daily amount of l-carnitine Thorne Research | L-Carnitine Supplement Carnitine | The Meno Clinic

The suggestion that carnitine deficiency may lead to frailty through mitochondrial dysfunction (117) has been examined in one trial

One placebo-controlled, double-blind, cross-over trial in 86 subjects with fertility issues found that supplementation with L-carnitine (2 g/day) for two months improved sperm quality, as evidenced by increases in sperm concentration and motility (111)

Helps to Build Lean Muscle Mass

In a double-blind, placebo-controlled, dose-titration study, 1 to 3 g/day of oral propionyl-L-carnitine for 24 weeks was well tolerated and improved maximal walking distance in patients with intermittent claudication (64)

Systemic primary carnitine deficiency: an overview of clinical manifestations, diagnosis, and management