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Common signs are fatigue, over appetite, exhaustion and dehydration
Salatzki, J
Because vitamin B12 helps the body produce brain chemicals that can affect mood and cognitive functions, a deficiency may lead to anxiety or depression
Methylmalonic acid, if not properly handled by B 12 , remains in the myelin sheath, causing fragility
Dec 10 2020;10(12):e041290
Treatments are usually administered over several weeks to gradually restore NAD+ levels while supporting metabolic balance
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