OK, what’s in this  Sweet Onion Chicken Teriyaki sandwich? (Hint: It’s a trick question…)

DNA researcher Matt Harnden at Trent University’s Wildlife Forensic DNA Laboratory, working out of  Peterborough, Ontario, analyzed six popular chicken sandwiches served at various fast food chains. Unadulterated chicken should have 100% chicken DNA, or close to it. Seasoning, marinating or processing meat  bring that number down some , so fast food  wouldn’t be expected to have a perfect score.

The chicken in the following sandwiches were tested: McDonald’s Country Chicken – Grilled,Wendy’s Grilled Chicken Sandwich, A&W Chicken Grill Deluxe,Tim Hortons Chipotle Chicken Grilled Wrap, Subway Oven Roasted Chicken Sandwich, and Subway Sweet Onion Chicken Teriyaki, which is made with chicken strips.

The lab tested two samples of five of the chicken meat fillings, and one sample of the Subway strips. From each of those samples, the researchers isolated three smaller samples and tested each of those. The scores were then averaged for each sandwich. The results? Continue reading →