# Allium jesdianum (Persian Shallot)

**Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/allium-jesdianum
**Data Source:** Hermetica Superfoods Ingredient Encyclopedia
**Updated:** 2026-04-04
**Evidence Score:** 2 / 10
**Category:** Vegetable
**Also Known As:** Persian shallot, Yazdi onion, Zagros mountain onion, Iranian endemic shallot, Chaharmahal shallot

## Overview

Allium jesdianum, the Persian shallot, contains organosulfur compounds and flavonoids that drive its antioxidant and [immunomodulatory](/ingredients/condition/immune-support) properties. Its ethanol extracts scavenge [free radical](/ingredients/condition/antioxidant)s via hydrogen atom transfer and stimulate macrophage nitric oxide production, suggesting potential [anti-inflammatory](/ingredients/condition/inflammation) and immune-supportive activity.

## Health Benefits

• Antioxidant activity: Ethanol extracts demonstrated [free radical scaveng](/ingredients/condition/antioxidant)ing in DPPH assays, with leaf extracts showing superior activity to bulb extracts (in vitro evidence only)
• [Immune system](/ingredients/condition/immune-support) support: Extracts stimulated nitric oxide production by macrophages (77.6-79.4 µM nitrite at 0.5-1 mg/mL, P < 0.01) in laboratory studies
• Antifungal properties: Hydroalcoholic extract showed anti-Candida albicans activity in vitro
• Antibacterial effects: Extracts demonstrated activity against four bacterial species in serial dilution assays (laboratory evidence only)
• Traditional kidney and cold support: Historically used in Iranian medicine, though no clinical trials validate these uses

## Mechanism of Action

Organosulfur compounds in Allium jesdianum, including thiosulfinates and allicin-related derivatives, inhibit lipid peroxidation and scavenge [reactive oxygen species](/ingredients/condition/antioxidant) via hydrogen atom transfer and single electron donation pathways. Flavonoid constituents such as quercetin and kaempferol glycosides further contribute to DPPH radical neutralization by donating phenolic hydroxyl groups. Macrophage stimulation occurs through pattern recognition receptor activation, upregulating inducible nitric oxide synthase (iNOS) and increasing nitrite output to 77.6–79.4 µM at doses of 0.5–1 mg/mL.

## Clinical Summary

Available evidence for Allium jesdianum is limited entirely to in vitro laboratory studies, with no published human clinical trials or animal intervention studies identified. Ethanol leaf extracts demonstrated stronger DPPH [free radical scaveng](/ingredients/condition/antioxidant)ing activity than bulb extracts, suggesting leaf-specific phytochemical concentrations may be relevant to formulation. Macrophage nitric oxide stimulation data (77.6–79.4 µM nitrite at 0.5–1 mg/mL) was generated in cell culture models, which cannot be directly extrapolated to human immune response. The current evidence base is preliminary and insufficient to establish effective dosages, bioavailability, or clinical outcomes in humans.

## Nutritional Profile

Allium jesdianum (Persian Shallot) shares a broadly similar nutritional framework with other Allium species, though species-specific analytical data remain limited. Based on available phytochemical analyses: **Macronutrients (estimated per 100 g fresh bulb):** Moisture ~75–85%; Carbohydrates ~10–15 g (primarily fructans and fructooligosaccharides); Protein ~1.5–2.5 g; Fat <0.5 g; Dietary fiber ~1.5–3 g (including inulin-type fructans that act as [prebiotic](/ingredients/condition/gut-health)s). **Sulfur-containing compounds (key bioactives):** Rich in thiosulfinates, S-alk(en)yl-L-cysteine sulfoxides (alliin and methiin analogs), and γ-glutamyl cysteine peptides — characteristic of the Allium genus. These organosulfur compounds are responsible for much of the documented [antioxidant](/ingredients/condition/antioxidant) and antimicrobial activity. Concentrations of total thiosulfinates are estimated in the range of 2–6 mg/g dry weight, though precise quantification specific to A. jesdianum is sparse. **Phenolic compounds:** Total phenolic content reported at approximately 15–40 mg gallic acid equivalents (GAE) per gram of dry extract (varies by plant part; leaves > bulbs). Flavonoids identified include quercetin and kaempferol glycosides. Total flavonoid content approximately 5–15 mg quercetin equivalents per gram dry extract. **Saponins:** Steroidal saponins (furostanol and spirostanol glycosides) have been isolated from bulbs, which are relatively uncommon among culinary Allium species and may contribute to the [immunomodulatory](/ingredients/condition/immune-support) and antifungal properties. **Vitamins (estimated, extrapolated from closely related Allium spp.):** Vitamin C ~8–15 mg/100 g fresh weight; B-vitamins including B6 (pyridoxine) ~0.1–0.3 mg/100 g and folate (B9) ~15–35 µg/100 g; trace amounts of vitamin K and vitamin E. **Minerals (estimated per 100 g fresh bulb):** Potassium ~200–350 mg; Phosphorus ~30–60 mg; Calcium ~20–40 mg; Magnesium ~10–20 mg; Iron ~0.5–1.5 mg; Zinc ~0.3–0.6 mg; Selenium in trace amounts (soil-dependent); Sulfur content notably high at ~50–100 mg owing to organosulfur biochemistry. **Other bioactives:** Lectins have been isolated from A. jesdianum bulbs with documented hemagglutinating activity. Fructooligosaccharides serve as prebiotic substrates for beneficial gut microbiota. **Bioavailability notes:** Organosulfur compounds are enzymatically generated upon tissue disruption (alliinase-mediated conversion of cysteine sulfoxides), so crushing or chopping enhances their release. These compounds are moderately volatile and heat-labile — cooking reduces thiosulfinate content by 30–70% depending on duration and method. Flavonoid glycosides require intestinal hydrolysis for absorption; quercetin bioavailability is estimated at 20–50% in glycoside form. Steroidal saponins have generally low oral bioavailability but may enhance membrane permeability of co-consumed compounds. Mineral bioavailability may be modestly reduced by the presence of fructans and oxalates, though fructans paradoxically enhance calcium and magnesium absorption in the colon via prebiotic fermentation. Note: Most quantitative values are approximations derived from limited direct analyses of A. jesdianum combined with data from closely related species (A. stipitatum, A. hirtifolium, A. cepa). Species-specific comprehensive nutritional profiling remains an area requiring further research.

