What Is Gut Health? A Complete Guide
Your gut does far more than just digest food. Scientists sometimes call it the “second brain,” because this system communicates constantly with your immune cells, hormones, and nervous system. That interplay influences how you feel after meals, how effectively you fight infections, and even how resilient your mood and energy remain throughout the day. Yet most people only think about gut health once problems appear — bloating, bathroom irregularity, unexpected food reactions, or relentless fatigue.

