# Samudra Lavana

> Samudra Lavana is a salt or alkali preparation used in Ayurveda. An absence here means we could not identify the source, not that no work exists.

## Names and identification

| Language | Name |
|----------|------|
| English | [Samudra Lavana](/herb/samudra-lavana/) Sea Salt |

## Key Phytochemical Constituents

- Sodium chloride (NaCl) - 85-90%
- [Magnesium](/glossary/compounds-l-o/#magnesium) chloride and sulfate
- Calcium sulfate
- [Potassium](/glossary/compounds-o-q/#potassium) chloride
- Trace minerals: iron, zinc, [manganese](/glossary/compounds-l-o/#manganese), [iodine](/glossary/compounds-g-l/#iodine)
- Bicarbonates
- Bromide (trace)
- [Strontium](/glossary/compounds-q-t/#strontium) (trace)

## How does it work?

- [Laxative](/reference/laxative/)/purgative action: Magnesium salts draw water into the intestinal lumen through osmotic effect, promoting bowel movements and relieving constipation
- Digestive stimulation: Saline taste triggers gastric acid and enzyme secretion; slightly heating potency enhances Agni but may aggravate Pitta
- Colic relief (Shula Prashamana): Magnesium sulfate component has smooth muscle relaxant effect on intestinal and biliary smooth muscle, relieving spasmodic pain
- Mild alkali properties: Bicarbonate content provides mild antacid effect, neutralizing excess gastric acid

## Which traditional uses are supported by research?

- Virechana support (purgation therapy): Osmotic laxative mechanism of magnesium salts validates traditional use as a mild purgative in Ayurvedic Panchakarma support
- Shula (colic pain): Magnesium-mediated smooth muscle relaxation provides scientific basis for traditional anti-colic application
- Deepana (digestive stimulant): Salt-mediated gastric acid stimulation and enzyme activation confirmed by modern physiology

## What do recent clinical trials show?



*3 further claims previously listed here could not be traced to a published paper and have been removed. An absence here means we could not identify the source, not that no work exists.*

## Recent safety updates

- Aggravates Pitta and Kapha doshas when used excessively; not recommended for daily cooking in Pitta constitutions per Ayurvedic texts
- Microplastic contamination in sea salt is a growing concern; studies have found microplastic particles in 90% of commercial sea salts globally
- Daily intake should not exceed 2.3 grams; higher intake significantly increases hypertension and cardiovascular disease risk
- Iodine content is variable and unreliable; should not be sole dietary salt source in iodine-deficient populations

## What is it made of?

### Key Active Markers

- Magnesium
- Potassium
- Manganese
- Iodine
- Strontium
- Sodium chloride 
- Calcium sulfate
- 
- Trace minerals

**Analytical Methods:** HPLC fingerprinting, TLC (identity), LC-MS/MS (marker quantification)

## Dosage forms and preparation

**Dosage Forms:** Sea salt crystal/powder

**Standard Dosage:** As dietary salt; medicinal: 1–3 g

**Bioavailability:** Good; natural marine mineral profile

**Optimal Timing:** With meals; specific formulations as directed

**Standardized Extract:** Unrefined sea salt

**Shelf Life:** Indefinite

**Storage:** Dry, airtight container

**Marker Compounds:** Sodium chloride (85–90%), Magnesium, Potassium, Calcium, Marine trace minerals

**Quality Parameters:** NaCl >85%, heavy metals within limits, no marine pollutants, iodine content as labeled

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Canonical version of this page: https://nighantu.ageayurveda.com/herb/samudra-lavana/

## Sources

- Amidha Ayurveda Herb Database (700+ herbs, CC-BY-4.0)
- Web research (clinical trials, WHO monographs, safety databases)
- Ayurvedic Pharmacopoeia of India

Published by Age Ayurveda in the Nighantu. Educational reference only, not medical advice.
Incorporates material from the Amidha Ayurveda Herb Database under CC BY 4.0.