Abstract

Dr. Meena Kashinath Khot*

ABSTRACT

Background: Ayurveda describes nutrition as a dynamic process extending from digestion and transformation of food to distribution and tissue nourishment. Rasadhatu occupies the first position among the seven Dhatus and is described in relation to Ahararasa, Dhatu Poshana, Rasavaha Srotas and the maintenance of bodily function. Contemporary physiology, meanwhile, recognizes plasma and extracellular fluid as transport and regulatory compartments that distribute nutrients, hormones, electrolytes and metabolic products. The relationship between these frameworks requires careful interpretation rather than direct anatomical equivalence. Objective: To critically review the physiological significance of Rasadhatu in Ayurvedic nutrition and examine areas of functional correspondence with contemporary physiology while distinguishing textual description from modern interpretation. Materials and Methods: A narrative conceptual review was prepared from the uploaded manuscript and its cited classical framework, supplemented by contemporary peer-reviewed and authoritative biomedical sources identified through PubMed/NCBI and Ayurveda journals. The analysis focused on Ahararasa, Rasadhatu, Rasavaha Srotas, Dhatvagni, Dhatu Poshana Nyaya, fluid distribution and nutrient transport. Claims were framed as textual observations, functional interpretations or contemporary physiological facts, as appropriate. Results: The classical material positions Rasadhatu as a nutritive and distributive component arising in association with the processing of food and participating in nourishment of subsequent Dhatus. Dhatu Poshana Nyaya offers complementary explanatory models involving transformation, distribution and selective utilization. Contemporary physiology supports functional parallels with circulating and extracellular fluid compartments, particularly for nutrient transport, chemical signaling and fluid homeostasis. However, available evidence does not establish that Rasadhatu is anatomically identical to plasma, lymph or any single modern compartment. Conclusion: Rasadhatu can be scientifically discussed as a broader Ayurvedic physiological construct related to nourishment, distribution and maintenance. A cautious integrative model is more defensible than a one-to-one biomedical mapping. Future research should operationalize Ayurvedic constructs into measurable variables without prematurely reducing them to modern anatomical entities.