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Vitamin B12 is essential for normal blood formation, cellular metabolism, and neurological function
It lies adjacent to key structures such as the pituitary gland, optic chiasm, and ventricular system, which circulates cerebrospinal fluid (CSF)
Native collagen is a large protein that the body does not easily absorb
Moreover, certain medications commonly prescribed to older individuals, such as metformin and proton pump inhibitors, may hinder B12 absorption
To view a copy of this licence, visit About this article Cite this article Nawaz, A., Khattak, N.N., Khan, M.S
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