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Diet: heavy alcohol use and certain nutrients can lower your B12, so you may notice effects fading sooner
Because 10 to 30 percent of older people may be unable to effectively absorb vitamin B 12 naturally occurring in foods, those older than 50 years should meet their RDA mainly by consuming foods fortified with vitamin B 12 or a supplement containing vitamin B 12
After the deficiency is fixed, injections might be needed only once a month
It does
At first, injections are given daily or every other day to quickly increase vitamin B12 levels
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