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PMID: 37876311
On top of that, they give you 0.26-0.30 mg of nicotinamide mononucleotide (NMN) per 100g [18]

Analysis of seized peptide and proteinbased doping agents using four complimentary methods: liquid chromatography coupled with time of flight mass spectrometry, liquid chromatograph-ultraviolet, Bradford, and immunoassays

Clinical Evidence: Stronger Than Most, But Inconsistent A 2015 meta-analysis by Gauthier et al