Supplemental L-Carnitine, especially liquid L-Carnitine, is widely used to support: Fat metabolism Workout performance Endurance Recovery Energy production A Complete Guide for Beginners Can L-Carnitine Cause Side Effects
Your L-carnitine levels are influenced by both what you eat and how much your body produces
A critical step in this process of burning fat (oxidising long chain fatty acids), is the transport of fatty acids into the mitochondria (where fatty acids are turned into CO2 and ATP (energy)
doi: 10.1152/japplphysiol.01011.2006
In these cases, L-carnitine supplements may help reduce symptoms such as fatigue and weakness
For instance, a 2017 review showed that taking L-carnitine for 3 days had no effect on markers of brain function including reaction time, vigilance, immediate memory, and delayed recall in young adults without cognitive impairment