l-carnitine with hypothyroidism A randomized, double-blind, placebo-controlled trial published in Endocrine Journal (2016) evaluated the effects of supplementation (990 mg twice daily for 12 weeks) in hypothyroid patients who continued to experience symptoms despite L-Carnitine in Mitochondria | Encyclopedia

There is some evidence that the body may store acetyl groups, by generating ALC from L-carnitine, for this particular reason

The mechanisms by which TMAO raises CV risk and accelerates atherosclerosis are not well understood, but studies have shown that TMAO arising from both choline and L-carnitine supplementation in mice may inhibit reverse cholesterol transport 35 and enhance foam cell formation in both arterial and peritoneal cavity 47

GLP-1 is a well-established target in the field of diabetes

In addition, the upstream signaling of autophagy induction (e.g., pmTOR and pAKT) was examined in PFOS-treated RTCs with and without additional l-Carnitine pretreatment