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It can aid in the treatment of optic nerve degeneration which can result in loss of central vision and also treats poor vision

Goel MS, McCarthy EP, Phillips RS, Wee CC

Since the gut is a gateway for environmental pathogens to enter, and the CNS and ENS participate in pathogen resistance mechanisms, the microbial flora and their metabolites are essential for promoting tight-junction expression and maintaining bloodbrain barrier (BBB) function ( Drosophila model of AD (Wu et al., 2017)

Vitality is also the only oral NAD+ supplement with clinical data showing stronger intracellular results than subcutaneous NAD+ injections at a much lower cost

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If your insurance refuses to cover it, you may order a home test kit for around $60