Black Seed (Kalonji) in NZ: A Guide to Nigella Sativa Seeds, Oil and Capsules

Black seed goes by many names: kalonji, black cumin, nigella, or its botanical name Nigella sativa. It is a tiny seed with a very long history, and more New Zealanders are now using it in the kitchen and as a supplement. This guide covers what it is, how the different forms compare, and what to be careful with.

What is black seed?

Nigella sativa is a flowering plant native to South-West Asia and the Mediterranean. Its small, black, slightly bitter seeds taste a little like onion, oregano and pepper. Despite the name "black cumin", it isn't related to the cumin in your spice rack.

A long history across cultures

• Ancient Egypt: seeds were found among the goods in Tutankhamun's tomb.
• South Asia: kalonji is a common spice in Indian and Bangladeshi cooking and appears in traditional Ayurvedic and Unani practice.
• Middle East: black seed has an important place in Islamic tradition and in Middle Eastern cooking and baking.

What's in black seed?

The seeds contain oil, protein and fibre. The compound researchers are most interested in is thymoquinone, found mainly in the oil. Research on black seed is ongoing, and study results don't automatically apply to any particular product.

Seeds, oil or capsules?

• Whole seeds – a spice for cooking. Cheap, versatile, and the most traditional form.
• Black seed oil – pressed from the seeds. Strong, peppery taste. Often used by the teaspoon or on the skin.
• Capsules – no taste and a fixed amount each time. Check whether a capsule contains oil, seed powder or an extract, and how many milligrams per serve.

Herbicare Black Seed Extract Capsules contain 100% Nigella sativa extract in plant-based capsules (90 per bottle, one a day with food).

Cooking with kalonji

• Sprinkle on naan, flatbread or bagels before baking
• Toast in oil at the start of a curry or dhal
• Add to pickles, chutneys and potato dishes
• Scatter over salads and roast vegetables

Using black seed oil on skin and hair

Some people mix a few drops of black seed oil with a carrier oil such as jojoba or almond for skin or scalp care. Always do a patch test first, because it can irritate sensitive skin.

Who should check with a professional first?

• Pregnancy and breastfeeding: don't use supplement amounts without medical advice.
• Blood-thinning medication: black seed may interact with it.
• Diabetes or blood-pressure medication: talk to your doctor or pharmacist first.
• Surgery: stop supplement use two weeks before a planned operation unless your doctor says otherwise.
• Children: ask a health professional before giving any supplement.

Frequently asked questions

Are black cumin, black seed and kalonji the same thing?
Yes. They are all names for Nigella sativa.

Is black seed the same as black sesame?
No. Black sesame is a different plant with a nutty flavour and flatter seeds.

How is black seed regulated in New Zealand?
Black seed supplements are sold as dietary supplements, which can't make claims to treat or prevent disease. Be cautious of any product that does.

Disclaimer: This article is general educational information only. It is not medical advice and is not intended to diagnose, treat, cure or prevent any disease. Herbicare products are dietary supplements, not medicines, and have not been evaluated by Medsafe. Traditional use does not necessarily reflect modern scientific evidence. Always read the label and follow the directions for use. If you have a health condition, are pregnant or breastfeeding, or take prescription medication, talk to a qualified health professional before starting any supplement. Individual results vary.