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As Kannt & Pfenninger highlight in Frontiers in Physiology , maintaining NAD levels is a cornerstone of metabolic health, supporting mitochondrial function and improving resistance to metabolic stress (Kannt & Pfenninger, Frontiers in Physiology )
People sometimes mention mild headaches, nausea, digestive changes, extra energy disrupting sleep, or minor irritation at the injection site
It involves the rapid growth of the endothelium (the inner lining of blood vessels), leading to blood flow issues due to the excess number of cells
PMID:34368359 Kannt A, et al
Your doctor will give you the right dosage of vitamin B12 supplement, especially if you will inject it
However, as the science surrounding aging and metabolism continues to evolve, clinicians are discovering ways to amplify and extend those benefits
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