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However, clinical safety depends on factors such as dosage, route of administration, individual health status, and appropriate medical supervision
Individuals taking high-dose B12 supplementswhether oral, sublingual, or intramuscular injectionsmay develop elevated serum levels, particularly if supplementation exceeds physiological requirements
10.1093/cvr/cvr052 170 UddinM
Mann ER, Lam YK, Uhlig HH
Nguyen DV, Shaw LC, Grant MB
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