Plant Comparison

Garlic vs Japanese knotweed

A side-by-side comparison of two medicinal plants — every documented constituent, action, use, safety note and cited source, assembled automatically from the Omnia Sana database.

First plant
Second plant
Show:
Plant AGarlicAllium sativumAmaryllidaceaeFull monograph →
Plant BJapanese knotweedReynoutria japonicaPolygonaceaeFull monograph →

At a glance

Garlic and Japanese knotweed: they share 5 indicated uses (arthritis / joint pain, cancer (anticancer research), cardiovascular / heart health, …); 3 pharmacological actions in common.

GarlicJapanese knotweed
Constituents14
Pharmacological actions73
Indicated uses115
Safety notes22
Cited sources4014
Indicated uses
Only Garlic
Blood sugar / diabetes supportCold & fluImmune supportInfection (general)Metabolic supportWounds
Shared (5)
Arthritis / joint painCancer (anticancer research)Cardiovascular / heart healthInflammation (general)Skin irritation
Only Japanese knotweed
none
Pharmacological actions
Only Garlic
Antidiabetic (blood-sugar lowering)AntifungalAntimicrobialImmunomodulator / immune support
Shared (3)
Anti-inflammatoryAnticancer (preclinical)Antioxidant
Only Japanese knotweed
none

Evidence face-off — shared uses

ConditionGarlicJapanese knotweedVerdict
Arthritis / joint pain9/102/10Stronger for Garlic
Cancer (anticancer research)5/102/10Stronger for Garlic
Cardiovascular / heart health10/101/10Stronger for Garlic
Inflammation (general)9/107/10Stronger for Garlic
Skin irritation9/101/10Stronger for Garlic

Evidence scores (1–10) are computed from the tier of each cited source. “Comparable” means the two scores are within one point. Follow a score to its detailed sources.

Key Constituents

Allicin and organosulfur compounds (ajoene, S-allyl-cysteine)[1, 2, 6, 7, 8]

Allicin (diallyl thiosulfinate), formed enzymatically when raw garlic is crushed, together with ajoene and the aged-garlic compound S-allyl-cysteine, are the principal bioactives behind garlic's antimicrobial and cardiovascular effects — acting partly by raising nitric oxide and by targeting microbial thiol-containing enzymes.

Allicin / organosulfur thiosulfinatesOrganosulfur compounds
Stilbenes (resveratrol, piceid)[1, 6]

Considered the principal bioactive constituents, responsible for much of the antioxidant, anti-inflammatory and cardioprotective activity attributed to this root.

Anthraquinones (emodin, physcion)[1]

Emodin has laxative and anti-inflammatory activity at typical concentrations but can cause gastrointestinal upset at high doses.

Anthraquinones
Polysaccharides[5]

Studied for immunomodulatory and other bioactivities.

Polysaccharides
Phenolic glycosides[8]

Minor phenolic constituents of the rhizome.

GlycosidesPhenolic compounds

Pharmacological Actions

Anti-inflammatory[2, 9, 10, 13, 14, 15, 16, 17]
Anticancer (preclinical)[16, 18, 19, 20, 21, 22]

Garlic organosulfur compounds (allicin, diallyl trisulfide, ajoene, S-allylcysteine) induce apoptosis and cell-cycle arrest and inhibit proliferation, invasion and metastasis across leukaemia, breast, colon and other cancers (preclinical); a randomized trial found garlic supplementation reduced gastric-cancer mortality.

Antidiabetic (blood-sugar lowering)[1, 3, 9, 10, 13, 14, 15, 16, 17]
Antifungal[8, 9, 10, 13, 14, 15, 16]
Antimicrobial[1, 2, 4, 8, 9, 10, 13, 14, 15, 16, 23]
Antioxidant[1, 2, 7, 9, 10, 13, 14, 15, 16]
Immunomodulator / immune support[2, 3, 9, 10, 13, 14, 15, 16, 24]
Anti-inflammatory[1, 2, 3, 5, 6, 9, 11, 12, 13]
Anticancer (preclinical)[1, 3, 6, 7, 11, 12, 13]
Antioxidant[1, 3, 5, 6, 11, 12, 13]

Traditional & Indicated Uses

Arthritis / joint pain[9, 10, 13, 14, 15, 16, 17]Strong · 9/10

inferred from anti-inflammatory action

Evidence: 9
Label: Arthritis / joint pain
Blood sugar / diabetes support[3, 9, 10, 13, 14, 15, 16, 17]Strong · 9/10

inferred from antidiabetic action

Evidence: 9
Label: Blood sugar / diabetes support
Cancer (anticancer research)[16, 18, 19, 20, 21, 22]Moderate · 5/10

Garlic and its organosulfur compounds show broad preclinical anticancer/chemopreventive activity (apoptosis, cell-cycle arrest, anti-invasion); in the randomized Shandong Intervention Trial, 7 years of garlic supplementation significantly reduced gastric-cancer mortality over 22-year follow-up (preclinical + RCT).

