Understanding Gut Health: A Gastroenterologist’s Guide to Natural Colon Cleansing and Relieving Overnight Constipation

Introduction: The Hidden Engine of Human Wellness

The human gastrointestinal tract is far more than a simple processing system for nutrient extraction; it functions as a central regulatory organ that impacts systemic inflammation, metabolic homeostatic control, immune responses, and neuro-enteric communication via the gut-brain axis. Within this integrated physiological landscape, the colon—or large intestine—serves a critical role in fluid and electrolyte reabsorption, short-chain fatty acid synthesis, and the systematic elimination of metabolic waste products.

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