groin area pain b b12 injection How to Inject Vitamin What Causes Lower Back and

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This causes nerve damage, leading to pain, tingling, and numbness

However, scientific research shows that very high-dose oral B12 (1,000-2,000 mcg) can be effective for some, as about 1% can be absorbed without intrinsic factor

[DOI] [PMC free article] [PubMed] [Google Scholar] 180.Yang X, Zhang X, Heckmann BL, Lu X, Liu J

Injection A person with a severe vitamin B12 deficiency or difficulty absorbing vitamin B12 may require an injection of vitamin B12, which some people refer to as a B12 shot

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