Ajmoda: Benefits, Evidence, Dosage & Safety

TL;DR

Ajmoda is the Ayurvedic name for celery-family seeds: in practice Apium graveolens (celery seed) and Trachyspermum roxburghianum, two different plants sold under one name. Two small human trials of celery seed extract found blood-pressure reductions over 4 to 12 weeks: early evidence, with short durations and specific seed preparations. Nothing here generalizes to the seed powder in your kitchen.

What it is

Ajmoda (also spelled ajamoda) is the Ayurvedic name for the dried umbelliferous fruits, "seeds," of the celery family (Apiaceae). And its botanical identity is genuinely messy, which I say as a warning, not color. Per a pharmacognostical study in the International Journal of Herbal Medicine, the Ayurvedic Formulary of India (Part 3) gives Apium leptophyllum as the botanical equivalent of Ajamoda, while market samples commonly substitute the fruits of Trachyspermum roxburghianum (DC.) H. Wolff and Apium graveolens (Reddy et al., 2018). A 2023 pharmacognostic evaluation confirms that Apium graveolens Linn. and Trachyspermum roxburghianum are both "popularly known as 'Ajmoda' in India and 'Celery' in English," with small, morphologically similar seeds that make proper identification difficult (Parida et al., Indian Drugs 2023).

The practical consequence, stated bluntly: a product labeled "ajmoda" may contain either species, while every human trial below tested Apium graveolens (celery seed) extracts. Their results do not automatically apply to T. roxburghianum. Keep that mismatch in your head for the whole article.

Traditional use

Ajamoda fruit turns up across many formulations in the Ayurvedic Formulary of India, Ajamodarka and Ajamodadi curna among them, with classical indications centered on digestive complaints: gulma (abdominal lumps), aruci (tastelessness), adhmana (bloating), hiccup, vomiting, intestinal worms, and abdominal pain (J Pharmacogn Phytochem review of AFI formulations). Traditional pharmacology databases list its actions as carminative, antispasmodic, diuretic, and emmenagogue (Drug Information System herbal database). Traditional claims. Not clinical proof. The human trials get assessed separately below, on their own terms.

What modern research says

Blood pressure

Two randomized, placebo-controlled trials of Apium graveolens seed extract. One enrolled hypertensive patients; the other enrolled people with metabolic syndrome (average baseline blood pressure 121.0/82.2 mmHg, with none having established hypertension). Both reported blood-pressure reductions. Here is what each one actually did.

First, the crossover trial (n=51): randomized, triple-blind, placebo-controlled, crossover. Hypertensive patients took 4 celery seed extract capsules per day (1.34 g total extract) or matching placebo for 4 weeks, on top of their usual medication. Blood pressure fell. Fasting blood sugar fell too, from 108.53 to 97.96 mg/dL (p<0.01). The lipid profile improved: total cholesterol down 16.37, triglycerides down 16.22, LDL down 11.84, HDL up 2.52 mg/dL (p<0.001). Kidney and liver markers moved modestly in the right direction: BUN down 3.43, serum creatinine down 0.075 mg/dL; SGPT down 4.08, SGOT down 3.03 U/L (p<0.05). No significant change in blood cells or electrolytes. No significant side effects versus placebo. The authors flagged the small sample size themselves and called for larger trials (Inflammopharmacology, 2022). Good. They should have.

Second, the metabolic-syndrome trial (n=28): randomized, double-blind, placebo-controlled, registered as NCT06061926. Fourteen patients with metabolic syndrome took 150 mg/day of celery seed for 12 weeks. Systolic pressure fell from 121.0 to 115.7 mmHg (p=0.005); diastolic from 82.2 to 78.5 mmHg (p=0.013). Triglycerides, VLDL, and uric acid fell alongside. Insulin sensitivity and secretion did not change (Pharmaceuticals, 2026).

My read: two small, short trials, testing specific A. graveolens seed preparations as add-ons or in narrowly defined patients. Not the traditional seed powder. Not general use. The results are real and they are narrow. Hold both.

