It’s easy to get run down during the holiday season. And this year, it coincides with H1N1 flu season. You can boost your immune system by eating a healthy diet. Here are some suggestions from cookbook author Lucy Waverman. Her latest book is A Year in Lucy’s Kitchen features recipes with ingredients now in season that will help you power through those parties. You need Omega 6 and fish with those omega fats include mackerel, kingfish, sardines, and Alaska black cod. And there’s a whole other category of food most of us don’t get enough of.