l carnitine what does it do is Carnitine? L-Carnitine | CAM Cancer

It also reduced food intake in animals that fasted overnight and in AL-fed mice at the onset of the dark phase (Extended Data Fig

And it's not that hard

But only the R-isomer (R-ALA) is naturally produced in the body and actively participates in mitochondrial energy metabolism.12 Some studies suggest that R-ALA may be more bioavailable than standard racemic ALA though the clinical significance of this difference is still under investigation.17 In addition, anecdotal reports and small studies indicate that R-ALA may be easier on digestion, with fewer gastrointestinal side effects than standard racemic ALA, especially at higher doses.18 However, R-ALA is chemically unstable on its own

PMID 32691289