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Clearer Thinking If your thoughts have felt scrambled or your memory is slipping, cognitive clarity is often one of the most celebrated benefits
Energy The research is limited and far from a slam dunk but Cowling says higher doses of B 12 supplementation may increase energy, particularly if you have a deficiency or are at risk of a deficiency
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Paraesthesia, balance problems, or cognitive difficulties may persist despite normalising blood counts
The Short-Term Timeline: Days 3 to 7 By the end of the first week, the initial surge settles into a steadier supply of B12, and this is often when the more noticeable day-to-day changes appear
By 24 weeks , haematological parameters usually show significant improvement
