Over 70% of the immune system resides in the gut. This connection, known as the gut-immune axis, helps regulate immune responses and tolerance. When the gut is inflamed or dysregulated, it can cause a cascade of immune imbalances, contributing to chronic conditions like allergies, autoimmunity, and CIRS.

In environmentally sensitive individuals, even minor gut disturbances can amplify systemic symptoms. Restoring gut balance can reduce immune reactivity and help calm inflammation throughout the body.

Key strategies include eating a diverse, anti-inflammatory diet, managing stress (which directly affects gut function), and maintaining regular digestion and elimination. Supporting the gut can be one of the most effective ways to support immune health and improve resilience to environmental triggers.