Glyconutrients

A “Glyconutrient Sham” - Ronald L Schnaar and Hudson H Freeze
http://glycob.oxfordjournals.org/cgi/reprint/18/9/652

This guys warns: look for the hard science to back up the claim

Patent Application by Mannatech
http://www.google.com/patents?id=xE1_AAAAEBAJ&printsec=abstract&zoom=4#v=onepage&q=&f=false

Very good at providing background and basic explanation of what they think Glyconutrients do.