Grandma wants you to have a second helping of her famous potato pancakes. The office party pressure to drink is on. And shopping is squeezing out your exercise routine. No doubt about it: Staying on top of your diabetes during the holidays can be a challenge. But you can still enjoy the festivities while keeping your blood sugar stable, assures Martha Funnell, MS, RN, CDE, researcher at the University of Michigan Diabetes Research and Training Center. "Think about situations you might find yourself in and decide how you're going to handle them."