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Endothelial Protection
There are three common forms of vitamin B12 used in injections: cyanocobalamin, hydroxocobalamin, and Methylcobalamin
Human efficacy unproven
Many of these home kits only measure total B12, and not other markers in your blood, such as methylmalonic acid or homocysteine, which are better signs of deficiency, Ren says
If several of these apply to you, its worth getting tested before starting any treatment
Other examples of psychological problems are depression, anxiety, and confusion
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