Agni and the Gut-Liver Axis: An Integrative Perspective on Digestive and Hepatic Health

Abstract

The gut-liver axis represents a bidirectional communication system between the gastrointestinal tract and liver, playing a crucial role in immune regulation, detoxification, and metabolic homeostasis. Disruption of this axis, often caused by gut microbial dysbiosis, contributes to the pathogenesis of various hepatic conditions, including non-alcoholic fatty liver disease (NAFLD), alcoholic liver disease, cirrhosis, and hepatocellular carcinoma. Ayurveda emphasizes the role of Agni (digestive fire) in maintaining physiological balance, with disturbances leading to the accumulation of Ama (toxic metabolic byproducts), conceptually similar to the gut-liver axis and dysbiosis as described in modern medicine. This review correlates current biomedical literature on the gut-liver axis with classical Ayurvedic texts discussing Agni and Ama. A comparative analytical approach was employed to identify functional parallels and conceptual intersections between the two systems. Findings indicate significant overlap in the physiological and pathological roles of Agni in Ayurveda and the gut-liver axis in modern science. Both models emphasize the centrality of digestive and metabolic integrity in systemic health and disease manifestation. Subtypes of Agni—Jatharagni, Bhutagni, and Dhatvagni—demonstrate functional analogs with the metabolic and immunological processes within the gut-liver axis. Despite notable conceptual similarities, direct scientific correlations between Ayurvedic and biomedical models remain underexplored. An integrative framework that aligns Agni-based Ayurvedic understanding with gut-liver axis physiology may enhance comprehensive approaches to the prevention and management of gastrointestinal and hepatic disorders