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This specific method may provide even faster results than both the pills and the shots

They found that it wasnt possible to determine a clear lower limit for which any of these biomarkers can reliably indicate B12 deficiency, but that daily intakes above 4.0 g appear to have no additional benefit

Each works through a different mechanism, and the evidence levels are very different

When your body gets the right amount of B12, it performs more efficiently, making it easier to stay active, eat mindfully, and stick to your fitness plan

But, being careful is key, mainly for those at high risk. Vitamin B12 is key for making myelin, the fatty stuff around nerve fibers