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By blocking NNMT, 5-amino-1MQ promotes an increase in nicotinamide adenine dinucleotide (NAD+), a cofactor essential for cellular metabolism

Many nutrients have their action INSIDE the cell, which means that testing serum and blood levels just give us an indication of what may be available but that is assuming everything else is working properly: cellular activity, enzyme activity, receptor activity, etc

This distinction is a key reason why a single peptides research profile cant be generalized across both tissue types the mechanism relevant to one doesnt necessarily transfer to the other

Are there age-specific considerations for vitamin B12 supplementation

In patients with Parkinsons disease on levodopa monotherapy, vitamin B supplementation can increase peripheral levodopa metabolism and thus reduce the amount of levodopa reaching the central nervous system, worsening symptom control