Vitamin D deficiency has emerged as a critical factor influencing the pathophysiology of allergies and respiratory infections, with growing evidence suggesting its role in modulating immune function. Insufficient vitamin D levels may lead to dysregulation of both innate and adaptive immune responses, heightening susceptibility to allergic sensitization and viral infections, particularly in the respiratory tract. Furthermore, vitamin D's anti-inflammatory properties could play a key role in reducing the severity of allergic reactions and respiratory disease outcomes. Join our experts, Dr. Neelam Mohan, Dr. Jagdish Chinnappa, and Dr. Jaydeep Choudhury, as they explore the connection between vitamin D deficiency and these health issues, offering insights into preventive and therapeutic strategies.