<<Disclaimer: Verify this information before applying it to your situation.>> I have no idea if McDonald's changes the oil, but I recall that they changed the ingredients of their Hash Browns. I believe they are gluten free. In any case you can make your own judgement based on the ingredient listing. I retrieved it for you from their web site. Hash Browns: Potatoes, partially hydrogenated soybean oil, natural flavor, salt, corn flour, dextrose, sodium acid pyrophosphate added to maintain natural color, and spice. Cooked in partially hydrogenated soybean and corn oils, TBHQ (to protect flavor), citric acid, dimethylpolysiloxane and natural flavor. have a good day p _______________________________________________ Patrick Dean Senior Technical Writer The Bulldog Group Inc. 161 Frederick Street, Suite #200 Toronto, Canada M5A 4P3 [log in to unmask] http://www.bulldog.com (416) 594-9207 x256 (416) 594-9577 (fax)