What the evidence does not support (yet)

The traditional digestive, respiratory, and urinary claims for ajmoda have not been tested in published human trials. Not one of them. And nothing in the human data supports using ajmoda as a substitute for prescribed blood-pressure medication. I am explicit about that because the BP results above will tempt people. Do not be tempted.

Dosage

There is no pharmacopoeial dose cited in the reviewed sources. Anyone quoting you one is improvising.

The only human regimens are research doses of specific extracts: 1.34 g/day of celery seed extract for 4 weeks (crossover trial) and 150 mg/day for 12 weeks (metabolic-syndrome trial) (Inflammopharmacology, 2022; Pharmaceuticals, 2026). Neither is a personal recommendation. Neither applies to generic ajmoda seed powder, especially with the species-identity problem above. A trial dose and a safe dose for you are different questions, and only the first has an answer.

Safety & contraindications

In the 4-week crossover trial, celery seed extract showed no significant side effects versus placebo over the study period (Inflammopharmacology, 2022). Beyond that one trial, human safety data are thin. Cautions grounded in the evidence, kept short:

FAQs

What is ajmoda — is it the same as celery seed?

Partly, and "partly" is doing a lot of work. "Ajmoda" is applied in India to both Apium graveolens (celery seed) and Trachyspermum roxburghianum, and the Ayurvedic Formulary lists yet another species (Apium leptophyllum) as the official equivalent (Reddy et al., 2018). Every human trial used A. graveolens. If your bottle holds the other species, the trials do not cover you.

Does ajmoda lower blood pressure?

Two small randomized trials of celery seed extract found reductions: a 4-week crossover trial (n=51, 1.34 g/day) and a 12-week metabolic-syndrome trial (n=28, 150 mg/day) (Inflammopharmacology, 2022; Pharmaceuticals, 2026). Small samples. Short durations. Early evidence, not proof, and not a reason to touch prescribed medication.

What dose of ajmoda was studied?

Only two research regimens exist: 1.34 g/day of celery seed extract for 4 weeks, and 150 mg/day for 12 weeks. There is no established dose for traditional ajmoda seed powder. I would not extrapolate from one to the other.

Is ajmoda safe in pregnancy?

There are no human safety data, and traditional pharmacology lists emmenagogue action for Apium graveolens. Avoid in pregnancy without clinical guidance. Short answer, firm answer.

Can I take ajmoda with blood pressure medication?

Be cautious. The trials found BP-lowering effects, so additive effects with antihypertensives are plausible. Discuss it with your clinician and do not adjust prescribed medication on your own. This is not the herb to freelance with.

Sources

The botanical-identity papers: Reddy, Shantha and Bhat's pharmacognostical study of Vanya Ajamoda fruits (Trachyspermum roxburghianum), International Journal of Herbal Medicine 2018 (florajournal.com), and Parida et al.'s pharmacognostic evaluation of Apium graveolens and Trachyspermum roxburghianum as the drug "Ajmoda," Indian Drugs 2023 (ouci.dntb.gov.ua).

The human trials: the celery seed extract crossover trial in hypertensive patients, Inflammopharmacology 2022, DOI 10.1007/s10787-022-00986-0 (DOI · 10.1007/s10787-022-00986-0), and the metabolic-syndrome trial, Pharmaceuticals 2026;19(1):110 (n=28, NCT06061926) (mdpi.com).

Traditional-use background: the Journal of Pharmacognosy and Phytochemistry review of Ajamoda in AFI formulations, 2013 (phytojournal.com), and the Drug Information System's Apium graveolens pharmacological profile (druginfosys.com).

Disclaimer

This article is for educational purposes only and is not medical advice. Herbal products can interact with medications and are not suitable for everyone. Talk to a qualified healthcare practitioner before use — especially if you are pregnant, breastfeeding, managing a medical condition, or taking prescription medicines.