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Fourth Human Niagen Study That Demonstrates Effectiveness: A study published in the American Journal of Clinical Nutrition in 2018 concluded that 2,000mg of daily Niagen supplementation over a period of 12 weeks is safe

doi: 10.1016/j.fertnstert.2004.11.022 112 MeseguerMMartinez-ConejeroJOConnorJEPellicerARemohJGarridoN

First discovered in the 1970s, neuropeptide has since been studied for its effects on sleep cycles, mood regulation, and neuroprotection

It is used for peripheral neuropathy (pain in nerves, usually in lower limbs and hands)

We did not investigate the moderating effect of other metabolites as multiple statistical tests would have increased our type I error rate