola.
Where is the proof?
In a 1930 New York Times article, Professor Wu Chung-chieh of the University of Chengdu found Imperial Chinese government records from 1827, congratulating Li Ching-Yuen on his 150th birthday. Further documents later congratulate him on his 200th birthday in 1877. (Wikipedia 2013).