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Mild to moderate deficiencies of vitamin B12 are fairly common, with about 40% of people in Western populations reported to experience them [1]
Shots may help reduce or prevent this damage
This autoimmune condition attacks the intrinsic factor, a protein your stomach makes that's required for B12 absorption
Johnson, M., et al
By delivering the vitamin straight into your muscle, your body can use 100% of the dose immediately
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