Pitta Dosha and Ayurgenomics: From Classical Functions to Molecular Evidence

Ayurveda describes human constitution (Prakriti) through three Doshas-Vata, Pitta and Kapha. Pitta, predominantly associated with Agni mahabhuta, is traditionally linked with digestion, metabolism, thermoregulation, vision, complexion and higher mental functions. With the emergence of ayurgenomics, increasing research has explored whether these classical constitutional characteristics correspond to measurable molecular and physiological differences. This narrative review examines the relationship between the classical functions and properties of Pitta and contemporary physiological mechanisms, with particular emphasis on molecular evidence linking Pitta-dominant Prakriti with biological characteristics. Classical Ayurvedic sources from the Brihatrayi were considered alongside peer-reviewed studies on genomics, transcriptomics, epigenomics, metabolomics, immunophenotyping, metagenomics and pharmacogenomics published between 2005 and 2026. Available evidence suggests that Pitta-dominant individuals may exhibit distinctive metabolic activity, drug-metabolizing capacity, inflammatory responses and epigenetic patterns. Reported findings include associations involving CYP2C19 metabolizer status, PGM1 genotype, Pitta-specific SOX11 promoter methylation and the EGLN1-VWF hypoxia-related pathway. These observations indicate potential applications of Prakriti-based approaches in stratified medicine, pharmacogenomics and disease-risk assessment. However, the current evidence remains limited by inconsistent replication, variation in Prakriti assessment methods and relatively small study populations, with underrepresentation of females and diverse ethnic groups. Further multicentric studies using standardized phenotyping and robust molecular approaches are required to establish the biological validity and clinical relevance of Pitta Prakriti.