Vitamin D literally unites your immune system, helping it work in a more balanced way and making it very important during cough and cold season and in the protection of your lungs. Here's what you need to know from Chief Scientific Director and Pharmacist, Jerry Hickey, Ph.  Exclusive Offer! Take advantage of an exclusive podcast offer today by visiting www.invitehealth.com/podcast or by clicking here. For more information on the products or studies mentioned in this episode, click here.  †This information is intended for educational purposes only. It is not intended to treat, diagnose, cure, or prevent any disease. Please speak with your doctor or another healthcare professional before beginning a supplement regimen.