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However, for various reasons, including dietary restrictions or absorption issues, many people do not get enough B12 from their food alone

However, its always a good idea to consult with a healthcare professional before starting any new treatment

While some people take probiotics hoping to restore their hair, Kalan said current evidence remains limited, and these products are only likely to help if an underlying digestive condition is affecting nutrient absorption

Unexplained hypercobalaminemia, particularly levels above 1,000 pg/mL, has been associated with liver disease, kidney dysfunction, myeloproliferative disorders, and certain solid cancers in multiple large-scale studies