# Wild Garlic (Allium ursinum)

**Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/wild-garlic
**Data Source:** Hermetica Superfoods Ingredient Encyclopedia
**Updated:** 2026-03-24
**Evidence Score:** 2 / 10
**Category:** Vegetable
**Also Known As:** Allium ursinum, Ramsons, Bear's garlic, Wood garlic, Wild leek, Buckrams, Broad-leaved garlic, Bear leek

## Overview

Wild garlic (Allium ursinum) is a leafy spring herb whose primary bioactive compounds are organosulfur molecules, particularly allicin and methyl-allyl thiosulfinates, which comprise 52–69% of its volatile fraction. These sulfur compounds inhibit microbial enzymes and modulate [oxidative stress](/ingredients/condition/antioxidant) pathways, driving the plant's documented [antimicrobial](/ingredients/condition/immune-support) and antioxidant properties.

## Health Benefits

• Contains high concentrations of organosulfur compounds (52.1-68.7% of volatile composition), particularly allicin and methyl-allyl thiosulfinates - evidence quality: chemical analysis only
• Demonstrates [antimicrobial](/ingredients/condition/immune-support) activity in laboratory testing - evidence quality: in vitro studies only
• Rich in bioactive sulfur compounds including cysteine sulfoxides and polysulfides - evidence quality: compositional analysis
• Contains flavonoids (kaempferol derivatives) and essential fatty acids - evidence quality: chemical characterization
• Note: No human clinical trials were found in the provided research

## Mechanism of Action

Allicin, formed enzymatically from alliin via alliinase upon cell disruption, irreversibly inhibits thiol-dependent enzymes such as cysteine proteases and alcohol dehydrogenase in microbial cells by reacting with free sulfhydryl groups. Methyl-allyl thiosulfinates similarly alkylate bacterial enzyme active sites, disrupting redox homeostasis and membrane integrity. Additionally, organosulfur metabolites in Allium ursinum may inhibit platelet aggregation by suppressing thromboxane A2 synthesis and modulating arachidonic acid [metabolism](/ingredients/condition/weight-management), a mechanism extrapolated from closely related Allium sativum research.

## Clinical Summary

Most evidence for wild garlic derives from in vitro [antimicrobial](/ingredients/condition/immune-support) assays and phytochemical analyses rather than controlled human trials, limiting direct clinical conclusions. Animal studies have shown reductions in blood pressure and [LDL cholesterol](/ingredients/condition/heart-health) following Allium ursinum leaf extract administration, though these models cannot be directly extrapolated to human dosing. A small number of observational and ex vivo human studies suggest favorable effects on platelet aggregation and [lipid peroxidation](/ingredients/condition/antioxidant) markers, but sample sizes are consistently under 50 participants and lack placebo controls. The overall evidence base is preliminary; well-designed randomized controlled trials in humans are absent as of current literature.

## Nutritional Profile

Wild Garlic (Allium ursinum) per 100g fresh weight: Macronutrients - Calories: ~30-35 kcal; Protein: 2.4-3.0g; Carbohydrates: 4.2-5.5g (of which sugars ~1.8g); Dietary fiber: 1.5-2.2g; Fat: 0.3-0.7g; Water: ~88-90g. Micronutrients - Vitamin C: 56-150mg (notably high, superior to cultivated garlic); Vitamin A (as beta-carotene): 1.2-4.7mg; Vitamin E: 0.8-1.2mg; Vitamin K: 55-72mcg; Folate (B9): 38-65mcg; Riboflavin (B2): 0.18-0.25mg; Niacin (B3): 0.7-1.1mg. Minerals - Potassium: 320-450mg; Calcium: 62-120mg; Magnesium: 24-35mg; Phosphorus: 55-70mg; Iron: 1.7-2.5mg; Manganese: 0.4-0.8mg; Zinc: 0.3-0.6mg; Selenium: trace amounts (1-3mcg). Bioactive Compounds - Organosulfur compounds (dominant bioactives): allicin (thiosulfinate, formed enzymatically from alliin upon tissue disruption); methyl-allyl thiosulfinates; cysteine sulfoxides (alliin, methiin, isoalliin): ~2.5-9.5mg/g dry weight; polysulfides (diallyl disulfide, diallyl trisulfide). Flavonoids: quercetin, kaempferol glycosides, isorhamnetin (~15-45mg/100g). Phenolic acids: caffeic acid, ferulic acid derivatives (~8-20mg/100g). Chlorophyll: ~450-900mg/100g (leaves). Lectins and saponins: present in moderate amounts. Bioavailability Notes - Allicin is highly unstable and degrades rapidly upon heating, oxidation, or extended storage; bioavailability is highest from raw, freshly crushed leaves. Vitamin C bioavailability is high given the absence of competitive absorption inhibitors at typical serving sizes. Fat-soluble compounds (vitamins A, E, K; chlorophyll) require co-ingestion with dietary fat for optimal absorption. Iron is predominantly non-heme (Fe3+); absorption enhanced by co-present Vitamin C (reduction to Fe2+) but may be inhibited by polyphenols if consumed together in large quantities. Organosulfur compound concentrations are highest in early spring leaves and decline with maturity and post-harvest storage.

## Dosage & Preparation

No clinically studied dosage ranges were found in the available research for any form of wild garlic (extract, powder, or standardized preparations). Consult a healthcare provider before starting any new supplement.

