Gerstein HC, Hart R, Colhoun HM, Diaz R, Lakshmanan M, Botros FT, Probstfield J, Riddle MC, Rydn L, Atisso CM, et al
Rare serious adverse events included gallbladder disorders and acute pancreatitis [53]
These synthetic forms are not biologically active in the same way as the natural L-isomer and can actually competitively inhibit the absorption and utilization of naturally occurring L-carnitine, potentially inducing a state of carnitine deficiency and worsening fatigue symptoms
Although it is an amino acid, L-carnitine is not used to make proteins
Propensity score matching in randomized clinical trials