# Vigna mungo (Black Gram)

**Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/vigna-mungo
**Data Source:** Hermetica Superfoods Ingredient Encyclopedia
**Updated:** 2026-03-31
**Evidence Score:** 2 / 10
**Category:** Legume
**Also Known As:** black gram, mash bean, urad dal, black lentil, mungo bean, woolly pyrol, black matpe bean, urd bean, minapa pappu, madhash, kalo maas

## Overview

Black gram (Vigna mungo) is a legume rich in polyphenolic compounds, flavonoids, and phenolic acids that provide antioxidant activity through [free radical scaveng](/ingredients/condition/antioxidant)ing mechanisms. The seed coat contains exceptionally high levels of calcium (1062.85 mg/100g), magnesium (440.41 mg/100g), and potassium (304.02 mg/100g).

## Health Benefits

• Antioxidant support through polyphenolic compounds, flavonoids, and phenolics that scavenge [free radical](/ingredients/condition/antioxidant)s (demonstrated in laboratory assays only)
• Mineral-rich nutrition providing calcium (1062.85 mg/100g), magnesium (440.41 mg/100g), and potassium (304.02 mg/100g) in seed coat (nutritional analysis only)
• High protein content up to 34.41% in some cultivars supporting dietary protein needs (compositional data only)
• Potential cholesterol-lowering effects noted in humans and animals (evidence quality not specified)
• High fiber content at 48.67% in seed coat supporting [digestive health](/ingredients/condition/gut-health) (compositional analysis only)

## Mechanism of Action

Black gram's polyphenolic compounds, including flavonoids and phenolic acids, neutralize [reactive oxygen species](/ingredients/condition/antioxidant) through electron donation and hydrogen atom transfer mechanisms. These antioxidant compounds help protect cellular membranes from oxidative damage by interrupting lipid peroxidation chain reactions. The high mineral content, particularly calcium and magnesium, supports enzymatic functions and cellular signaling pathways.

## Clinical Summary

Current evidence for black gram's health effects comes primarily from laboratory antioxidant assays demonstrating [free radical scaveng](/ingredients/condition/antioxidant)ing activity of polyphenolic extracts. Nutritional analysis studies have documented the high mineral content, particularly in seed coat preparations. No human clinical trials have been conducted to evaluate therapeutic effects or optimal dosing protocols. The evidence base remains limited to in vitro studies and nutritional composition data.

## Nutritional Profile

Black Gram (Vigna mungo) is a nutrient-dense legume with high protein content ranging from 22–34.41% dry weight depending on cultivar, making it one of the more protein-rich pulses. Carbohydrates constitute approximately 55–60% of dry weight, with dietary fiber at 4–5% (mix of soluble and insoluble fractions). Fat content is low at 1.5–2.0%. Key minerals are highly concentrated particularly in the seed coat: calcium ~1062.85 mg/100g (seed coat), magnesium ~440.41 mg/100g (seed coat), potassium ~304.02 mg/100g (seed coat), with whole seed values lower due to dilution by cotyledon mass. Iron content is approximately 7–8 mg/100g whole seed; zinc ~3–4 mg/100g. Phosphorus is present at ~380–400 mg/100g, though a significant portion is bound as phytic acid (phytate content ~1–2% dry weight), which reduces bioavailability of iron, zinc, and calcium by 20–50% unless soaking, sprouting, or fermentation is employed. B-vitamins present include thiamine (B1) ~0.42 mg/100g, riboflavin (B2) ~0.25 mg/100g, niacin (B3) ~1.5–2.0 mg/100g, and folate ~216–230 µg/100g. Bioactive compounds include polyphenols, flavonoids (notably vitexin and isovitexin), and phenolic acids concentrated in the seed coat, with total phenolic content reported at 2–5 mg GAE/g in laboratory assays. Tannins (~0.5–1.0% dry weight) and trypsin inhibitors are present as antinutritional factors but are substantially reduced by cooking. Protein digestibility is approximately 78–85% in cooked form. Starch is predominantly slowly digestible, contributing to a moderate glycemic index (~43–55 when cooked whole).

