Black Seed is an immunomodulator . The dose used was 1 gram twice a day. It was thought by the authors that larger doses would yield even better results. It also stimulates bone marrow cells, increases interferon production, protects cells from attacks by viruses, increases the number of antibody producing B cells, and even attacks tumor cells directly. This makes it effective against allergies and possibly autoimmune conditions.
Research shows it to be a strong anti-inflammatory.
A substance found in it called Nigellone suppressed asthma symptoms in the majority of patients given it orally. It also increases bile flow in the liver and helps to expel stones. Recent research has shown strong antibacterial and antifungal properties for this substance. It was tested primarily against gram-negative bacteria such as the infamous Pseudomonas aeruginosa, Pasturellas, Vibrios, Shigellas, and Enterobacteria . Scientists found it superior to five antibiotics usually used to treat these bacteria.