## Dosage & Preparation

No clinically studied dosage ranges have been established for human use. Laboratory studies used extract concentrations of 0.5-1 mg/mL, but these cannot be translated to human dosing recommendations. Consult a healthcare provider before starting any new supplement.

## Safety & Drug Interactions

No human safety data or formal toxicology studies have been published specifically for Allium jesdianum, making definitive risk characterization impossible at this time. By analogy with closely related Allium species such as onion and garlic, potential concerns include gastrointestinal irritation, platelet aggregation inhibition, and additive effects with anticoagulant or antiplatelet medications such as warfarin or aspirin. Individuals with known Allium or Liliaceae family allergies should exercise caution. Pregnant or breastfeeding individuals should avoid supplemental doses due to the complete absence of reproductive safety data.

## Scientific Research

No human clinical trials, randomized controlled trials, or meta-analyses were identified for A. jesdianum in the available literature. All current evidence comes from in vitro laboratory studies examining [antioxidant](/ingredients/condition/antioxidant), [immunomodulatory](/ingredients/condition/immune-support), and antimicrobial properties.

## Historical & Cultural Context

A. jesdianum has been used in traditional Iranian medicine for treating colds and kidney problems. Indigenous populations in southwestern Iran's Chaharmahal va Bakhtiari province have historically utilized both the leaves and bulbs of this endemic species.

## Synergistic Combinations

Garlic extract, Quercetin, Vitamin C, Elderberry, Echinacea

## Frequently Asked Questions

### What is Persian shallot (Allium jesdianum) used for?

Persian shallot is studied primarily for its antioxidant and immune-modulating properties. In vitro research shows its ethanol extracts scavenge free radicals and stimulate macrophage nitric oxide production at concentrations of 0.5–1 mg/mL, though no human trials have confirmed these effects clinically.

### Are Persian shallot leaf extracts stronger than bulb extracts?

Yes, based on in vitro DPPH assay data, leaf extracts of Allium jesdianum demonstrated superior free radical scavenging activity compared to bulb extracts. This difference is likely due to higher concentrations of flavonoids and organosulfur compounds accumulated in the leaf tissue, though this has not been confirmed in human studies.

### Does Persian shallot interact with blood thinners?

No direct drug interaction studies exist for Allium jesdianum, but organosulfur compounds common to the Allium genus are known to inhibit platelet aggregation and may potentiate anticoagulants such as warfarin or antiplatelet drugs like aspirin and clopidogrel. Anyone on blood-thinning medications should consult a healthcare provider before using Persian shallot supplements.

### What compounds in Persian shallot provide antioxidant effects?

The primary antioxidant compounds in Allium jesdianum are organosulfur derivatives (including thiosulfinates related to allicin) and flavonoids such as quercetin and kaempferol glycosides. These molecules donate hydrogen atoms or electrons to neutralize reactive oxygen species, as demonstrated in DPPH radical scavenging assays conducted on ethanol extracts.

### Is there clinical evidence supporting Persian shallot supplements?

Currently, all published research on Allium jesdianum is limited to in vitro cell and extract studies, with no human clinical trials or controlled animal studies available. While the in vitro data is promising for antioxidant and immune activity, no clinically validated dosage, bioavailability, or therapeutic outcome has been established for human supplementation.

### What is the difference between Persian shallot bulb and leaf extracts in terms of potency?

Persian shallot leaf extracts demonstrate superior antioxidant activity compared to bulb extracts, as shown by DPPH free radical scavenging assays in laboratory studies. However, current evidence is limited to in vitro testing, and human studies comparing bioavailability and efficacy between these forms are lacking. The practical implications for supplement effectiveness remain unclear without clinical validation.

### Is Persian shallot safe to use alongside anticoagulant medications like warfarin?

Persian shallot may interact with blood thinners and anticoagulant medications due to its bioactive compounds, though specific interaction mechanisms require further investigation. Individuals taking warfarin, apixaban, or other anticoagulants should consult their healthcare provider before adding Persian shallot supplements to avoid potential bleeding complications. Medical supervision is recommended to monitor for adverse interactions.

### Can dietary sources of Persian shallot provide the same immune-supporting benefits as supplements?

Whole Persian shallots contain the same bioactive compounds that stimulate immune responses in laboratory studies, though typical dietary amounts may provide lower concentrations than standardized extracts. Research showing immune benefits (such as nitric oxide production by macrophages) used isolated extracts at 0.5–1 mg/mL concentrations, which would be difficult to achieve through food consumption alone. Supplemental forms may offer more consistent dosing, but whole-food sources remain nutritionally valuable as part of a balanced diet.

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*Source: Hermetica Superfoods Ingredient Encyclopedia — https://ingredients.hermeticasuperfoods.com*
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