I recently had lunch with the gorgeous and glowing Holli Thompson (a Charlotte's Book Expert Health Coach), at one of my favorite New York City spots, ABC Cocina. As the holiday and flu season approaches I have upped my zinc, Vitamin C and echinacea intake. But over the holidays I'm headed to Thailand and Vietnam to experience the spas, great food, and hopefully, tons of massages. My travel plans prompted me to ask Holli: what supplements should I pack for my travels to prevent getting sick across so much flying time, several airports, and all this delicious spicy Thai (street!) food? Here, her insightful answers and best tips for maintaining optimal travel health.