We have been told muffins, especially bran muffins are good for us. They keep us regular and help us flush out the bad stuff. There is a bit more to the story. The main ingredient in muffins is fat. Check the wrapper and you can see the grease soaked into it.
Here is a scary comparison. A medium-sized blueberry muffin has more calories than a McDonald's Sausage McMuffin that's the same size. Almost half of those calories are from fat equal to a third of the fat you are supposed to eat in an entire day. Bran muffins have only slightly less calories.
The Quaker Oats True Delights Bar contains raspberries and chocolate and has almost the same amount of fat and calories as a much larger Snickers bar.
Of course, if you stick to chocolate muffins with bacon on top, everything will be fine.