Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Black Seed (Nigella sativa) has a long history of use in traditional medicine, including for respiratory ailments. Scientifically, some studies have investigated its effects on the respiratory system, particularly the bronchi. The active compound, thymoquinone, has demonstrated anti-inflammatory, bronchodilatory, and antioxidant properties in animal models and in vitro studies. Small clinical trials have suggested that Black Seed oil may improve symptoms of asthma and allergic airway inflammation, possibly by relaxing bronchial smooth muscle and reducing inflammation. For instance, a 2017 randomized controlled trial in people with asthma found that Black Seed oil supplementation led to modest improvements in pulmonary function tests and asthma symptoms compared to placebo.

However, while these results are promising, the overall amount and quality of human clinical evidence are limited, with most studies having small sample sizes, short durations, and varying preparations of Black Seed. More rigorous and larger-scale research is required to confirm efficacy and to establish dosage and safety profiles. In summary, the use of Black Seed for supporting the bronchial system has both traditional and emerging scientific support, but current scientific evidence is moderate rather than strong.

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