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Greenfield, B
It puts vitamin B12 straight into your blood, skipping the usual digestion steps
Vitamin B12 injections usually contain high levels of this substance, which works to raise vitamin B12 levels in the blood
Bone health A study published in the Journal of Bone and Mineral Research (5) found that low B-12 was linked with poor bone mineral density, suggesting a role for the vitamin in bone formation
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