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The connection between vitamin B12 deficiency and hair loss Research indicates that a deficiency in vitamin B12 can lead to various forms of hair loss, including telogen effluvium, a condition characterized by temporary hair shedding due to stressors or nutritional deficiencies

Subcutaneous injection in rodent models

It is primarily studied in cell culture and animal models and is not an approved human therapeutic

Poor planning leads to inconsistent use

Metformin may result in suboptimal oral vitamin B12 absorption by competitively blocking the calcium-dependent binding of the intrinsic factor-vitamin B12 complex to its receptor