Among the foundational chapters of Charaka Samhita, the Dravadravya Vijnaniya Adhyaya (Sutra Sthana, Chapter 1) and the Annaswaroopa Vijnaniya Adhyaya (Sutra Sthana, Chapter 27) occupy a position of singular pharmacological and nutritional significance. The former delineates a comprehensive ontological and pharmacodynamic framework for medicinal substances (Dravya) through the five-parameter model of Rasa-Virya-Vipaka-Prabhava and the twenty Gunas, while the latter applies an equivalent analytical paradigm to dietary substances (Ahara) through twelve classified food groups (Ahara Varga). The present critical review systematically examines both adhyayas within a structured IMRAD framework, drawing sustained comparisons between classical Ayurvedic pharmacognostic principles and contemporary pharmacology, nutritional biochemistry, and precision medicine.Findings reveal robust conceptual convergence between the Rasa Panchaka framework and modern pharmacodynamic classification systems, and between Ahara Varga attributes and current evidence in nutrigenomics, functional food science, and clinical dietotherapy.Both adhyayas, viewed in tandem, represent an integrated pharmacognostic-nutritional continuum of enduring translational relevance for pharmacopoeia development, integrative clinical practice, and doctoral-level Ayurvedic research.
*1Dr. Shivani R. Naxine, 2Dr.Priti V. Gahukar, 3Dr. Preeti V. Sahu, 4Dr. Ashvini P. Datir (Mon,) studied this question.