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Vendor technical sheets and primary studies report selectivity over related methyltransferases and enzymes of the NAD salvage pathway [1,6,7]

However, when they added 1.5 g per day of lysine to their existing iron supplementation, there was a significant increase in mean serum ferritin concentrations, and the women experienced a 39 percent decrease in hair shedding after six months of treatment

Elevated NAD+ levels activate sirtuins, particularly SIRT1, which are NAD+-dependent deacetylases that regulate numerous metabolic processes including fat oxidation, glucose metabolism, mitochondrial biogenesis, and cellular stress responses