Cardamom
ZingiberaceaeElettaria cardamomum
Also known as: Green Cardamom, True Cardamom, Elaichi
clinical_notes Clinical Summary
Cardamom (Elettaria cardamomum), the 'Queen of Spices,' is a warming, aromatic digestive carminative used across Ayurveda, TCM, Unani, and Western herbal medicine.
Its volatile oil (primarily 1,8-cineole and alpha-terpinyl acetate) relieves flatulence, dyspepsia, nausea, and halitosis, and gently supports respiratory clearance.
Considered very safe at culinary and typical medicinal doses with few clinical cautions beyond biliary obstruction and Zingiberaceae allergy.
Pregnancy Safety
Culinary use is category A (no evidence of harm). Medicinal/supplemental doses graded B1 due to limited data.
Lactation Safety
Culinary use considered safe in lactation.
warning Contraindications
- Gallstones / biliary obstruction (caution)Theoretical
- Allergy to Zingiberaceae family (avoid)Theoretical
- Active peptic ulcer disease (caution)Theoretical
- Pregnancy (medicinal doses) (caution)Theoretical
vital_signs Clinical Profile
Primary Indications
- check_circle Dyspepsia
- check_circle Flatulence and bloating
- check_circle Nausea
- check_circle Halitosis (bad breath)
- check_circle Nausea of pregnancy (culinary amounts)
- check_circle Bronchitis (adjunct)
- check_circle Loss of appetite
- check_circle IBS with gas
Therapeutic Actions
System Affinities
- check_circle digestive system
- check_circle respiratory system
- check_circle oropharyngeal tissues
labs Active Constituents
Volatile oil
Starch
Mucilage
Fixed oil
history_edu Traditional Use
Traditional Chinese Medicine (TCM)
白豆蔻 (Bái Dòu Kòu)
Nature: warm
- Damp obstruction of the Middle Jiao
- Cold-Damp with poor appetite
- Nausea and vomiting
- Belching
- Stuffy chest and abdomen
Aromatic, transforms dampness, and harmonizes the Middle Jiao; added to decoctions at the end to preserve volatile oils.
Traditional Uses Across Healing Systems
While many herbs lack controlled clinical trials, centuries of traditional practice across cultures provide valuable insight into their therapeutic applications.
Called Ela; tridoshic (balances all three doshas, primarily reduces Kapha and Vata). Used for indigestion, anorexia, nausea, and halitosis; adjunct to chai and cooking to ease digestion.
Known as the 'Queen of Spices' in Indian tradition.
Bai Dou Kou aromatically transforms Dampness, warms the Middle, and descends rebellious Stomach Qi.
Added at the end of decoction (hou xia) to preserve aromatic oils.
Hot-dry; used as mufarrih (exhilarant) for the heart, digestive tonic, and breath freshener.
Core component of qahwa (Arabic coffee).
Carminative, digestive stimulant, and aromatic added to bitter tonics.
Featured in British and Commonwealth pharmacopoeias as aromatic tincture.
spa Parts Used
seed (within fruit capsule)
- Dyspepsia
- Flatulence
- Halitosis
Green cardamom pods contain the aromatic seeds; the pod protects volatile oil. Seeds are freshly cracked or ground for maximum potency. Avoid pre-ground powder for therapeutic use.
shield Safety
Contraindications — Evidence Basis
Gallstones / biliary obstruction
Cholagogue activity; may provoke biliary colic in obstructive stones.
Allergy to Zingiberaceae family
Cross-reactivity with ginger, turmeric.
Active peptic ulcer disease
Theoretical irritation from aromatic constituents; clinical evidence lacking.
Pregnancy (medicinal doses)
Culinary amounts considered safe; therapeutic/supplemental doses have not been adequately studied.
Toxicity
No acute human toxicity reported at usual doses. LD50 of 1,8-cineole oral in rats ~2.48 g/kg.
Rare GI upset, allergic contact dermatitis.
Supportive; discontinue.
Adverse Effects
CYP Metabolism
1,8-Cineole induces CYP3A4 and CYP2B6; clinical relevance minimal at culinary doses.
swap_horiz Interactions
Aspirin and antiplatelet agents
Class: Antiplatelet agent
Cardamom and 1,8-cineole demonstrate antiplatelet and anti-aggregatory activity in preclinical studies. At culinary doses clinical impact is negligible; at high medicinal doses (concentrated oil or extracts), additive bleeding risk with antiplatelet drugs is plausible.
Culinary use is safe. Discourage concentrated cardamom essential oil supplements in patients on antiplatelet therapy, especially perioperatively.
Antihypertensive agents
Class: Antihypertensive (multiple classes)
A randomized trial showed cardamom powder (3 g/day for 12 weeks) reduced systolic and diastolic blood pressure in stage 1 hypertensive patients through diuretic, antioxidant, and fibrinolytic mechanisms. Additive with antihypertensive drugs.
Monitor BP in patients who begin regular medicinal cardamom (tea, supplements, > 3 g/day). Adjust antihypertensive dose if hypotension develops.
