2022 Cochrane Review: Six RCTs in 1,089 men with subfertility taking 1,0003,000 mg/day carnitine for 8 weeks to 6 months found increased sperm motility and concentration at some timepoints but NO effect on live birth or pregnancy rates [3][47]
Karamouzis I, Sarafidis PA, Karamouzis M, Iliadis S, Haidich AB, Sioulis A, et al
Studi sulla distribuzione degli enzimi biosintetici indicano che diversi tessuti possono convertire TML in butirrobetaina, ma non tutti riescono a completare la conversione finale in carnitina (eccezioni principali: reni, fegato e cervello)
For optimal results, take L-carnitine approximately 30 to 60 minutes before exercise
See www
The mechanisms and potential therapeutic applications described remain under investigation and are not established for routine clinical use