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Some of the risks can be serious, such as fluid buildup in the lungs or a blood clot
This can cause a gradual loss of vision and result in blind spots
While there's no one-size-fits-all answer, many health professionals recommend getting B12 injections every few weeks to maintain optimal levels
[18] Some proponents claim B12 injections enhance metabolism and promote fat loss by increasing energy levels, thereby encouraging greater physical activity and caloric expenditure
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