While this vitamin isnt something that your body naturally produces, there are ways to fill the gaps
Hepatology (Baltimore) 78(6): 1966 [PubMed] Romano M, Vacante M, Cristaldi E, Colonna V, Gargante MP, Cammalleri L, Malaguarnera M (2008) L-carnitine treatment reduces steatosis in patients with chronic hepatitis C treated with alpha-interferon and ribavirin
For example, if you have an intolerance to oregano, you may consider trying a different antimicrobial herb, like artemisinin
Since GLP-1s were first approved for weight loss and the market took off, there has been significant concern about the relatively high rate of loss of lean body mass, particularly muscle, especially as compared with traditional weight loss techniques