While the portions aren't massive and there's often a salad slipped on your tray, that doesn't mean airline meals are
healthy. To the contrary, the airlines load up their food with sugar and other additives that turn an average meal into an indulgent one while they try to combat the effects of altitude.
To make things worse, research has shown that when given a choice of meals, passengers inherently gravitate towards comfort food-partly out of boredom and partly to counteract fears of flying.