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While fortified foods and oral supplements are alternative options, some individuals may prefer the direct and rapid absorption offered by IM injections
Where to inject Locate the deltoid muscle in your shoulder whose location is illustrated in the image to the left
In rare cases, a person can react to the injection solution
Understanding the complex absorption process of vitamin B12 helps explain why some individuals develop deficiency despite adequate dietary intake, and why different supplementation strategies may be necessary for different people
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