Urad Dal
Vigna mungo
Also known as: Black Gram · Mash (Punjabi) · Ulutham Paruppu (Tamil) · Minapappu (Telugu)
The fermentation dal of India — the one that makes idli and dosa crispy, and is pharmacologically active for joint health.
Protein
25g / 100g
Phosphorus
385mg / 100g
Fermentation Role
Lactic acid bacteria substrate for idli/dosa
Ayurvedic Use
Primary Vata-Pacifying legume
About
What is Urad Dal?
Urad dal is arguably the most culturally important pulse in India — it is the one that makes idli and dosa possible. Its high mucilage content creates the sticky batter that ferments with rice to produce the lactic acid bacteria that give idli its rise and tang. Nutritionally, it is among the highest-protein dals (25g) and has a documented role in joint and bone health through its phosphorus, calcium, and potassium content. Ayurveda prescribes it as a Brimhana (nourishing) food for Vata disorders including joint pain and arthritis.
Nutritional Profile
What’s inside?
Health Applications
Why it matters
Bone Health
High phosphorus (385mg) and calcium (138mg) support bone mineralisation. Potassium reduces urinary calcium excretion.
Gut Health
Fermented urad batter (idli/dosa) provides live lactic acid bacteria + prebiotic fibre. The fermentation doubles B12 precursors.
Anaemia
7.6mg iron per 100g — among the highest of any dal. Pair with tamarind (Vitamin C) in Sambar to maximise absorption.
Ancient Wisdom
In Ayurveda
Dosha Effect
Vata-pacifying (Guru, Snigdha — heavy and unctuous)
Guna (Quality)
Guru (heavy), Snigdha (unctuous), Madhura (sweet post-digestion)
Classical Note
The primary Vata-Pacifying legume in classical Ayurveda. Prescribed for joint disease, emaciation, and sexual debility. Avoid in Kapha types — too heavy and mucilaginous.
Origin Story
From the field
All-India (primary: Punjab, Tamil Nadu) · Pan-India
Urad dal and idli-dosa culture are inseparable. The fermentation process — urad dal ground with parboiled rice, left to ferment overnight — is a 2,000-year-old biotechnology that predates modern understanding of lactic acid fermentation. In Tamil Nadu and Karnataka, the ratio of urad to rice in idli batter is a household secret passed mother-to-daughter for generations. In Punjab, Mah di Dal (whole black gram cooked slowly with ghee and ginger) is a winter staple for joint health.
There are 23 ingredients in the Field Guide.