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Studies have reported OCTN2 expression in respiratory epithelial cells and alveolar macrophages, which is especially high in the upper lung region [301], and OCTN2-mediated carnitine uptake plays an important role in maintaining respiratory cilia beating and airway mucociliary clearance function, helping to remove excess mucus and potentially harmful substances from the airway [302]

"Fishy" Body Odor: Rarely, high intake of L-Carnitine can lead to a harmless but noticeable body odor resembling fish (trimethylaminuria)

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Carnitine is a nutrient that naturally occurs in the body and is essential to the process of normal fat metabolism