Some older studies have evaluated NAD+ at high doses (1-2g daily) for conditions such as chronic schizophrenia, but no improvement was noted in these studies.3 This may be because NAD+ is expected to have poor oral bioavailability.12 For this reason, when trying to boost NAD+ levels using an oral route, precursors such as nicotinamide or nicotinamide mononucleotide are typically used instead of NAD+
This covers the time our providers spend assessing your health, reviewing your medical history, and determining whether Vitamin B12 injections are appropriate for your needs
Hsieh J, Nakashima K, Kuwabara T, Mejia E, Gage FH
Sigma-Aldrich, Madrid, Spain) and cultured in RPMI 1640 medium supplemented with 10% heat-inactivated FBS, penicillin, streptomycin, L-glutamine, and 50 U/mL of human recombinant interleukin 2 (IL2) [49]