Medea Botanicals
Ginger

Ginger

Zingiber officinale

Other names: Ginger, ჯანჯაფილი, 生姜 shēngjiāng; 干姜 / 乾薑 gānjiāng; 炮姜 páojiāng, Ardraka (आर्द्रक, fresh), Shunthi (शुण्ठी, dried), Adrak

Edible plant

Photo credit: Franz Eugen Köhler, Köhler's Medizinal-Pflanzen

Safety information

Safety information

Toxicity: Mild - abdominal discomfort, heartburn, diarrhea, mouth/throat irritation. | None known at culinary scale. | Very low as food/spice. Modern: high doses may cause heartburn/GI upset; mild antiplatelet effect possible. Grieve warns commercial Essence of Ginger was often adulterated. | None known at culinary doses. | None known reported at culinary/normal doses. | Mild — heartburn, GI discomfort, mouth/throat irritation. | Low for culinary/food amounts. Higher supplement doses may cause mild GI upset, heartburn, or diarrhea. | Low; mild heartburn, GI discomfort at high doses.

Contraindications: Generally well tolerated. Supplements during pregnancy may be safe but consult a provider; limited breastfeeding data. | Caution with bleeding disorders / high doses. | None specified by source. Modern: large medicinal doses with anticoagulants; gallstones. | Avoid medicinal doses with peptic ulcers; in pregnancy and with anticoagulants keep to ≤2 g dried (≈4 g fresh) per day; essential oil professional-only internally. | Per Commission E, not recommended for morning sickness of pregnancy (though traditional use exists; TCM advises ≤2 g dried ginger daily in pregnancy). | Generally well tolerated; consult provider in pregnancy for supplement doses. | Generally safe in pregnancy at culinary/low supplement doses (used for morning sickness), but high doses and concentrated extracts not well characterized in pregnancy - caution and professional advice advised; caution with gallstones (cholagogue effect) and bleeding disorders. | Bleeding disorders/before surgery (antiplatelet, high doses); gallstones (cholagogue); high medicinal doses in pregnancy debated (culinary amounts acceptable; consult clinician).

Interactions: Talk to provider if on medication; theoretical additive effect with anticoagulants/antiplatelets at high supplement doses (described inconsistently). | May potentiate anticoagulants (modern note, not in source). | None specified by source. Modern: possible additive bleeding risk with anticoagulants in high doses. | Anticoagulants (dose-limit; mild antiplatelet effect). | May influence bleeding times (inhibits thromboxane synthase, prostacyclin agonist); large doses (12–14 g) may enhance anticoagulant drugs. | Theoretical additive antiplatelet/anticoagulant at high supplement doses. | Theoretical additive antiplatelet/anticoagulant effect (warfarin, aspirin, antiplatelet herbs); possible additive effect with antidiabetic and antihypertensive drugs at high doses. | Anticoagulants/antiplatelets (possible additive bleeding at high doses), antidiabetics, antihypertensives.

Pregnancy & breastfeeding: Supplements may be safe but consult provider; limited breastfeeding data. | High-dose medicinal use should follow medical advice (emmenagogue) (modern). | Excellent and safe for pregnancy nausea within the ≤2 g/day limit. | Per Commission E, not recommended for morning sickness; TCM advises ≤2 g dried ginger daily in pregnancy. | Consult provider in pregnancy for supplement doses (may help pregnancy nausea). | Safe at culinary/low doses (used for morning sickness); caution at high doses/concentrated extracts. | High medicinal doses debated; culinary amounts considered acceptable; consult clinician.

Evidence level

Clinical

Supported by clinical trials in humans.

Preparations

infusion · rhizome

Part used: rhizome

Traditional use: For nausea and digestive complaints.

How to prepare (traditional): An infusion is made from the rhizome.

Dosage note (descriptive only): For nausea, drink 3/4 cup (150 ml) three times a day.

Evidence:Traditional (systematized)
capsule · rhizome

Part used: rhizome

Traditional use: For morning sickness.

How to prepare (traditional): The rhizome is made into capsules.

Dosage note (descriptive only): For morning sickness, a 75 mg capsule every hour.

Evidence:Traditional (systematized)
tincture · rhizome

Part used: rhizome

Traditional use: To improve digestion.

How to prepare (traditional): A tincture is made from the rhizome.

