Bhavaprakasha Nighantu, Haritakyadi Varga 1.1
Haritaki pathya abhaya — Haritaki is the first herb in the materia medica. It is called Pathya (that which keeps one on the path of health) because it is beneficial in all conditions without exception. The king of all medicines. The first entry in the Nighantu establishes the standard format: Sanskrit names, Rasa (taste), Guna (qualities), Virya (potency), Vipaka, and Karma (actions) documented for each substance.

Structure and scope

The Bhavaprakasha Nighantu is organised into Varga (categories) — each grouping substances with related properties: Haritakyadi Varga — classical herbs beginning with Haritaki; Guduchyadi Varga — herbs beginning with Guduchi, including Kutki, Kalmegh, and bitter herbs; Vatadi Varga — tree medicines; Oushadhi Varga — medicinal plants; Shatapushpadi Varga — aromatic herbs; Dhatu Varga — minerals and metals; Mamsa Varga — animal products (historical documentation); Dhanya Varga — grains; Shakha Varga — vegetables; Phala Varga — fruits; Harita Varga — leafy greens; Dugdha Varga — milk and dairy; Madya Varga — fermented preparations.

The documentation of food substances (grains, vegetables, fruits, dairy) in the same framework as medicinal herbs reflects the core Ayurvedic principle that food and medicine are not categorically distinct — they are the same substances at different dose and preparation levels.

Why Bhavaprakasha is the primary Dravyaguna reference

The Brihat Trayee texts (Charaka, Sushruta, Ashtanga Hridayam) document herbs in clinical context — in disease chapters and formulations. Bhavaprakasha documents every substance in isolation first — its complete pharmacological properties before any clinical application. This systematic single-substance documentation makes it the primary reference for identifying an herb's classical properties regardless of which disease context it appears in. Modern Ayurvedic education uses Bhavaprakasha as the primary Dravyaguna (pharmacology) textbook for this reason.

The commentary tradition
The standard teaching edition used across all Ayurvedic colleges: Bhavaprakasha Nighantu with the commentary of Dr. K.M. Chunekar, edited by Dr. G.S. Pandey — Chaukhamba Bharati Academy, Varanasi. Chunekar's commentary adds modern botanical identification (Linnean binomial names), chemical constituents known at the time of writing, and cross-references to API monographs where they exist. This edition is the primary reference for all Bhavaprakasha citations on this site.
Food documentation in Bhavaprakasha
The Dhanya (grain), Shakha (vegetable), Phala (fruit), and Dugdha (dairy) Varga sections are among the most practically useful classical documentation available. Each common food is assessed for its Rasa, Guna, Virya, and specific clinical indications and contraindications. This documentation is the classical basis for Ayurvedic dietary medicine — the understanding that Yava (barley) is specifically Medohara (fat-reducing), that Mudga (moong) is specifically the easiest legume for digestion, and that Saindhava (rock salt) is the only salt appropriate for daily use.