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High dose oral supplementation is an effective alternative to parenteral treatment Randomized studies of daily high oral doses of 1,0002,000 g have shown equivalence or superiority to injected B 12
Increasing your intake of vitamin B12 through foods or supplements can help prevent deficiency, which may improve side effects like low energy levels and fatigue
An IV treatment can help you start recovering from your symptoms
It is not FDA-approved, and this page covers research evidence rather than human-use guidance
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