Evidence: 5
Label: Cancer (anticancer research)
Cardiovascular / heart health[4, 6, 7, 9, 10, 13, 14, 15, 16, 17, 24]Strong · 10/10
Evidence: 10
Label: Cardiovascular / heart health
Cold & flu[9, 10, 13, 14, 15, 16, 24]Strong · 9/10

inferred from immunomodulator action

Evidence: 9
Label: Cold & flu
Immune support[9, 10, 13, 14, 15, 16, 24]Strong · 9/10
Evidence: 9
Label: Immune support
Infection (general)[8, 9, 10, 13, 14, 15, 16]Good · 8/10

inferred from antifungal action

Evidence: 8
Label: Infection (general)
Inflammation (general)[9, 10, 13, 14, 15, 16, 17]Strong · 9/10

inferred from anti-inflammatory action

Evidence: 9
Label: Inflammation (general)
Metabolic support[9, 10, 13, 14, 15, 16, 17]Strong · 9/10

inferred from antidiabetic action

Evidence: 9
Label: Metabolic support
Skin irritation[9, 10, 13, 14, 15, 16, 17]Strong · 9/10

inferred from anti-inflammatory action

Evidence: 9
Label: Skin irritation
Wounds[8, 9, 10, 13, 14, 15, 16, 23]Good · 8/10

inferred from antimicrobial action

Evidence: 8
Label: Wounds
Arthritis / joint pain[9, 11, 12, 13]Traditional · 2/10

inferred from anti-inflammatory action

Evidence: 2
Label: Arthritis / joint pain
Cancer (anticancer research)[7]Traditional · 2/10

inferred from anticancer action

Evidence: 2
Label: Cancer (anticancer research)
Cardiovascular / heart health[6, 11, 12, 13]Traditional · 1/10
Evidence: 1
Label: Cardiovascular / heart health
Inflammation (general)[2, 11, 12, 13]Good · 7/10

inferred from anti-inflammatory action

Evidence: 7
Label: Inflammation (general)
Skin irritation[11, 12, 13]Traditional · 1/10

inferred from anti-inflammatory action

Evidence: 1
Label: Skin irritation

Safety, Cautions & Contraindications

Safety note[9, 10, 13, 14, 15, 16]Caution

Garlic is generally very safe at culinary and supplemental doses for most healthy adults. Raw garlic contains allicin (formed when crushed) at concentrations that can irritate the gastrointestinal tract — nausea, heartburn, flatulence, and diarrhoea are the most common side effects, especially with large amounts of raw garlic on an empty stomach. Garlic may inhibit platelet aggregation and enhance anticoagulant effects of warfarin — use caution with blood-thinning medications, especially before surgery (stop 7–10 days prior). May lower blood pressure and blood sugar — caution when combined with antihypertensive or antidiabetic medications. Topical raw garlic can cause chemical burns (contact dermatitis) and should not be applied undiluted to skin for prolonged periods. Odour (from allicin metabolites) affects breath and perspiration. Pregnancy: culinary amounts safe; avoid medicinal-dose supplements due to blood-thinning risk (National Center for Complementary and Integrative Health, 2021).

Safety note[9, 10, 13, 14, 15, 16, 25]Caution

Duke (2002) rates garlic as +++ with exceptional clinical evidence (score 3) for antiseptic activity, and score 2 for anti-aggregant (antiplatelet), antiatherosclerotic, antiatherogenic, antibacterial, and antimycotic effects — among the most clinically validated herbal medicines. Commission E approves garlic for arteriosclerosis prevention and elevated blood lipids. Dose: 4 g (1 clove) fresh garlic daily, or 300 mg standardized dry powder extract (1.3% allicin) three times daily. Important interaction: garlic significantly potentiates anticoagulant medications (warfarin, aspirin) due to its anti-aggregant effects; use with caution in patients on blood thinners (Duke, 2002).

Safety note[11, 12, 13]Caution

Japanese knotweed root contains resveratrol and emodin; high doses of emodin may cause GI discomfort and have laxative effects. Not recommended during pregnancy (emodin has potential teratogenic effects in animal studies). May interact with anticoagulants and antiplatelet medications. Quality control of commercial preparations is important as invasive weed extracts vary significantly.

Safety note[11, 12, 13, 14]Info

Duke (2002) rates Japanese knotweed (listed as Hu-Zhang, Fallopia japonica) as +++ and highlights its rich content of resveratrol and emodin. Experimental evidence (score 1) supports COX-2 inhibitory, antioxidant, anti-inflammatory, hepatoprotective, and lipid-lowering activities — largely attributed to resveratrol. Duke notes its use in traditional Chinese medicine for fractures, burns, abscesses, and gynecological conditions. No significant clinical trials were available at time of publication, but resveratrol's biological activity is well-documented in vitro (Duke, 2002).

External Ids

Gbif: 2856681
Wikidata: Q23400
Gbif: 2889173
Wikidata: Q18421053

Botanical Description

Bulbous perennial herb usually grown as an annual, forming an underground compound bulb ('head') of several angular cloves wrapped in papery white to purplish skin. The leaves are flat, narrow and strap-shaped, greyish-green, arising from the bulb. A tall, leafless flowering stem (scape) may rise from the bulb bearing a rounded umbel of small pink-white flowers, often mixed with small bulbils, though cultivated garlic rarely sets true seed.[1]

Height: 30-100 cm (flowering scape)
Habit: Bulbous perennial herb, usually grown as an annual
Leaves: Flat, narrow, strap-shaped, greyish-green
Flowers: Small pink-white flowers in a rounded umbel, often mixed with bulbils; true seed is rare in cultivated garlic
Stem: Tall, leafless flowering scape when present
Root: Fibrous roots below a compound bulb of several cloves
Fruit: Rarely sets true seed; propagated mainly by cloves
Flowering Period: Summer

