Which specific Allium member compound is cited as directly stimulating both testosterone and sperm count in comparison?
Garlic's s-allyl cysteine compound
When comparing the sulfur chemistry within the *Allium* genus, research concerning garlic indicates that its specific compound, s-allyl cysteine, possesses the capability to directly stimulate both testosterone production and sperm count. This contrasts slightly with the research focus on onions, which emphasizes quercetin's antioxidant role and the general benefit of sulfur compounds like S-methyl cysteine sulfoxide. The differentiation between specific sulfur compounds across relatives like garlic and onion highlights that slight variations in chemical structure within the genus can lead to differential documented primary effects on hormonal and sperm parameters, although both share a broader, sulfur-derived benefit.
