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Some people need monthly injections, while others may space them further apart once levels normalize
Once injected, vitamin B12 enters the bloodstream and binds to transport proteins that carry it into your cells
I highly recommend Ive tried a couple different types of injection kits and have been happy with them all but this one is my favorite
Deficiency is particularly common in elderly people, because the ability to absorb vitamin B12 can decrease with age ( Other people at risk of deficiency include those who have had intestinal surgery, including weight loss surgery
No published research validates these dose-response relationships in humans
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