There's a reason L carnitine keeps showing up in PCOS research Because PCOS is closely tied to insulin resistance, inflammation, and metabolic dysfunctionand L carnitine plays a role in energy metabolism and fat utilization. L Carnitine: Benefits, Side Effects, FAQ, Sources, and Dosage L Carnitine has a range of benefits for women with PCOS but, a new study set out to look at carnitine's impact on some of PCOS key indicators. One of those benefits reported The Role of Lifestyle Interventions in PCOS Management: A Systematic Review