LMAO!
You're asking if a high fat / high cholesterol food item slapped on a high [simple] carb food item from a fast food industrial food chain restaurant that specializes in donuts is healthy?!
I enjoy Dunkin Donuts coffee as much as the next person, but please don't delude yourself into thinking that anything you can get from Dunkin Donuts or any other fast-food-type eatery is going to be good for you.
However, [just about ] anything in moderation.
Bon apetit.