Black Seed Oil: Does It Actually Work?
Last reviewed: 2026-02-21 00:00:00 +0000 UTC
Meta-analysis verifiedSnakeOilCheck earns commissions from qualifying purchases made through affiliate links on this site. Our editorial content and meta-analyses are produced independently and are not influenced by affiliate relationships.
Dosage Guide
| Dose Range in Studies | |
|---|---|
| Most-Studied Dose | |
| Best Form | |
| Timing | |
| Time to Effect |
Want to see the data? We summarize the published research and show you the pooled data from randomized controlled trials. Read our full methodology and dataset below
Review Protocol
For each claim, we searched for the most recent published systematic review or meta-analysis of randomized controlled trials evaluating black seed oil supplementation in human participants compared to placebo or no treatment.
When a full protocol file is available, it can be found at /supplements/black-seed-oil/protocol/.
Limitations
- Searches were limited to English-language publications. Non-English studies may be missing.
- Study identification and data extraction were assisted by AI tools. All extracted data has been manually verified against source publications.
- Small-study effects may inflate some pooled estimates, particularly for outcomes with fewer than 10 included trials.
- Supplement formulations, dosages, and populations varied across studies. Subgroup analyses were limited by the number of available studies per subgroup.
- Most included studies relied on published meta-analyses as the primary data source. Individual participant data was not available.
Conflicts of Interest & Disclosures
SnakeOilCheck earns commissions from qualifying purchases made through affiliate links on this site. Our meta-analyses are produced independently and are not influenced by affiliate relationships.
All claims are sourced from PubMed-indexed meta-analyses and RCTs. Every assertion includes a specific citation with PMID for independent verification.
AI-assisted research disclosure: Study identification and data extraction were assisted by AI tools. All extracted data has been manually verified against source publications.
Raw Data
Downloadable study ledger files (CSV, JSON) and verification logs will be published as we complete the transition to our new data format. In the meantime, all source meta-analyses are cited in the claim sections above with DOIs for independent verification.
License: CC BY 4.0
How to Cite
SnakeOilCheck. Black Seed Oil: Systematic Review and Meta-Analysis. snakeoilcheck.com/supplements/black-seed-oil/. Updated 2026-02-21 00:00:00 +0000 UTC.