Rasa (रस)

Rasa refers to the taste of a substance, which is the first and most immediate pharmacological action on the body. There.

Ayurvedic Principles (Siddhanta Kosha) 1 min read
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Sanskrit Verse

स्वाद्वम्ललवणतिक्तकटुकषायाः रसाः।

— (Charaka Samhita, Sutrasthana 26/8)

Explanation

Rasa refers to the taste of a substance, which is the first and most immediate pharmacological action on the body. There are six primary tastes (Rasas): Madhura (Sweet), Amla (Sour), Lavana (Salty), Katu (Pungent), Tikta (Bitter), and Kashaya (Astringent). Each taste is composed of a unique combination of the five elements (Pancha Mahabhutas) and has a specific effect on the Doshas.

Clinical Importance

Ayurvedic dietetics and pharmacology are based on the principle of Rasa. Foods and herbs are prescribed based on their taste to either pacify or aggravate specific Doshas. For example, sweet taste pacifies Vata and Pitta but aggravates Kapha.