What is the primary function of L-carnitine in the fat oxidation process?
L-carnitine acts as a carrier molecule that facilitates the transport of long-chain fatty acids into the mitochondria, which is essential for fat oxidation. It forms acylcarnitine esters with fatty acids, enabling their passage through the mitochondrial membranes. Without L-carnitine, fat oxidation is severely limited, regardless of the availability of free fatty acids in the bloodstream.
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