I think, maybe He is vegetarian:
www.jackiechan.com/blog/207165--Working-With-Max--Lots-of-Food---Visitors-On-Set

He seid there:
"On an American film, there is always so much food and so much choice. There is something for everybody. Even if you are a vegetarian, there are foods that you can eat"

I don't think he is a vegetarian.

GOOD ACTOR!

From 2006:
"I normally eat Chinese food for lunch because it

Jackie Chan is a vegetarian and when he met vegetarian actress Mallika Sherawat he was so enchanted about her being a veg that he invited her directly to a vegetarian dinner - according to Mallika's own statement!

I seen him also doing a talk video campaign (sorry, I can't remember what it was called but it was about helping the poor people that suffer from illnesses and AID's, etc...Alyssa Milano also did one on the same video). I do remember a "No excuses" quote. Anyway I know it doesn't mean he is Vege but i guess it could help find an answer somehow, if Jackie himself can't tell us for a fact. :)