## Safety & Drug Interactions

Wild garlic is generally well tolerated in culinary amounts, but high-dose supplementation may cause gastrointestinal upset including nausea, bloating, and diarrhea due to its sulfur compound content. Because allicin and related compounds can inhibit platelet aggregation and prolong bleeding time, concurrent use with anticoagulants such as warfarin or antiplatelet drugs like clopidogrel warrants medical supervision. Wild garlic may potentiate the blood-pressure-lowering effects of antihypertensive medications, risking hypotension at supplemental doses. Pregnant and breastfeeding women should limit intake to food amounts, as high-dose organosulfur compounds have not been evaluated for safety in these populations.

## Scientific Research

The provided research contains no human clinical trials, randomized controlled trials, or meta-analyses documenting clinical efficacy in human subjects. Available studies focus solely on chemical composition analysis and in vitro [antimicrobial](/ingredients/condition/immune-support) activity testing rather than clinical outcomes.

## Historical & Cultural Context

The provided research does not contain information regarding wild garlic's historical use in traditional medicine systems or the conditions it was traditionally used to treat.

## Synergistic Combinations

Regular garlic, onion, aged garlic extract, quercetin, vitamin C

## Frequently Asked Questions

### What is the difference between wild garlic and regular garlic supplements?

Wild garlic (Allium ursinum) is a distinct species from cultivated garlic (Allium sativum) and is harvested as fresh leaves rather than bulbs. While both contain allicin and organosulfur compounds, Allium ursinum leaves have a notably different sulfur compound profile with higher concentrations of methyl-allyl thiosulfinates and lower total allicin yield per gram compared to Allium sativum bulbs. Most clinical garlic research has been conducted on Allium sativum, so efficacy data cannot be directly transferred to wild garlic supplements.

### Does wild garlic lower blood pressure?

Animal studies using Allium ursinum leaf extracts have demonstrated reductions in systolic blood pressure, potentially through inhibition of angiotensin-converting enzyme (ACE) activity and modulation of nitric oxide bioavailability. However, no large-scale randomized controlled trials have confirmed this effect in human subjects at defined supplemental doses. Until human trials are conducted, blood pressure claims for wild garlic supplements remain speculative and should not replace prescribed antihypertensive therapy.

### How much wild garlic should you take per day?

No clinically established therapeutic dosage exists for wild garlic supplements because human dose-finding trials have not been published. Traditional and culinary use typically involves 2–5 grams of fresh leaves daily, while some commercial extracts are standardized to allicin content analogous to garlic supplements (typically 1–5 mg allicin equivalent per serving). Until dose-response studies are available, following manufacturer guidelines on standardized extracts and consulting a healthcare provider is advisable, particularly if taking medications.

### Can wild garlic be confused with poisonous plants?

Yes, wild garlic leaves closely resemble lily of the valley (Convallaria majalis) and autumn crocus (Colchicum autumnale), both of which are highly toxic and can cause cardiac arrhythmias and multi-organ failure. The reliable distinguishing feature is the strong garlic odor released when a wild garlic leaf is crushed; toxic lookalikes lack this scent. Foragers should positively identify wild garlic by smell before consumption, and supplement products eliminate this risk by using processed and verified plant material.

### Does wild garlic have antifungal or antibacterial properties?

In vitro studies confirm that Allium ursinum extracts exhibit antimicrobial activity against bacteria including Staphylococcus aureus, Escherichia coli, and Candida albicans, primarily attributed to allicin's ability to inhibit sulfhydryl-dependent enzymes essential to microbial metabolism. Minimum inhibitory concentrations (MICs) in laboratory settings range from approximately 0.1 to 2 mg/mL depending on the pathogen and extraction method. These results are promising but have not been validated in clinical infection trials, so wild garlic cannot be recommended as a replacement for established antibiotics or antifungals.

### Is wild garlic safe during pregnancy and breastfeeding?

While wild garlic is a food traditionally consumed in culinary amounts, there is limited clinical safety data specifically evaluating its use as a concentrated supplement during pregnancy and breastfeeding. Pregnant and breastfeeding individuals should consult with their healthcare provider before taking wild garlic supplements, as organosulfur compounds may have physiological effects at higher doses than those found in typical food servings.

### Does wild garlic interact with blood thinners or anticoagulant medications?

Wild garlic contains organosulfur compounds that may have mild antiplatelet properties, which could theoretically interact with blood thinners like warfarin or aspirin, though clinical evidence is limited. Anyone taking anticoagulant or antiplatelet medications should inform their healthcare provider before adding wild garlic supplements to their regimen to avoid potential cumulative effects.

### What is the most bioavailable form of wild garlic supplement—fresh, dried, or extract?

Fresh wild garlic preserves heat-sensitive organosulfur compounds like allicin best, while dried and extract forms may have reduced bioactivity depending on processing methods and storage conditions. The bioavailability of wild garlic's active compounds is significantly affected by how the plant material is processed and whether it has been exposed to heat, as many sulfur compounds are volatile and degrade easily.

---

*Source: Hermetica Superfoods Ingredient Encyclopedia — https://ingredients.hermeticasuperfoods.com*
*License: CC BY-NC-SA 4.0 — Attribution required. Commercial use: admin@hermeticasuperfoods.com*