Immune system, cold and flu. Dr. David Kolbaba welcomes Dr. James LaValle, nationally recognized clinical pharmacist, board certified clinical nutritionist, author, good friend and colleague. The doctors discuss common questions about cold and flu season and strategies that can help build your immune system. Wakunaga’s Kyolic Aged Garlic Extract is highlighted. Visit Kyolic.com for more information about Kyolic Aged Garlic Extract Immune Formula 103.