A new study published in the journal Andrology revealed that men who consumed 4 to 7 units (1 unit = 12.5 g of ethanol, which corresponds to 125 mL wine, 330 mL beer, or 30 mL spirits) per week had greater semen volume and total sperm count compared with those who drank between less than one unit and three units per week.
Similar to examinations on heart health and overall mortality, the team found a U-shaped association between alcohol and sperm concentration, meaning that men who drank very little and those who regularly binged tended to have no-to-low benefit whereas those in the middle showed a notable benefit. [...]
“On the other hand, different studies experimentally proved that alcohol has a detrimental effect at all levels of the male reproductive system: it interferes with the function of the hypothalamic-pituitary-testicular axis, impairing gonadotropin secretion with consequent decreasing of testosterone levels.”
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