If you're hearing the siren call of the Utah State Fair's food trucks, we have some sobering statistics for you. Eating that deep-fried Twinkie can set you back 420 calories and pack in 34 grams of fat. And if you're planning on attending the Utah Pork Producers Baconfest, pace yourself. A thick slice contains 65 calories, and let's face it: Who eats just one piece? Arm yourself with the facts about fair food before you go.