Contraindicated groups: Pregnant women, lactating women and children are prohibited from using it
Here is who should avoid it: Individuals with a history of seizures , L-Carnitine may lower the seizure threshold in some people
I would encourage to go on clinical trials for this
Am J Physiol Metab 308(8):E641E649 Rm C (1978) Evidence for a splanchnic sodium input monitor regulating renal sodium excretion in man lack of dependence upon aldosterone
Diabetes Care 34(Supplement_2):S279-84 Gerstein HC, Colhoun HM, Dagenais GR, Diaz R, Lakshmanan M, Pais P et al (2019) Dulaglutide and cardiovascular outcomes in type 2 diabetes (REWIND): a double-blind, randomised placebo-controlled trial
A cross-talk between metabolic intermediates produced by aerobic glycolysis, and enzymes belonging to the carnitine cycle is also present in cancer cells