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its impairment leads to accumulation of methylmalonic acid, which is associated with neurological damage
Symptoms may include fatigue, weakness, memory problems, difficulty concentrating, mood changes, numbness or tingling in the hands and feet, and difficulty maintaining balance
However, they are not always the right option for everyone
There are no documented serious adverse effects from taking excess vitamin B12
Low vitamin B12 levels are more common than you might think
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