Normally, the body's storage and re-utilization of vitamin B₁₂ prevents a primary or secondary deficiency from occurring until after about

Name: Normally, the body's storage and re-utilization of vitamin B₁₂ prevents a primary or secondary deficiency from occurring until after about
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Vitamin B₁₂ is stored in the liver and can be re-utilized efficiently, so a deficiency typically does not manifest until after several years, often around 3 years, if dietary intake is insufficient.

Normally, the Body's Storage and Re-Utilization of Vitamin B₁₂ Prevents