Vigorous, invasive rhizomatous perennial (Polygonaceae) with hollow, bamboo-like, jointed stems 1-3 m tall (occasionally taller), speckled reddish-purple. Leaves are broad, heart- to shovel-shaped with a flat base. Abundant sprays of small, creamy-white flowers appear in late summer, followed by small winged fruit.[6]

Height: 1-3 m (occasionally to 4 m+)
Habit: Vigorous, invasive, rhizomatous perennial
Leaves: Broad, heart- to shovel-shaped, flat-based
Flowers: Small, creamy-white, in abundant sprays
Stem: Hollow, bamboo-like, jointed, reddish-purple speckled
Root: Extensive, deep, aggressively spreading rhizome
Fruit: Small winged achenes
Flowering Period: August-October

Habitat

Believed to originate in Central Asia; cultivated worldwide in temperate and subtropical climates as a garden and field crop, thriving in well-drained, sunny sites.[1]

Native to East Asia (Japan, China, Korea), now a notorious invasive species across Europe and North America, growing in disturbed ground, riverbanks, roadsides and waste land, spreading aggressively via an extensive rhizome network.[6]

Harvesting

Bulbs are lifted in mid- to late summer once the leaves have yellowed and died back, then cured (dried) in a warm, airy place before storage; young leaves and immature flower scapes ('sprouts') can be cut earlier in the season.

Parts: Leaf, Root, Young sprouts
Season: Mid- to late summer for the bulb; spring for young leaves and sprouts

The rhizome/root, the main medicinal part, is dug in autumn or winter when resveratrol content is highest; young spring shoots (stems) are also edible and used. Strict containment is required when harvesting, given the plant's severe invasiveness.[6]

Parts: Root, Stem
Season: Root in autumn/winter; young stems in spring

Traditional Uses

Garlic has one of the longest continuous medicinal histories of any plant, used across many traditional systems (Ayurvedic, Chinese, Egyptian, Greco-Roman and European folk medicine) as an antimicrobial, cardiovascular and respiratory remedy, for colds and infections, and as a digestive and immune tonic. This traditional reputation is now among the most extensively clinically studied of all herbal medicines.[1, 9]

Known as Hu Zhang in Traditional Chinese Medicine, Japanese knotweed root has a centuries-old use for inflammation, infections, jaundice and menstrual complaints. Modern interest centres on its resveratrol and emodin content, now studied (as Polygonum cuspidatum extract) for antioxidant, anti-inflammatory, cardioprotective and hepatoprotective activity, and more recently for supportive use in acute respiratory infections.[2, 3, 6]

Preparations

Fresh clove[1]

Fresh clove crushed or chopped and left to stand briefly (activating allicin formation) before eating raw or lightly cooked.

Standardised extract/powder[1, 10]

Dried garlic powder standardised to allicin content, or aged garlic extract, taken as capsules or tablets.

Decoction[6]

Dried rhizome simmered in water, the classic Traditional Chinese Medicine preparation.

Standardised resveratrol extract (capsule)[1]

The modern commercial supplement form, standardised for resveratrol content.

Dosage

Fresh clove[11]

The WHO monograph on Bulbus Allii Sativi gives an average daily dose of 2-5 g of fresh garlic (roughly one to two cloves), alongside 0.4-1.2 g of dried powder, 2-5 mg of oil and 300-1000 mg of extract as solid material. The EU herbal monograph gives no posology for fresh cloves, so WHO is the source here. Educational reference only, not a prescription.

Standardised powder extract[10, 12]

The EU herbal monograph gives, for adults and elderly, powdered herbal substance at a single dose of 300-750 mg for a daily dose of 900-1380 mg divided into 3 to 5 doses; liquid extract 110-220 mg four times daily; and, for the second indication, dry extract 100-200 mg 1-2 times daily (daily dose 100-400 mg). Garlic is CONTRAINDICATED in patients on saquinavir/ritonavir therapy. Not recommended under 18 years for the first indication. Educational reference only, not a prescription.

Standardised extract[11, 12, 13]

Duke (2002) and general phytotherapy guidance treat this as an experimentally supported herb without a single agreed clinical dose; commercial resveratrol-standardised extracts should be dosed per product labelling. Educational reference only, not a prescription; avoid in pregnancy.

References

REF-2426, REF-2427, REF-2428, REF-2429, REF-2430
REF-0979, REF-0980, REF-0981, REF-0982, REF-0983, REF-0984, REF-0985, REF-0986, REF-0987, REF-0988

Drug Class Interactions

Safety note[26, 27]Caution
Drug Class: antiretrovirals
Mechanism: Garlic supplements reduced saquinavir exposure by about half in healthy volunteers, which could lower the effectiveness of some HIV protease inhibitors.
Reviewed By: Omnia Sana (owner-authorized)
Reviewed Date: 2026-07-03
Safety note[27]Caution
Drug Class: anticoagulants-antiplatelets
Mechanism: Garlic has antiplatelet activity (ajoene) and may add to the bleeding risk of anticoagulant or antiplatelet drugs; interactions with warfarin have been reported.
Reviewed By: Omnia Sana (owner-authorized)
Reviewed Date: 2026-07-03
Safety note[27, 28]Caution
Drug Class: antidiabetics
Mechanism: Garlic may modestly lower blood glucose (a meta-analysis in diabetic patients found reduced fasting glucose and HbA1c); watch for an additive effect with diabetes medication (an interaction with chlorpropamide has been reported).
Reviewed By: Omnia Sana (owner-authorized)
Reviewed Date: 2026-07-03
Safety note[29]Caution
Drug Class: antihypertensives
Mechanism: Garlic can lower blood pressure (a meta-analysis found meaningful reductions in people with high blood pressure); combined with blood-pressure medicines it may add to their effect, so monitor blood pressure.
Reviewed By: Omnia Sana (owner-authorized)
Reviewed Date: 2026-07-03

