Black seed (Nigella)
Full ranking Dose tool Products (95)
Key facts
Daily Value (US FDA)—
Tolerable Upper Intake Level (UL)— Reference upper value (cited, not a UL): 5,000 mg
Median (Per day)700 mgP5 3 – P95 5,000
Products95
Sources: https://webprod.hc-sc.gc.ca/nhpid-bdipsn/atReq?atid=nigella.sativa&lang=eng · Health Canada NNHPD monograph: up to 5 g Nigella seed oil/day; 2.5 g per single dose
Daily dose across products (mg/day)
Reference upper value (cited, not a UL) 5,000
0.68 mglog scale · n=9510,000 mg
Label data from official national databases and brand websites, as declared; not lab-verified.
Common questions
Is there an official upper limit for Black seed (Nigella)?
No UL has been set. We use a cited reference upper value of 5,000 mg per day. It comes from the linked study or assessment and is not a regulatory limit. [source]
How much Black seed (Nigella) do products usually contain per day?
As of 2026-11-01, 95 products list a comparable daily dose (95 dose records; one product can have several). The median is 700 mg per day, and 90% of records fall between 3 and 5,000 mg. Figures come from labels and are not lab-tested. [source]
Top ranked
| Rank | Brand | Product | Per day | Score |
|---|---|---|---|---|
| 1 | NutraChamps Inc. | NutraChamps Black Seed Oil | 700 mg | 88.1 |
| 2 | North American Herb & Spice | Black Seed | 5,000 mg | 83.3 |
| 2 | Amazing Herbs | Black Seed Gummies 500 mg Orange | 500 mg | 83.3 |
| 2 | Country Farms | Black Seed Oil | 5,000 mg | 83.3 |
| 2 | Healths Harmony | Black Seed Oil | 1,000 mg | 83.3 |
For information only; not medical advice. Talk to a doctor or pharmacist before starting or stopping any supplement.