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we mean significant, sometimes dramatic shifts in efficacy and experimental clarity

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The research is inconclusive regarding whether vitamin C reduces the chance of developing cancer, prevents heart disease, prevents eye disease such as macular degeneration, or prevents the common cold

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NNMT (nicotinamide N-methyltransferase) is a cytosolic enzyme that catalyzes a specific methylation reaction: it transfers a methyl group from S-adenosylmethionine (SAM) to nicotinamide, producing two products 1-methylnicotinamide (1-MNA) and S-adenosylhomocysteine (SAH)