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Insufficient intrinsic factor production, common in older adults due to age-related absorption decline, can also lead to deficiency

The anti-pharma industry position is understandable, with many scandals that have plagued the industry (such as Vioxx, Oxycontin, and several others) without any accountability of the companies or their senior management

Nicotinamide N-Methyltransferase: More than a vitamin B3 clearance enzyme (in Eng)

Evaluation of plasma homocysteine and risk of age-related macular degeneration

No human clinical trials have been completed

The causes can be broadly categorised into exogenous (external) and endogenous (internal) factors, with the latter being of greater clinical significance