MCAS
Vitamin D as a Mast Cell–Modulating Hormone:Mechanistic Evidence, Clinical Implications, and Relevance to Mast Cell Activation Syndrome
Yoon Hang “John” Kim, MD, MPH Board-Certified in Preventive Medicine | Integrative & Functional Medicine MD www.directintegrativecare.com Abstract Vitamin D has emerged as a pleiotropic immunomodulatory hormone with significant effects on mast cell biology. Mast cells, which are central effectors in allergic disease and increasingly recognized as drivers of
