l-carnitine bodybuilding effects is effective for both fat loss and athletic performance. However, oral L-carnitine has lower bioavailability and can be harmful at high doses, so it should be avoided. Even cardiologists give IV l carnitine benefits for fat
Description
J Physiol 554:255261

The combination of L-Carnitine and caffeine is generally regarded as safe and effective for healthy individuals

Alterations in mitochondrial DNA copy number and the activities of electron transport chain complexes and pyruvate dehydrogenase in the frontal cortex from subjects with autism

A.RozenfeldI.SheinbergN.KabotS.ShawA.et al (2021)