Not documented

Pairings

Garlic and ginger both reduce blood clotting/platelet stickiness, so taking them together may add up and raise the risk of bruising or bleeding — use caution, especially before surgery or alongside blood-thinning drugs.[30, 31]

Partner Id: zingiber-officinale
Type: caution
Reviewed By: Omnia Sana (owner-authorized)
Reviewed Date: 2026-07-03

Garlic and ginseng both reduce blood clotting/platelet stickiness, so taking them together may add up and raise the risk of bruising or bleeding — use caution, especially before surgery or alongside blood-thinning drugs.[30]

Partner Id: panax-ginseng
Type: caution
Reviewed By: Omnia Sana (owner-authorized)
Reviewed Date: 2026-07-03

Garlic and feverfew both reduce blood clotting/platelet stickiness, so taking them together may add up and raise the risk of bruising or bleeding — use caution, especially before surgery or alongside blood-thinning drugs.[30, 32]

Partner Id: tanacetum-parthenium
Type: caution
Reviewed By: Omnia Sana (owner-authorized)
Reviewed Date: 2026-07-03

Garlic and black seed (Nigella sativa) can each mildly lower blood pressure, so taking them together — especially alongside blood-pressure medicines — may add up and lower blood pressure more than expected. Monitor your blood pressure.[29, 33]

Partner Id: nigella-sativa
Type: caution
Reviewed By: Omnia Sana (owner-authorized)
Reviewed Date: 2026-07-03

Not documented

Lookalikes Review

Outcome: has-lookalikes
Reviewed By: Omnia Sana (owner-authorized)
Reviewed Date: 2026-07-06
Outcome: none-known
Reviewed By: Omnia Sana (owner-authorized)
Reviewed Date: 2026-07-07

Dangerous Lookalikes

Safety note[34, 35, 36, 37]Fatal
Dangerous Plant: colchicum-autumnale
Confused Part: Spring leaves, when foraging wild garlic (ramsons) foliage before flowering.
Confusion Context: When people gather wild garlic (ramsons) leaves in spring, autumn crocus leaves — which emerge at the same time in the same damp meadows and woodland edges — are the deadliest thing they can pick by mistake. Autumn crocus contains colchicine, a cell poison with no reliable antidote; a few leaves can kill, and poisoning is repeatedly documented from 'wild garlic' that was actually autumn crocus, progressing from stomach upset to multi-organ failure.
Distinguishing Features: Crushed wild-garlic leaves smell strongly of garlic or onion; autumn crocus leaves have NO garlic smell., Each wild-garlic leaf grows singly on its own slender stalk; autumn crocus leaves are thicker, stiffer and glossy, several clasped together from a common base at ground level, with no individual stalks., Wild garlic pulls up with a small white bulb and onion-like roots; autumn crocus has no garlic bulb.
Key Test: Crush one leaf with clean hands and smell it: a strong garlic or onion smell = wild garlic (safe); no garlic smell = do not pick it. Hands already smelling of garlic give false reassurance, so test with clean hands.
Reviewed By: Omnia Sana (owner-authorized)
Reviewed Date: 2026-07-06
Safety note[38, 39, 40]Fatal
Dangerous Plant: convallaria-majalis
Confused Part: Spring leaves, when foraging wild garlic (ramsons) foliage before flowering.
Confusion Context: Lily-of-the-valley leaves emerge at the same time and in the same shady, damp woodland as wild garlic and are a classic, sometimes fatal, mix-up. The plant contains cardiac glycosides (convallatoxin) that disturb the heartbeat like an overdose of heart medicine, and there is no reliable antidote; foragers who ate leaves they took for wild garlic have arrived at hospital with a dangerously slow heart and low blood pressure.
Distinguishing Features: Crushed wild-garlic leaves smell strongly of garlic or onion; lily-of-the-valley leaves have NO garlic smell., Wild garlic has ONE leaf per individual stalk; lily-of-the-valley has a pair (sometimes three) of leaves wrapped together around a single common stalk, often purplish at the base., Lily-of-the-valley leaves are stiffer and glossier, and there is no garlic bulb underneath.
Key Test: Crush one leaf with clean hands and smell: strong garlic or onion = wild garlic (safe); no garlic smell = discard. Then check the leaves — one leaf per separate stalk (wild garlic) versus a pair of leaves sheathed around one common stalk (lily-of-the-valley).
Reviewed By: Omnia Sana (owner-authorized)
Reviewed Date: 2026-07-06
Safety note[40]Irritant
Dangerous Plant: arum-maculatum
Confused Part: Young spring leaves, when foraging wild garlic (ramsons) foliage.
Confusion Context: Lords-and-ladies pushes up its young leaves at the same time and in the very same damp woods as wild garlic, often mixed in with it. Every part contains needle-like calcium-oxalate crystals: biting a leaf drives them into the mouth and throat, causing immediate intense burning, blistering and swelling — occasionally enough to threaten the airway.
Distinguishing Features: Crushed wild-garlic leaves smell strongly of garlic or onion; lords-and-ladies leaves have NO garlic smell., Wild-garlic leaves have parallel veins running the length of the leaf; lords-and-ladies leaves have a branching net of veins., Lords-and-ladies leaves are arrow- or spear-shaped with two backward-pointing lobes ('tails') at the base, often glossy and sometimes dark-spotted; wild-garlic leaves are smooth ovals with no basal lobes.
Key Test: Crush one leaf with clean hands and smell: garlic or onion = wild garlic (safe); no smell = discard. Reject any leaf that is arrow-shaped with basal 'tail' lobes or has net-like (not parallel) veins — that is lords-and-ladies.
Reviewed By: Omnia Sana (owner-authorized)
Reviewed Date: 2026-07-06

