Black seed oil is a traditional treatment for male infertility, and a systematic review of several studies found that it is, indeed, effective. The antioxidant effects of the oil significantly improved sperm count and other fertility markers in male subjects with fertility problems. The studies included in the review indicate that black seed can positively influence sperm and semen production, enhance the health of the reproductive organs, and regulate sex hormones. Infertile men should speak to a physician before choosing black seed oil as a fertility treatment, as there is insufficient evidence that black seed oil can cure infertility completely.

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