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You want to know whether those changes are the peptide doing its job, or just better lighting and a filter

Nicotinamide N-methyltransferase regulates hepatic nutrient metabolism through Sirt1 protein stabilization

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PLoS ONE 2012;9:e45979

As fat tissue grows and more NNMT is produced, higher amounts of hormones and pro-inflammatory signals are produced that are responsible for weight gain and other chronic diseases such as type 2 diabetes and cardiovascular disease. NNMT is responsible for converting nicotinamide (NA) into 1-methylnicotinamide (1-MNA), which takes it out of the NAD salvage pathway (see the diagram below)