Not documented

References & Sources

  1. El-Saber Batiha, G. and Magdy Beshbishy, A. and G Wasef, L. and Elewa, Y.H.A. and A Al-Sagan, A. and Abd El-Hack, M.E. and Taha, A.E. and M Abd-Elhakim, Y. and Prasad Devkota, H (2020) 'Chemical Constituents and Pharmacological Activities of Garlic (Allium sativum L.): A Review', Nutrients, 12(3), pp. 872. doi:10.3390/nu12030872 Meta-analysis / review
    https://doi.org/10.3390/nu12030872
  2. Shang, A. and Cao, S.Y. and Xu, X.Y. and Gan, R.Y. and Tang, G.Y. and Corke, H. and Mavumengwana, V. and Li, H.B (2019) 'Bioactive Compounds and Biological Functions of Garlic (Allium sativum L.)', Foods, 8(7), pp. 246. doi:10.3390/foods8070246 Meta-analysis / review
    https://doi.org/10.3390/foods8070246
  3. Mejia Delgado, E.M. and Quiroz-Aldave, J.E. and Durand-Vasquez, M.D.C. and Aldave-Pita, L.N. and Fuentes-Mendoza, J.M. and Concepcion-Urteaga, L.A. and Paz-Ibarra, J. and Concepcion-Zavaleta, M.J (2025) 'Immunomodulatory effect of Allium sativum in type 2 diabetes mellitus', World Journal of Experimental Medicine, 15(2), pp. 103481. doi:10.5493/wjem.v15.i2.103481 Meta-analysis / review
    https://doi.org/10.5493/wjem.v15.i2.103481
  4. Majewski, M (2014) 'Allium sativum: facts and myths regarding human health', Roczniki Panstwowego Zakladu Higieny, 65(1), pp. 1-8. Meta-analysis / review
    https://scholar.google.com/scholar?q=Allium%20sativum%3A%20facts%20and%20myths%20regarding%20human%20health
  5. Mardi, P. and Kargar, R. and Fazeli, R. and Qorbani, M (2023) 'Allium sativum: A potential natural compound for NAFLD prevention and treatment', Frontiers in Nutrition, 10, pp. 1059106. doi:10.3389/fnut.2023.1059106 Meta-analysis / review
    https://doi.org/10.3389/fnut.2023.1059106
  6. Sleiman, C., Daou, R.M., Al Hazzouri, A., Hamdan, Z., Ghadieh, H.E., Harbieh, B. and Romani, M (2024) 'Garlic and Hypertension: Efficacy, Mechanism of Action, and Clinical Implications', Nutrients, 16(17). doi:10.3390/nu16172895 Preclinical
    https://doi.org/10.3390/nu16172895
  7. Serrano, J.C.E., Castro-Boque, E., Garcia-Carrasco, A., Moran-Valero, M.I., Gonzalez-Hedstrom, D., Bermudez-Lopez, M. and others (2023) 'Antihypertensive Effects of an Optimized Aged Garlic Extract in Subjects with Grade I Hypertension and Antihypertensive Drug Therapy: A Randomized, Triple-Blind Controlled Trial', Nutrients, 15(17). doi:10.3390/nu15173691 Randomized trial
    https://doi.org/10.3390/nu15173691
  8. Choo, S., Chin, V.K., Wong, E.H., Madhavan, P., Tay, S.T., Yong, P.V.C. and Chong, P.P (2020) 'Review: antimicrobial properties of allicin used alone or in combination with other medications', Folia Microbiologica, 65(3), pp. 451--465. doi:10.1007/s12223-020-00786-5 Preclinical
    https://doi.org/10.1007/s12223-020-00786-5
  9. Mikaili, P., Maadirad, S., Moloudizargari, M., Aghajanshakeri, S. and Sarahroodi, S (2013) 'Therapeutic uses and pharmacological properties of garlic, shallot, and their biologically active compounds', 16(10), pp. 1031--1048. Available at: https://pmc.ncbi.nlm.nih.gov/articles/PMC3874089/ Traditional / reference
    https://pmc.ncbi.nlm.nih.gov/articles/PMC3874089/
  10. Josling, P (2001) 'Preventing the common cold with a garlic supplement: a double-blind, placebo-controlled survey', 18(4), pp. 189--193. doi:10.1007/BF02850113 Randomized trial
    https://doi.org/10.1007/BF02850113
  11. World Health Organization (1999) 'Bulbus Allii Sativi'. Available at: https://iris.who.int/items/6418d8af-5200-4e6b-9bf5-004f3aa62a37 Traditional / reference
    https://iris.who.int/items/6418d8af-5200-4e6b-9bf5-004f3aa62a37
  12. European Medicines Agency (HMPC) (2017) 'European Union herbal monograph on Allium sativum L., bulbus'. Available at: https://www.ema.europa.eu/en/documents/herbal-monograph/final-european-union-herbal-monograph-allium-sativum-l-bulbus_en.pdf Traditional / reference
    https://www.ema.europa.eu/en/documents/herbal-monograph/final-european-union-herbal-monograph-allium-sativum-l-bulbus_en.pdf
  13. National Center for Complementary and Integrative Health (2021) 'Garlic'. Available at: https://www.nccih.nih.gov/health/garlic Traditional / reference
