Evidence brief · Supplement
Black Seed Oil (Nigella sativa) for Glucose / HbA1c
Evidence grade C — Modest
- Overall grade
- Grade C
- Last revised
- 1
- graded outcome
- 0
- references listed
Assembled by the app from other entries in this library. It adds no evidence of its own — follow the links to the entries it draws on.
1 at grade C — 1 graded row
What is known
Each outcome with its grade (how strong the evidence is, A to D), the size of the effect where the entry records one, and how often studies agree.
- Glucose / HbA1cEvidence grade C
Modest
Smallmixed
What is uncertain
Read off the same rows as above. Nothing here is added that the entry does not itself record.
- Thin evidence: Glucose / HbA1c (grade C).
The evidence in words
The verdict
For glucose / hba1c, Black Seed Oil (Nigella sativa) earns evidence grade C (small effect, mixed consistency) — the evidence is limited or mixed. Modest
How it might work
Thymoquinone has antioxidant and anti-inflammatory actions and modest effects on blood pressure, glucose handling and lipids.
How to use it
Safety & cautions
Generally well tolerated; can add to glucose- and blood-pressure-lowering medications, and may affect drug metabolism at high doses.
Bottom line
A genuinely bioactive traditional oil with modest, real cardiometabolic benefits — reasonable adjunct, not a cure-all.
Goes with
- Black Seed Oil (Nigella sativa)Read the full Black Seed Oil (Nigella sativa) monographEvidence grade C
Related reading
Entries that share this one's tags or conditions.
- Black Seed Oil (Nigella sativa) for Blood pressureEvidence grade C — ModestEvidence grade C
- Black Seed Oil (Nigella sativa) for LDL cholesterolEvidence grade C — ModestEvidence grade C
- Black Seed Oil (Nigella sativa): side effects, safety & interactionsGenerally well tolerated; can add to glucose- and blood-pressure-lowering medications, and may affect drug metabolism atEvidence grade C
- Beetroot / Dietary Nitrate for Blood pressureEvidence grade B — Modest reductionEvidence grade B
Sources
This entry lists no references of its own — it is assembled from the entries it links to, whose sources are on their pages.
Last revised . A grade is this entry's reading of the evidence, not medical advice.