Hi David
I subscribe to Mercola.com I get a lot of helpful info from here and I receive regular emails from Dr Joseph Mercola. I recently received an email Headed "The One and Only way you can tell Food is GM Free" I am very interested in GMO it worries me greatly, but in this article he was listing foods to avoid so as to avoid GM foods and he listed Dextrose could you investigate this as I am using this alot in my cooking for my grandchildren. I tried to put the link on for you but was unable to but if you google mercola.com you should be able to find it.
I will be awaiting your response
Kind Regards
Deborah