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Description
Suggested dosage can be repeated at 1 to 2 week intervals as indicated by the condition

Lohse P, Brewer HB 3rd, Meng MS, Skarlatos SI, LaRosa JC, Brewer HB Jr
By blocking NNMT, it prevents the methylation and degradation of nicotinamide, increasing the substrate available for NAD+ synthesis

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PMID 8969275
Too much alcohol can also prevent you from getting enough calories