    https://www.nccih.nih.gov/health/garlic
  14. Ried, K (2016) 'Garlic lowers blood pressure in hypertensive individuals, regulates serum cholesterol, and stimulates immunity: an updated meta-analysis and review', 146(2), pp. 389S--396S. doi:10.3945/jn.114.202192 Meta-analysis / review
    https://doi.org/10.3945/jn.114.202192
  15. Royal Botanic Gardens, Kew (n.d.) 'Allium sativum L'. Available at: https://powo.science.kew.org/taxon/urn:lsid:http://ipni.org:names:530118-1 Traditional / reference
    https://powo.science.kew.org/taxon/urn:lsid:http://ipni.org:names:530118-1
  16. World Cancer Research Fund/American Institute for Cancer Research (2018) 'Diet, Nutrition, Physical Activity and Cancer: a Global Perspective (Continuous Update Project Expert Report)'. Available at: https://www.wcrf.org/dietandcancer Traditional / reference
    https://www.wcrf.org/dietandcancer
  17. Imaizumi, V.M., Laurindo, L.F., Manzan, B., Guiguer, E.L., Oshiiwa, M., Otoboni, A.M.M.B. and others (2022) 'Garlic: A systematic review of the effects on cardiovascular diseases', Critical Reviews in Food Science and Nutrition, 63(24), pp. 6797--6819. doi:10.1080/10408398.2022.2043821 Meta-analysis / review
    https://doi.org/10.1080/10408398.2022.2043821
  18. Li, W.-Q. and Zhang, J.-Y. and Ma, J.-L. and Li, Z.-X. and Zhang, L. and Zhang, Y. and Guo, Y. and Zhou, T. and Li, J.-Y. and Shen, L. and Liu, W.-D. and Han, Z.-X. and Blot, W.J. and Gail, M.H. and Pan, K.-F. and You, W.-C (2019) 'Effects of Helicobacter pylori treatment and vitamin and garlic supplementation on gastric cancer incidence and mortality: follow-up of a randomized intervention trial', BMJ, 366, pp. l5016. doi:10.1136/bmj.l5016 Randomized trial
    https://doi.org/10.1136/bmj.l5016
  19. Hassan, H.T (2004) 'Ajoene (natural garlic compound): a new anti-leukaemia agent for AML therapy', Leukemia Research, 28(7), pp. 667-671. doi:10.1016/j.leukres.2003.10.008 Preclinical
    https://doi.org/10.1016/j.leukres.2003.10.008
  20. Agbana, Y.L. and Ni, Y. and Zhou, M. and Zhang, Q. and Kassegne, K. and Karou, S.D. and Kuang, Y. and Zhu, Y (2019) 'Garlic-derived bioactive compound S-allylcysteine inhibits cancer progression through diverse molecular mechanisms', Nutrition Research, 73, pp. 1-14. doi:10.1016/j.nutres.2019.11.002 Preclinical
    https://doi.org/10.1016/j.nutres.2019.11.002
  21. Puccinelli, M.T. and Stan, S.D (2017) 'Dietary Bioactive Diallyl Trisulfide in Cancer Prevention and Treatment', International Journal of Molecular Sciences, 18(8), pp. 1645. doi:10.3390/ijms18081645 Preclinical
    https://doi.org/10.3390/ijms18081645
  22. Borlinghaus, J. and Albrecht, F. and Gruhlke, M.C.H. and Nwachukwu, I.D. and Slusarenko, A.J (2014) 'Allicin: chemistry and biological properties', Molecules, 19(8), pp. 12591-12618. doi:10.3390/molecules190812591 Preclinical
    https://doi.org/10.3390/molecules190812591
  23. Reiter, J., Levina, N., van der Linden, M., Gruhlke, M., Martin, C. and Slusarenko, A.J (2017) 'Diallylthiosulfinate (Allicin), a Volatile Antimicrobial from Garlic (Allium sativum), Kills Human Lung Pathogenic Bacteria, Including MDR Strains, as a Vapor', Molecules, 22(10). doi:10.3390/molecules22101711 Preclinical
    https://doi.org/10.3390/molecules22101711
  24. Ried, K (2016) 'Garlic Lowers Blood Pressure in Hypertensive Individuals, Regulates Serum Cholesterol, and Stimulates Immunity: An Updated Meta-analysis and Review', Journal of Nutrition, 146(2), pp. 389S--396S. doi:10.3945/jn.114.202192 Meta-analysis / review
    https://doi.org/10.3945/jn.114.202192
  25. Duke, J.A (2002) 'Handbook of Medicinal Herbs, Second Edition'. Traditional / reference
    https://scholar.google.com/scholar?q=Handbook%20of%20Medicinal%20Herbs%2C%20Second%20Edition
  26. Piscitelli, S.C., Burstein, A.H., Welden, N., Gallicano, K.D. and Falloon, J (2002) 'The effect of garlic supplements on the pharmacokinetics of saquinavir', Clinical Infectious Diseases, 34(2), pp. 234-238. doi:10.1086/324351 Clinical study
    https://doi.org/10.1086/324351
  27. Izzo, A.A. and Ernst, E (2009) 'Interactions between herbal medicines and prescribed drugs: an updated systematic review', Drugs, 69(13), pp. 1777-1798. doi:10.2165/11317010-000000000-00000 Meta-analysis / review
