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Your dermatologist or physician can diagnose it by visual examination of your face

Common signs include: Feeling tired all the time, even after sleeping well Brain fog or trouble focusing Forgetfulness or memory lapses Feeling low, anxious, or irritable Pins and needles in your hands or feet Pale or washed-out skin Weakness or loss of strength If its not treated, low B12 can eventually lead to nerve damage and other long-term health issues

When B12 levels are low, your body may struggle to produce these essential neurotransmitters, contributing to feelings of anxiety, irritability, and emotional instability

High-affinity alkynyl bisubstrate inhibitors of nicotinamide N-methyltransferase (NNMT)