Why wild ginseng is so valued in China?

what's the nutritional value? 
Also, even wild ginseng(15-40 yrs. old root) from Vermont are highly sought after by many people in China.

所有跟帖： 

• 野山参的人参皂苷含量大于家参。外观上野山参的“芦碗”多，家参的“芦碗”少。一个“芦碗”代表一年 -御用文人- ♀ (0 bytes) () 04/13/2013 postreply 10:33:40

• What effect 人参皂苷 has to human body? thanks. -blackmatter- ♀ (0 bytes) () 04/13/2013 postreply 11:10:05

• 人参皂苷的药理作用 http://wenku.baidu.com/view/36e47ebef121dd36a32d82c7.h -御用文人- ♀ (92 bytes) () 04/13/2013 postreply 13:03:48

• 中药讲灵性，不讲化学。 -xiyaopeng- ♂ (0 bytes) () 04/13/2013 postreply 12:12:23

• 回复：小孩(5岁以下)~~老人(尤其有血压高/心脏病等病症的老人)，请不要随便吃人参煮的 -benji1012- ♀ (2370 bytes) () 04/13/2013 postreply 16:25:45