Nigella Seeds in Urdu: Kalonji Meaning, Uses & Benefits - MNT

Nigella Seeds in Urdu: Kalonji Meaning, Uses & Benefits

✓ Medically Reviewed by: Dr. Bilal Amin (MBBS)
Published: October 07, 2026
Last Updated: October 08, 2026

Nigella seeds are called kalonji (کلونجی) in Urdu. Learn how to identify them, distinguish similar seeds, and understand their food uses and safety.

Quick answer: Nigella seeds are called kalonji (کلونجی) in Urdu. They come from the plant Nigella sativa. You may also see them called black seed or black cumin, but common names can be confusing. Check the botanical name on the packet if you need to confirm that a product is kalonji.

Name Answer
Urdu کلونجی
Roman Urdu Kalonji
English Nigella seeds or black seed
Botanical name Nigella sativa

What are Nigella seeds?

Nigella seeds are the small, dark seeds of the flowering plant Nigella sativa. The plant belongs to the buttercup family, Ranunculaceae. The seeds are usually angular or triangular, with a strong aroma and a slightly bitter, peppery taste.

People mainly use kalonji as a spice. It also has a long history of traditional use, but traditional use does not prove that it can treat a health condition.

Kalonji vs. similar seeds

Several dark seeds have similar names. Kalonji is not regular cumin or black sesame. The label “black cumin” can also refer to different seeds, depending on the seller. The botanical name Nigella sativa is the clearest way to confirm that a product is kalonji. Kew’s plant-name database lists Kalonji as a common name for Nigella sativa.

Seed Botanical name How to tell it apart
Kalonji / Nigella seed Nigella sativa Small, dark, angular seeds with a peppery, slightly bitter taste
Regular cumin / zeera Cuminum cyminum A different spice, usually long, narrow and light brown
Kala or shahi zeera Names and plant types can vary by region and seller A different dark spice; do not assume it is kalonji
Black sesame Sesamum indicum Sesame seeds; they are not kalonji
True onion seeds Allium cepa From the onion plant; different from kalonji

Some recipes or sellers use “onion seeds” as a name for kalonji. However, Nigella seeds and true onion seeds are not from the same plant, and research has reported that Nigella seeds can be confused with or substituted by onion seeds. Check the label for Nigella sativa when the seed’s identity matters.

For more on the difference between cumin and kalonji, see MNT’s guide to cumin seeds in Urdu.

How to identify kalonji

Kalonji seeds are usually small, black or dark brown, and angular. They have a noticeable smell and a peppery, slightly bitter flavour.

Appearance can help, but it may not be enough to confirm a seed’s identity. If a packet says only “black cumin” or “onion seeds,” check the ingredient list or ask the seller for the botanical name.

How to use Nigella seeds in food

Nigella seeds add aroma and flavour to food. You can sprinkle a small amount over bread, flatbreads, vegetables, lentils or other savoury dishes. They are also used in some pickles and spice mixes.

Try these simple methods:

  • Sprinkle whole seeds over bread or flatbread before baking.
  • Add a small amount to vegetables, lentils or other savoury dishes.
  • Lightly crush the seeds if you want their flavour to spread through a dish.
  • Start with a little; kalonji has a strong taste.

Use Nigella seeds as a spice in meals. Do not assume that taking a large amount, oil or a concentrated extract has the same effect as using a small amount in food.

Kalonji benefits: what research says

Researchers have studied Nigella sativa seeds and oil for several health outcomes. Some studies suggest possible effects, but the evidence does not show that kalonji is a proven cure. An overview of systematic reviews found that the quality of much of the evidence was low or very low, and that larger, better trials are needed to confirm clinical effects.

The form matters, too. Whole seeds, seed powder, oil and extracts can differ in their ingredients and amounts. A result from one form does not automatically apply to another.

Kalonji should not replace prescribed medicine or medical care. If you want to use kalonji for a health condition, speak with a qualified healthcare professional first.

Side effects and safety

Kalonji used in normal food amounts is likely safe for most people. Supplements and concentrated oils are different from a pinch of seeds in a meal. Their safety can depend on the product, amount and person. Abu Dhabi’s Department of Health provides guidance on black seed safety.

Take extra care in these situations:

  • Pregnancy: Avoid using kalonji in medicinal or supplement amounts unless your healthcare professional advises you. Abu Dhabi’s Department of Health warns that amounts above those found in food may be unsafe during pregnancy.
  • Breastfeeding: There is not enough reliable information to confirm the safety of black seed products while breastfeeding. There is also no sound clinical evidence that black seed increases milk supply.
  • Medicines or a health condition: Ask a doctor or pharmacist before taking kalonji oil or supplements. Possible interactions have been reported, but their importance is not fully clear.
  • Skin use: Black seed oil can cause an allergic skin reaction in some people.

If you have a health condition, take regular medicine, or are pregnant or breastfeeding, get individual advice before using a concentrated product.

How to choose and store kalonji

Choose a product that lists Nigella sativa as the ingredient if you want Nigella seeds specifically. Check that the packet is sealed, dry and free from visible moisture or debris.

Store kalonji in an airtight container in a cool, dry place, away from direct sunlight. Keep it away from heat and moisture to help preserve its aroma.

Frequently asked questions

What is Nigella seed called in Urdu?

Nigella seed is called kalonji (کلونجی) in Urdu. Its botanical name is Nigella sativa.

What is kalonji called in English?

Kalonji is called Nigella seed or black seed in English. It is sometimes called black cumin, but that common name can refer to other seeds too.

Is kalonji the same as black cumin?

Sometimes “black cumin” means kalonji, but the name is not used consistently. Check for Nigella sativa on the label to confirm that the product is kalonji.

Is kalonji the same as black sesame?

No. Kalonji comes from Nigella sativa. Black sesame comes from Sesamum indicum. They are different seeds.

Are kalonji and onion seeds the same?

No. Some recipes or sellers use “onion seeds” as a name for kalonji, but true onion seeds come from the onion plant. Check the ingredient list for Nigella sativa if you need kalonji specifically.

Is kalonji the same as shahi jeera?

No. Kalonji and shahi jeera are different seeds. Names used for dark spices can vary by region and seller, so check the botanical name if you need to identify a product.

What does kalonji taste like?

Kalonji has a strong aroma and a slightly bitter, peppery taste. Its flavour is different from regular cumin and sesame.

Can kalonji cure diabetes or another disease?

No. Kalonji should not be presented as a proven cure, and it should not replace prescribed treatment. Research on Nigella sativa is still limited. For general food guidance, see MNT’s guide to nuts and seeds for diabetes.

Is kalonji safe during pregnancy or breastfeeding?

Food amounts and supplement amounts are not the same. Avoid using kalonji oil or supplements during pregnancy unless your healthcare professional advises you. There is not enough reliable information to confirm the safety of black seed products during breastfeeding.

Key takeaway

Nigella seeds are called kalonji (کلونجی) in Urdu, and their botanical name is Nigella sativa. They are a flavourful spice, but names such as “black cumin” and “onion seeds” can be unclear. Check the botanical name when buying them, and speak with a healthcare professional before using concentrated products for health reasons.

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Medical Disclaimer
The information provided in this article is evidence-based and intended for educational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult your physician or a Registered Dietitian Nutritionist (RDN) before making changes to your diet, managing a medical condition, or starting any new supplement regimen.
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