Dosage note (descriptive only): To improve digestion, 30 drops with water twice a day.

Evidence:Traditional (systematized)
oil · rhizome

Part used: rhizome

Traditional use: Applied externally for arthritic aches and pains.

How to prepare (traditional): The essential oil is diluted, 5 drops in 20 drops carrier oil, and applied.

Dosage note (descriptive only): For arthritic aches and pains, apply the diluted oil externally.

Evidence:Traditional (systematized)

General preparation guide →

Associated conditions

Edibility

Edible parts: rhizome, raw or cooked, widely used as food/spice | Rhizome, spice/food. | rhizome fresh/dried/preserved/candied (spice, tea, baking), cooked and raw | everyday culinary spice/food (rhizome), fresh or dried | culinary spice/food (rhizome), fresh or dried | Rhizome raw/cooked. | Rhizome eaten fresh, dried, pickled, candied, and as a near-universal culinary spice; ginger tea common. | Rhizome widely eaten fresh/dried/cooked; staple culinary spice.

Toxic lookalike warning

Do not confuse with unrelated rhizomes; wild ginger (Asarum spp.) is a DIFFERENT plant containing aristolochic-acid-type/nephrotoxic and carcinogenic compounds and must not be substituted. | Low (imported spice). | Cultivated tropical crop - no significant wild look-alike for the rhizome. | Culinary ginger unmistakable whole; do not substitute wild ginger (Asarum spp.), which contains nephrotoxic/carcinogenic aristolochic-acid–type compounds. | No serious toxic-lookalike for the cultivated rhizome; do not confuse with unrelated rhizomes; only food-grade Z. officinale. | Fresh ginger can be confused with other rhizomes (galangal, turmeric, or rarely unrelated toxic roots) when foraging or buying loose roots; source identified ginger.

Nutritional notes

Functional-food role; gingerols/shogaols (pungent bioactives); culinary spice, low calorie. | Aromatic spice; volatile oil and resins (gingerols/shogaols). | Functional spice; warming, anti-nausea. | Culinary aromatic; antioxidant/antimicrobial food-preservative role. | Gingerols/shogaols (pungent bioactives); low calorie functional spice. | Functional spice/food; gingerols (fresh), shogaols (dried/heated), aromatic sesquiterpenes (zingiberene). Low macronutrient at culinary amounts. | Culinary spice; gingerols/shogaols are bioactive; minor minerals.

Healing traditions

Sources (16)

  1. Grieve M., A Modern Herbal (1931)Maud Grieve (1931)
  2. Chevallier A., Encyclopedia of Herbal Medicine (2016)Andrew Chevallier (2016)
  3. Hoffmann D., Medical Herbalism (2003)David Hoffmann (2003)
  4. Mtsire Karabadini, Part II (Surmanidze, 1990)Ramaz Surmanidze (1990)
  5. Karabadini (Khelaia ed., 2009)Nani Khelaia (ed.) (2009)
  6. NCCIH Ginger fact sheet (Toth 2018 Phytomedicine, PMID 30466995; Hu 2022, PMID 31937153; Negi 2021, PMID 33842121)
  7. EMA/HMPC Zingiberis rhizoma monograph
  8. Zingiber officinale (Wikipedia), English, accessed 2026, https://en.wikipedia.org/wiki/Ginger
  9. Ginger (NCCIH/NIH), English, https://www.nccih.nih.gov/health/ginger
  10. Ginger (LactMed, NCBI Bookshelf NBK501772), English, https://www.ncbi.nlm.nih.gov/books/NBK501772/
  11. Tahergorabi et al., Treatment of Nausea and Vomiting With Zingiber officinale in Pregnancy: An Umbrella Review of Systematic Reviews, Phytother Res 2026, PMID 42322087
  12. Paudel et al., Pharmacological properties of ginger: what do meta-analyses say? A systematic review, Front Pharmacol 2025, PMC12343617
  13. Li 2024, Int J Food Sci Nutr (PMID 38072785)
  14. Viljoen 2014, Nutr J (PMID 24642205)
  15. Tóth 2018, Phytomedicine (PMID 30466995)
  16. Crichton 2019, J Acad Nutr Diet (PMID 31519467)

All sources →

Sourcing & resources

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Not medical advice. Consult a qualified healthcare professional before using any plant or preparation.