Antidiabetic medications (metformin, sulfonylureas, insulin)
Class: Antidiabetic
Cardamom supplementation has shown modest reductions in fasting blood glucose, HbA1c, and insulin resistance in overweight/type 2 diabetic patients. Additive hypoglycemic effect with antidiabetic drugs is possible.
Monitor blood glucose when initiating medicinal cardamom supplementation. Adjust antidiabetic dose if repeated hypoglycemia occurs.
CYP3A4 and CYP2B6 substrates (tacrolimus, efavirenz)
Class: CYP3A4/CYP2B6 substrates
1,8-Cineole, the major cardamom essential-oil constituent, induces CYP3A4 and CYP2B6 in human hepatocytes. At concentrated medicinal doses of essential oil, induction may accelerate metabolism of CYP3A4/2B6 substrates.
Clinical relevance minimal at culinary doses. Avoid concentrated cardamom oil supplements in transplant patients or those on efavirenz, methadone, or other narrow-therapeutic-index CYP3A4/2B6 substrates.
HIV protease inhibitors (indinavir, saquinavir)
Class: Antiretroviral (protease inhibitor)
HIV protease inhibitors are CYP3A4 substrates with narrow therapeutic windows. Concentrated cardamom products containing inducing levels of 1,8-cineole may reduce protease inhibitor plasma levels and compromise viral suppression.
Advise HIV patients on protease inhibitor regimens to avoid high-dose cardamom supplements; culinary use remains acceptable.
Gastric acid-suppressing drugs (proton pump inhibitors)
Class: Proton pump inhibitor
Cardamom reduces gastric acid secretion and increases gastric emptying. Combined with PPIs, effects on gastric pH may influence the absorption of pH-dependent drugs (ketoconazole, iron, atazanavir).
Clinically minor. Space ingestion of pH-dependent oral medications by at least 2 hours from medicinal cardamom doses.
hub Combinations
Synergistic pairings can enhance therapeutic outcomes, while knowing suitable substitutes helps when specific herbs are unavailable or contraindicated.
Classical Formulas
1Cinnamon
Traditional UseChai masala core; both warming aromatics that support digestion and circulation.
Long culinary-medicinal tradition.
Synergistic Combinations
4Coriander (Coriandrum sativum)
Traditional UseBoth cooling-aromatic carminatives; coriander balances cardamom's warmth in Ayurvedic digestive formulas.
Ayurvedic tradition.
Fennel
Traditional UseClassical carminative duo after meals; both relieve gas and bloating.
Traditional Western and Ayurvedic combination.
Ginger
Traditional UseBoth Zingiberaceae carminatives; classic chai and Ayurvedic digestive pairing that warms the middle and eases nausea.
Traditional pairing in chai masala; overlapping digestive mechanisms.
Peppermint
Limited EvidenceBoth antispasmodic carminatives; paired for IBS with gas and post-prandial discomfort.
Empirical integrative GI use.
science Studies
Effect of cardamom consumption on inflammation and blood pressure in adults: A systematic review and meta-analysis of randomized clinical trials
Meta-AnalysisThis systematic review and meta-analysis of 8 randomized clinical trials evaluated the anti-inflammatory and antihypertensive effects of cardamom supplementation in adults. Cardamom significantly reduced high-sensitivity CRP (SMD: -0.60 mg/dL), IL-6 (WMD: -1.25 mg/dL), and TNF-alpha (WMD: -2.10 kg), along with significant reductions in both systolic and diastolic blood pressure measures. The review concluded that cardamom can reduce inflammation and improve blood pressure control, though the authors cautioned that the limited number of studies and small sample sizes necessitate further investigation before definitive clinical recommendations.
The effect of green cardamom on blood pressure and inflammatory markers among patients with metabolic syndrome and related disorders: A systematic review and meta-analysis of randomized clinical trials
Meta-AnalysisThis systematic review and meta-analysis pooled 8 RCTs with 595 patients to evaluate the effects of green cardamom on blood pressure and inflammatory markers in metabolic syndrome and related conditions. Cardamom significantly reduced diastolic blood pressure (WMD: -0.91 mmHg), high-sensitivity CRP (WMD: -1.21 mg/L), and interleukin-6 levels (WMD: -2.41 ng/L) compared to controls. Systolic blood pressure was not significantly reduced overall. The authors concluded that green cardamom can modestly improve diastolic pressure and exert anti-inflammatory benefits in patients with metabolic comorbidities, though more large-scale trials are warranted.
medication Dosing
powder
1-2 g powdered seed
2-3x/day
Ayurveda often uses 500 mg-1.5 g per dose mixed with warm water or ghee.
infusion
1.5 g (approx 5 pods, crushed) per cup
2-3x/day
Simmer briefly or steep 5-10 min.
tincture
1-2 mL (1:5, 60% ethanol)
2-3x/day
Classical aromatic bitter.
decoction
3-6 g (added at end of decoction)
1x/day (divided)
In TCM formulas, cardamom is 'hou xia' — added in final 5 minutes to protect volatile oils.
Disclaimer: This information is largely AI-generated and reviewed by human experts at Evara Health. It is intended for educational and clinical reference purposes only and should not replace professional medical advice.
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