User:DeclanMountford
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NMN and NR together provide a comprehensive strategy to boost HIIT NAD+ production naturally. These complementary NAD+ precursors utilize distinct mechanisms - nicotinamide mononucleotide via Slc12a8 transporter and nicotinamide riboside through NRK1 NRK2 enzymes. This dual supplementation optimizes cellular energy production while combating NAD+ decline with age.