Synopsis

Source of validity: Scientific
Rating (out of 5): 4

Trace minerals, including zinc, selenium, copper, and manganese, are scientifically recognized as important for male reproductive health. Among these, zinc is the most extensively studied and is essential for testosterone synthesis, sperm production, and overall testicular function. Multiple clinical trials and epidemiological studies have demonstrated that zinc deficiency can lead to hypogonadism, reduced sperm quality, and infertility in men. Selenium, another key trace mineral, is necessary for the formation of selenoproteins that protect sperm from oxidative damage; several studies have found that selenium supplementation can improve sperm motility and quality in subfertile men. Copper and manganese, though less studied, participate in antioxidant defense mechanisms that support cellular health within the male reproductive tract.

The scientific validation is strongest for zinc and selenium, with authoritative organizations such as the World Health Organization and the National Institutes of Health acknowledging their roles in male reproductive health. While not all trace minerals have direct, robust evidence for improving fertility or sexual function, the overall scientific consensus supports adequate intake of these micronutrients as part of maintaining male reproductive system health. However, excessive supplementation may be harmful, so recommended dietary allowances should be observed.

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