Salacia oblonga

I was wondering if anyone knew anything about salacia oblonga. has anyone used it to treat diabetes? i am pre-diabetic. I just switched to the Blood Type Diet and was interested in purchasing some supps from the BTD store. i came across something called "glycoscia". it's supposed to be great for diabetics or those who want to control blood Sugar levels. it has resveratrol, salacia root, quercetin, red sage root, and maitake mushroom.

it's a bit pricey for me, but i found a decent deal for it on ebay:

http://cgi.ebay.ca/3-Supplements-for-weight-loss-and-healthy-metabolism_W0QQi...


so, has anyone tried salacia root? i just wanna know more about it before i make a bid.