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Vitamin B12 is an important nutrient used to boost vitality and general wellbeing
They must not be used in food, drugs, medical devices, in vitro diagnostics, or for any commercial application
Methylmalonic Acid (MMA) and Homocysteine Tests: Elevated levels of these substances can indicate early or functional B12 deficiency, even when serum B12 levels are borderline
[10] [12] High-dose ascorbic acid may diminish the therapeutic effects of certain chemotherapeutic agents, such as bortezomib, due to its antioxidant properties
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