| Effect | Decrease |
| Trial Design | Double blind |
| Trial Length | 1-6 months |
| Number of Subjects | 40 |
| Sex | Female |
| Age Range | 30-44, 45-64 |
| Body Types | Overweight |
Supplementation of _nigella sativa_ oil at 1g daily (two doses of 500mg) for the course of one month in females with rheumatoid arthritis was associated with a modest (9%) reduction in symptoms of arthritis as assessed by the DAS-28 rating scale. Morning stiffness, joint pain, and joint swelling were also all significantly reduced.
