Consumers, who had eaten a 911 calorie calorie meal at "unhealthy" McDonalds estimated that their meal contained 764 calories. But consumers who had eaten a 911 calorie meal at "healthy" Subway, estimated they'd only consumed 559 calories.
Beyond that, a different study showed that consumers who'd eaten a Subway BMT sandwich, which weighs in at 200 calories more than a Big Mac, assumed their meal was healthy and were more likely to order the full-sugar soft drink, supersize it, and then order cookies for dessert than those dining on the unhealthy-but-lower-calorie Big Mac.