## Dosage & Preparation

No clinically studied dosage ranges have been established for Vigna mungo extracts, powders, or standardized forms as no human clinical trials have been conducted. Traditional consumption involves whole seeds or seed coat as food rather than measured supplement doses. Consult a healthcare provider before starting any new supplement.

## Safety & Drug Interactions

Black gram is generally recognized as safe when consumed as a food ingredient with no documented serious adverse effects. Individuals with legume allergies should exercise caution as cross-reactivity may occur. No specific drug interactions have been reported, though the high fiber content may affect absorption of certain medications if consumed in large quantities. Safety during pregnancy and lactation has not been specifically studied, though traditional dietary use suggests general safety.

## Scientific Research

No human clinical trials, randomized controlled trials, or meta-analyses on Vigna mungo were identified in the available research. The evidence is limited to compositional analyses, in-vitro [antioxidant](/ingredients/condition/antioxidant) assays (DPPH, SOD, H2O2), and unspecified observations of cholesterol-lowering effects in humans and animals without formal study designs or PMIDs provided.

## Historical & Cultural Context

Vigna mungo has been cultivated in India from ancient times as a highly prized legume, primarily valued as a food staple rather than for specific medicinal applications. While deeply integrated into South Asian cuisine and agriculture, detailed documentation of its use in traditional medicine systems like Ayurveda was not provided in the available research.

## Synergistic Combinations

Other legumes, turmeric, ginger, [digestive enzyme](/ingredients/condition/gut-health)s, probiotics

## Frequently Asked Questions

### How much calcium is in black gram?

Black gram seed coat contains 1062.85 mg of calcium per 100g, which is exceptionally high compared to most legumes. This makes it a significant plant-based calcium source for bone health support.

### What antioxidants are found in black gram?

Black gram contains polyphenolic compounds, flavonoids, and phenolic acids that demonstrate free radical scavenging activity in laboratory tests. These compounds are concentrated in the dark seed coat and contribute to the antioxidant potential.

### Is black gram safe for daily consumption?

Black gram is generally safe for daily consumption as part of a balanced diet with no documented serious side effects. However, individuals with legume allergies should avoid it due to potential cross-reactivity.

### What is the difference between black gram and other legumes?

Black gram has notably higher mineral content, particularly calcium and magnesium, compared to most other legumes. Its dark seed coat also contains unique concentrations of antioxidant polyphenolic compounds not found in lighter-colored legumes.

### Can black gram supplements interact with medications?

No specific drug interactions have been reported with black gram supplements. However, the high fiber content may potentially affect absorption of certain medications if consumed in large quantities, so timing separation may be advisable.

### How much protein does black gram contain per serving?

Black gram contains up to 34.41% protein by weight in certain cultivars, making it one of the most protein-dense legumes available. A typical 100g serving provides approximately 34g of protein, comparable to meat sources, which makes it valuable for vegetarian and vegan dietary protein needs. The exact protein content may vary depending on the cultivar and growing conditions.

### What is the bioavailability of minerals in black gram, and how can it be improved?

Black gram contains significant minerals like magnesium (440.41 mg/100g) and potassium (304.02 mg/100g), though bioavailability may be limited by the presence of anti-nutritional factors common in legumes. Soaking and cooking black gram before consumption can reduce phytic acid and increase mineral absorption. Combining black gram with vitamin C sources may further enhance mineral bioavailability.

### Is black gram suitable for people with specific dietary restrictions or health conditions?

Black gram is naturally free from common allergens and gluten, making it suitable for most dietary restrictions including celiac disease and vegan diets. However, individuals with legume sensitivities or those taking certain medications affecting kidney function should consult a healthcare provider before adding black gram supplements to their routine. Its high fiber and mineral content makes it particularly beneficial for those seeking nutrient-dense plant-based protein sources.

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