La L-carnitina viene riportata indietro nei mitocondri dove, con gruppi acilici, facilita l'utilizzo degli acidi grassi, tuttavia un eccesso di acetil-CoA pu bloccare questo processo
While supplements offer a more concentrated dose, you can get it naturally from things like red meat (especially beef), fish, poultry, and some dairy products
Interestingly, in healthy men, low dietary Se intake (13 g/day for ~100 days) decreased serum, erythrocyte, and seminal plasma (but not sperm) Se concentrations, without influencing serum androgen, LH, and FSH concentrations, and decreased concentration and total number of sperm, increased the proportion of tailless sperm, but decreased the proportion of headless sperm (185)
GHK-Cu works through a different mechanism, supporting the follicle environment rather than blocking DHT