While vitamin B12 is naturally found in certain foods, some individuals may have difficulty absorbing it effectively, leading to a deficiency that can result in fatigue, weakness, and other health issues
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Statistical tests were two-sided
doi: 10.1007/s00394-021-02770-2 22 MaratheCSRaynerCKJonesKLHorowitzM
Biochem Biophys Res Commun 231:488493 Aureli T, Puccetti C, Di Cocco ME, Arduini A, Ricciolini R, Scalibastri M, Manetti C, Conti F (1999) Entry of [(1,2-13C2)acetyl]-l-carnitine in liver tricarboxylic acid cycle and lipogenesis: a study by 13 C NMR spectroscopy in conscious, freely moving rats