A deficiency or lack of Vitamin B12 is quite common in the over 65s, those diagnosed with pernicious anaemia, and in anyone who follows a vegan, strict vegetarian, or extreme/fad/restricted diet for a long time without taking a B12 supplement or eating fortified foods
ICH Q2(R2) explains general principles for checking whether an analytical method is suitable and reliable
This may be explained by several mechanisms by which vitamin B12 indirectly affects heart health, such as reducing the risk of hypertension, lowering homocysteine levels, and regulating the nervous system
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It also contributes to healthy red blood cells for improved oxygen transport