    https://doi.org/10.2165/11317010-000000000-00000
  28. Shabani, E., Sayemiri, K. and Mohammadpour, M (2019) 'The effect of garlic on lipid profile and glucose parameters in diabetic patients: a systematic review and meta-analysis', Primary Care Diabetes, 13(1), pp. 28-42. doi:10.1016/j.pcd.2018.07.007 Meta-analysis / review
    https://doi.org/10.1016/j.pcd.2018.07.007
  29. Ried, K (2016) 'Garlic Lowers Blood Pressure in Hypertensive Individuals, Regulates Serum Cholesterol, and Stimulates Immunity: An Updated Meta-analysis and Review', The Journal of Nutrition, 146(2), pp. 389S-396S. doi:10.3945/jn.114.202192 Meta-analysis / review
    https://doi.org/10.3945/jn.114.202192
  30. Ang-Lee, M.K., Moss, J. and Yuan, C.S (2001) 'Herbal medicines and perioperative care', JAMA, 286(2), pp. 208-216. doi:10.1001/jama.286.2.208 Meta-analysis / review
    https://doi.org/10.1001/jama.286.2.208
  31. Jiang, X., Williams, K.M., Liauw, W.S., Ammit, A.J., Roufogalis, B.D., Duke, C.C., Day, R.O. and McLachlan, A.J (2005) 'Effect of ginkgo and ginger on the pharmacokinetics and pharmacodynamics of warfarin in healthy subjects', British Journal of Clinical Pharmacology, 59(4), pp. 425-432. doi:10.1111/j.1365-2125.2005.02322.x Randomized trial
    https://doi.org/10.1111/j.1365-2125.2005.02322.x
  32. Groenewegen, W.A. and Heptinstall, S (1990) 'A comparison of the effects of an extract of feverfew and parthenolide, a component of feverfew, on human platelet activity in-vitro', Journal of Pharmacy and Pharmacology, 42(8), pp. 553-557. doi:10.1111/j.2042-7158.1990.tb07057.x Preclinical
    https://doi.org/10.1111/j.2042-7158.1990.tb07057.x
  33. Sahebkar, A., Soranna, D., Liu, X., Thomopoulos, C., Simental-Mendia, L.E., Derosa, G., Maffioli, P. and Parati, G (2016) 'A systematic review and meta-analysis of randomized controlled trials investigating the effects of supplementation with Nigella sativa (black seed) on blood pressure', Journal of Hypertension, 34(11), pp. 2127-2135. doi:10.1097/HJH.0000000000001049 Meta-analysis / review
    https://doi.org/10.1097/HJH.0000000000001049
  34. Galland-Decker, C. and Charmoy, A. and Jolliet, P. and Spertini, O. and Hugli, O. and Pantet, O (2015) 'Progressive organ failure after ingestion of wild garlic juice', The Journal of Emergency Medicine, 50(1), pp. 55-60. doi:10.1016/j.jemermed.2015.06.034 Clinical study
    https://doi.org/10.1016/j.jemermed.2015.06.034
  35. Kupper, J. and Reichert, C (2009) 'Intoxications with plants', Therapeutische Umschau, 66(5), pp. 343-8. doi:10.1024/0040-5930.66.5.343 Clinical study
    https://doi.org/10.1024/0040-5930.66.5.343
  36. Gabrscek, L. and Lesnicar, G. and Krivec, B. and Voga, G. and Sibanc, B. and Blatnik, J. and Jagodic, B (2004) 'Accidental poisoning with autumn crocus', Journal of Toxicology. Clinical Toxicology, 42(1), pp. 85-8. doi:10.1081/clt-120028750 Clinical study
    https://doi.org/10.1081/clt-120028750
  37. German Federal Institute for Risk Assessment (BfR) (2023) 'Wild garlic: beware of mix-ups'. Available at: https://www.bfr.bund.de/en/press-release/baerlauch-vorsicht-vor-verwechslungen/ Traditional / reference
    https://www.bfr.bund.de/en/press-release/baerlauch-vorsicht-vor-verwechslungen/
  38. Trebach, J. and Calleo, V. and Akbar, S. and Langston, J. and Filigenzi, M. and Hoffman, R.S (2022) 'Detectable digoxin concentrations in 3 patients with ramps misadventure', Wilderness and Environmental Medicine, 33(3), pp. 340-343. doi:10.1016/j.wem.2022.04.008 Clinical study
    https://doi.org/10.1016/j.wem.2022.04.008
  39. Fink, S.L. and Robey, T.E. and Tarabar, A.F. and Hodsdon, M.E (2014) 'Rapid detection of convallatoxin using five digoxin immunoassays', Clinical Toxicology (Philadelphia, Pa.), 52(7), pp. 659-63. doi:10.3109/15563650.2014.932366 Preclinical
    https://doi.org/10.3109/15563650.2014.932366
  40. Wild Food UK (2020) 'Wild garlic impostors'. Available at: https://www.wildfooduk.com/articles/identifying-mushrooms-and-plants/wild-garlic-impostors/ Traditional / reference
