Upper Respiratory Tract and Immune Health The upper respiratory tract (URT) is composed of the airways located above the vocal cords, including the nose, sinuses, and throat.1 The URT naturally contains a wide variety of bacteria, and normal respiratory function depends on a healthy bacterial balance.2 It is important to maintain optimal URT health, especially through the winter months when schools are in session, and more children are indoors and are closer to one another.3Recent research has investigated the role of probiotics and vitamins in immune health. Approximately 80% of the body’s active immune cells are located in the gastrointestinal tract, demonstrating an important interaction between the intestines and the immune system.4 Research […]
