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For example, one study found that after taking 1,000 mcg of oral vitamin B12, only about 1.3% (13 mcg) is absorbed into the bloodstream
What to expect
Careful not to go too low (seek instruction)
Expired Trimix can lead to unpredictable responses and may not achieve intended results
This is the most frequent effect and is the body's normal response to a small puncture
People with pernicious anemia or people who cannot absorb vitamin B 12 from their intestines will need injections of vitamin B 12 every one to three months indefinitely
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