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Even if a person is not deficient in Vitamin B12, as defined by a blood test, the symptoms of a B12 deficiency may include: Feeling weak or tired Problems with vision Headaches Pins and needles Reduced mental functions Wish to check you vitamin B12 levels
Boost Immune Function Vitamin B12 is essential for producing white blood cells, which are pivotal for proper immune system functioning
6.Dietary sources of vitamin B-12 and their association with plasma vitamin B-12 concentrations in the general population: the Hordaland Homocysteine Study
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