Ayurveda Codex›Srotas›Annavaha

Last verified: April 2026

Annavaha Srotas

अन्नवह श्रोतस् — Anna (food) + Vaha (carrying) + Srotas (channel)

Annavaha Srotas are the channels of food intake and initial digestion — from the mouth through the oesophagus to the stomach, where Jatharagni (the primary digestive fire) acts on incoming food. These are the first channels through which Ahara (food) enters the classical metabolic system.

Charaka Samhita, Vimanasthana 5.9
Amashayah sarvam vamoparitistham cha moola Annavaha Srotasam — The stomach and all structures on the left upper side are the root of the Annavaha channels. When these channels are obstructed, food is not properly transformed into Rasa; when they function in the wrong direction, vomiting occurs.

Classical documentation

Roots: Amashaya (stomach) and left side of the body (where the stomach sits)

Primary Dosha: Vata and Kapha — Samana Vata governs the digestive movement; Kledaka Kapha provides the gastric moisture

Classical conditions: Ajirna (indigestion), Anaha (abdominal distension), Chardi (vomiting), Atisara (diarrhoea), Grahani (malabsorption — the most complex Annavaha Srotas condition)

How these channels are impaired

Eating before the previous meal is digested (Vishamasana); eating incompatible foods (Viruddha Ahara); suppression of hunger; excessive eating; eating while distressed or distracted — all documented as producing Annavaha Srotas Dushti

Classical significance

The Annavaha Srotas corresponds to the gastrointestinal tract from mouth to stomach. The classical documentation of Grahani (malabsorption) as a primary Annavaha Srotas condition corresponds to modern small intestinal conditions including IBS, Crohn's disease, and small intestinal bacterial overgrowth — where the channel function of nutrient absorption is impaired.

Primary herbs for this Srotas
Ginger (Agni kindling), Bilva (Grahi — absorptive, for malabsorption), Chitraka (Deepana), Trikatu
The four types of Srotas impairment
Charaka Samhita documents four ways any Srotas can be impaired: Atipravritta (excessive flow — too much output); Sanga (obstruction — blockage stopping normal flow); Vimarga Gamana (flow in wrong direction — reflux, bleeding upward, etc.); Siragranthi (knotting/constriction — localised channel narrowing). These four apply to every Srotas — the specific disease produced depends on which channel is impaired and in which of these four ways.