Vol. 2, Issue 1, Part B (2025)

Background: Ayurveda, the ancient Indian system of medicine, emphasizes the role of diet (Ahara) in maintaining health and preventing disease. Among various dietary principles, the consideration of Matra (quantity), Desha (geographical habitat), and Kala (time or season) forms the core of personalized nutrition in Ayurveda. This paper explores their significance in health promotion and preventive care. 
Objective: To critically analyze and interpret the classical Ayurvedic concepts of Ahara Matra, Desha, and Kala and their relevance in modern-day dietary planning for promoting holistic health. 
Methods: This conceptual study is based on a literary review of classical Ayurvedic texts including Charaka Samhita, Sushruta Samhita, and Ashtanga Hridaya, along with modern scientific interpretations. Textual references were systematically compiled, interpreted, and correlated with contemporary understanding of personalized nutrition and chrononutrition. 
Results: The review reveals that Ahara Matra ensures proper digestion and assimilation, Desha provides insight into food compatibility with regional physiology and climate, and Kala guides seasonal and circadian dietary adaptations. Collectively, these three parameters regulate Agni (digestive fire), prevent Ama formation (toxic byproducts), and maintain Dosha balance. 
Conclusion: The integrated understanding of Ahara Matra, Desha, and Kala offers a profound approach to personalized dietetics in preventive medicine. Its incorporation into daily dietary practice can significantly improve individual health outcomes and reduce lifestyle-related disorders.