Or rather, too many cheeseburgers.
I don't typically eat a lot of fast food, being sensible about reserving my over-the-top fat and sugar intake for dessert, but amid all the road trips this summer I find I keep getting stranded at mealtime near someplace where burgers are really the safest choice. (We will not speak of the place where I attempted a tuna sandwich, or discuss how on earth it is possible to make tuna inedible.)
Of course, in places like that, the burger tends to be pretty awful too, but if you put even the ickiest of processed pretend cheese on top, it can be bearable. So I keep doing that.
And after a couple of weeks of feeling horrible as a result, I'm coming to the conclusion that it is, in fact, better to make sandwiches at home. Even if it does mean getting up even earlier than pre-dawn to do it.