    https://www.wildfooduk.com/articles/identifying-mushrooms-and-plants/wild-garlic-impostors/
  1. Dong, X., Fu, J., Yin, X., Cao, S. and others (2016) 'Emodin: A Review of its Pharmacology, Toxicity and Pharmacokinetics', Phytotherapy Research, 30(8), pp. 1207-1218. doi:10.1002/ptr.5631 Traditional / reference
    https://doi.org/10.1002/ptr.5631
  2. Wang, S., Yang, Y., Sun, L., Qiao, G. and others (2022) 'Reynoutria japonica Houtt for Acute Respiratory Tract Infections in Adults and Children: A Systematic Review', Frontiers in Pharmacology, 13, pp. 787032. doi:10.3389/fphar.2022.787032 Meta-analysis / review
    https://doi.org/10.3389/fphar.2022.787032
  3. Ke, Y., Zhan, L., Lu, T., Zhou, C. and others (2023) 'Advances for pharmacological activities of Polygonum cuspidatum (Reynoutria japonica) - A review', Pharmaceutical Biology, 61(1), pp. 177-188. doi:10.1080/13880209.2022.2158349 Traditional / reference
    https://doi.org/10.1080/13880209.2022.2158349
  4. Zhang, Q., Zhao, Y., Zhang, M., Zhang, Y. and others (2021) 'Bioactive amides from Reynoutria japonica', Journal of Asian Natural Products Research, 23(3), pp. 228-234. doi:10.1080/10286020.2021.1873298 Preclinical
    https://doi.org/10.1080/10286020.2021.1873298
  5. Lai, Y., Zhou, C., Huang, P., Dong, Z. and others (2024) 'Polygonum cuspidatum polysaccharide: A review of its extraction and purification, structure analysis, and biological activity', Journal of Ethnopharmacology, 331, pp. 118079. doi:10.1016/j.jep.2024.118079 Traditional / reference
    https://doi.org/10.1016/j.jep.2024.118079
  6. Peng, W., Qin, R., Li, X. and Zhou, H (2013) 'Botany, phytochemistry, pharmacology, and potential application of Polygonum cuspidatum Sieb. et Zucc.: a review', Journal of Ethnopharmacology, 148(3), pp. 729-745. doi:10.1016/j.jep.2013.05.007 Traditional / reference
    https://doi.org/10.1016/j.jep.2013.05.007
  7. Wang, X., Liang, L., Yan, J., Li, Z. and others (2023) 'Citri Reticulatae Pericarpium-Reynoutria japonica Houtt. herb pair suppresses breast cancer liver metastasis by targeting ECM1-mediated cholesterol biosynthesis pathway', Phytomedicine, 116, pp. 154896. doi:10.1016/j.phymed.2023.154896 Preclinical
    https://doi.org/10.1016/j.phymed.2023.154896
  8. Jiang, Y., Liu, Y., Zhang, X. and others (2020) 'New phenolic glycosides from Reynoutria japonica', Journal of Asian Natural Products Research, 22(1), pp. 17-23. doi:10.1080/10286020.2019.1646730 Preclinical
    https://doi.org/10.1080/10286020.2019.1646730
  9. Liu, Y., Wang, J., Li, Q. and others (2024) 'The Possibility of Polygonum cuspidatum against Osteoarthritis based on Network Pharmacology', Current Computer-Aided Drug Design, 20(2), pp. 121-133. doi:10.2174/1573409919666230403114131 Preclinical
    https://doi.org/10.2174/1573409919666230403114131
  10. Espinosa-Andrews, H., Morales-Hernandez, N., Garcia-Marquez, E. and others (2025) 'Physicochemical and rheological characteristics of commercial Greek-style yogurt enriched with Polygonum cuspidatum roots or the P. cuspidatum beta-cyclodextrin inclusion complex', Food Research International, 203, pp. 115854. doi:10.1016/j.foodres.2025.115854 Preclinical
    https://doi.org/10.1016/j.foodres.2025.115854
  11. Burns, J., Yokota, T., Ashihara, H., Lean, M.E.J. and Crozier, A (2002) 'Plant foods and herbal sources of resveratrol', 50(11), pp. 3337--3340. doi:10.1021/jf0112973 Traditional / reference
    https://doi.org/10.1021/jf0112973
  12. Royal Botanic Gardens, Kew (n.d.). Available at: https://powo.science.kew.org Traditional / reference
    https://powo.science.kew.org
  13. World Health Organization (2007) 'WHO Monographs on Selected Medicinal Plants'. Traditional / reference
    https://scholar.google.com/scholar?q=WHO%20Monographs%20on%20Selected%20Medicinal%20Plants
  14. Duke, J.A (2002) 'Handbook of Medicinal Herbs, Second Edition'. Traditional / reference
    https://scholar.google.com/scholar?q=Handbook%20of%20Medicinal%20Herbs%2C%20Second%20Edition

Generated automatically from the Omnia Sana plant database and its cited sources. For educational purposes only — not medical advice. Always consult a qualified practitioner before using medicinal plants.