Optimal DX FYI: Gut Microbes Increase TMAO Frontiers Ameliorating effects of L carnitine and synbiotic co supplementation on anthropometric measures and cardiometabolic traits in women with obesity: a randomized controlled clinical trial Mechanisms for Insulin Resistance: Common Threads and Missing Links: Cell 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.