by Stephanie M. McPherson, science writer and video producer for Joslin I’m all about fall. When the air chills and pumpkins adorn doorsteps, my tastebuds turn to cravings for caramel apples, pumpkin seeds, and cider donuts. With such a short window to celebrate this season, I try to cram as many of these treats in while I still have time. But since I started working at Joslin, I’ve become acutely aware of nutrition and calories. So this year I decided to…