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Take Vitamin D with meals for better absorption, while Vitamin B12 is best taken on an empty stomach
in Cell Metabolism , increased NAD availability stimulates PGC-1 through SIRT1 activation, leading to enhanced mitochondrial function and improved metabolic flexibility (Cant et al., Cell Metabolism )
Ilanne-Parikka P, Eriksson JG, Lindstrm J, Hmlinen H, Keinnen-Kiukaanniemi S, Laakso M, Louheranta A, Mannelin M, Rastas M, Salminen V, Aunola S, Sundvall J, Valle T, Lahtela J, Uusitupa M, Tuomilehto J
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