28. C (grilled cheese). Any time you add cheese to a sandwich, the saturated fat climbs. At a typical deli or restaurant, you can expect a grilled cheese sandwich to have 17 grams of sat fat, egg salad to have 10 grams, tuna salad to have 8 grams, roast beef to have 4 grams, and turkey to have 2 grams (not counting any extra mayo on the bread). But thanks to the unsaturated fat in the tuna salad's mayo, it's unlikely to raise your cholesterol. (Unfortunately, all that mayo jacks up the calories to the 700s—almost twice as much as the turkey sandwich.)