A 2016 systematic review and meta-analysis published in Obesity Reviews (Pooyandjoo et al.), which pooled data from nine randomised controlled trials, found that L-carnitine supplementation was associated with a statistically significant but modest reduction in body weight compared to placebo approximately 1.3 kg on average
Am J Obstet Gynecol 135: 322, 1976 154 Wurzel JM, Parks JS, Herd JE et al: A gene deletion is responsible for absence of human chorionic somatomammotropin
Elevated levels of liver enzymes gamma-glutamyl transpeptidase (GGT), alanine aminotransferase (ALT) and aspartate aminotransferase (AST) can indicate liver damage, as can elevated serum bilirubin (a breakdown product of the red blood cell component hemoglobin normally cleared by a healthy liver)
Sources: Cesarec V, et al
Your healthcare provider can assess your vitamin B12 status and recommend the appropriate dosage or alternative food sources to meet your needs
That's not unreasonable speculation