How IgA (Secretory Immunoglobulin A) Affects Leaky Gut & Intestinal Permeability
Quick Answer (Key Relationship)
Secretory IgA is your immune system's primary defense against pathogens in the GI tract. Low IgA indicates immune dysregulation and impaired barrier protection, allowing pathogens and toxins to cross. Chronic stress and infection deplete IgA.