This reaction is catalyzed by glutathione S -transferases
Total and LDL cholesterol levels increased in the L-carnitine group, and L-carnitine supplementation was also associated with 9.3% greater carotid arterial plaque stenosis in males who ate less red meat and had lower baseline stenosis and total plaque volume than other participants.26 A 2018 study including participants on a nonvegetarian diet found that 24 weeks of supplementation with 1,500 mg of L-carnitine increased fasting blood levels of carnitine and increased levels of TMAO tenfold but did not increase lipids, inflammatory markers, or other markers of atherosclerosis in healthy, omnivore, nonsmoking, physically active women ages 65 to 70 when compared with placebo

Ariceta G, Camacho JA, Fernandez-Obispo M, Fernandez-Polo A, Gamez J, Garcia-Villoria J, Lara Monteczuma E, Leyes P, Martin-Begue N, Oppenheimer F, Perello M, Morell GP, Torra R, Santandreu AV, Guell A, Grupo T-CiS.bcn (2015) Cystinosis in adult and adolescent patients: recommendations for the comprehensive care of cystinosis
Stick to the recommended dosage
Benefits: Treatment of L-Carnitine deficiency
Nausea, fullness after small meals, occasional vomiting, constipation, and reflux are common