Check this out.
FTA: "While present-day Taoist diets call for eating lots of grains, ancient diets called for the eating of no grains at all. This was because early Taoists believed the rotting of the grains in the intestines attracted demonic creatures known as the 'three worms.' These demons loved eating decaying matter in the intestines in the hope that they could kill the person and devour his corpse."
Auto-immune diseases anyone?
Also, I found it interesting that every 10-15 days they have "festivals" where they often overeat. Leptin refeed?
Many of them also practice daily fasts. IF?
The only problem I see is the avoidance of meat.
Haha, VERY interesting stuff, though!