How many calories does a Mcdonald's chicken sandwich have? It varies slightly by which version you order, but as of 2016 their Southern Style Buttermilk Crispy Chicken Sandwich has 470 calories, of which 190 are from fat. Does it have any nutritional value in terms of vitamins and antioxidants? Well they don't publish the vitamin content, but based on this testing, the ORAC (antioxidant) value for the sandwich ranks it among the bottom 5% of all foods tested.
Research Support, Non-U.S. Gov't: Carlsen MH, Halvorsen BL, Holte K, et al. Nutrition Journal NIH Jan 2010