My co-workers are bringing in a sugary fruitcake at least once a week. I eat a second helping of candied yams whenver they’re on the table. And delicious eggnog refills? Yes, please. Here comes zit number four.

Here’s the thing: These goodies are high in sugar and carbs, and they have a high glycemic index, which raises your blood sugar level, says Jaliman. Studies have shown that eating high quantities of these types of foods can increase skin inflammation and aggravate breakouts.

So instead of loading up a plate of hors d’oeuvres at your next party, munch on a handful of cashews or almonds — they contain zinc, which may be helpful in treating acne, says Zeichner. Also, skip the sugary holiday drink and have a cup of hot mulled cider or hot tea instead, says Wu. And say goodbye to your morning cappuccinos with whipped cream (sorry, Starbucks).