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NAD+ metabolism and its roles in cellular processes during ageing
Malabsorption of vitamin B12, resulting from structural or functional damage to the stomach, where intrinsic factor is secreted or to the ileum, where intrinsic factor facilitates vitamin B12 absorption
Patients should avoid self-sourcing it online and speak with a qualified provider before considering any longevity or metabolic compound
Peripheral neuropathy, subacute combined degeneration of the spinal cord, or cognitive impairment indicate more advanced deficiency and generally require intensive treatment over extended periods
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