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Food & Drug Administration

Food and Drug Administration) Dietary deficiency of vitamin B 12 occurring in strict vegetarians and in their breastfed infants (isolated vitamin B 12 deficiency is very rare) Malabsorption of vitamin B 12 resulting from damage to the stomach, where intrinsic factor is secreted, or damage to the ileum, where intrinsic factor facilitates vitamin B 12 absorption

4 There is no universal standard as to how these combination treatments can be used, which has led to many differing treatment regimens

Maintains a youthful, radiant complexion by reducing fine lines and wrinkles

Tesfaye, S

Comput Struct Biotechnol J (2023) 21:66576