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The difference in accuracy is substantial
For most people, we definitely recommend SQ over IM
by Jack Norris, RD Contents Introduction Brief History of B12 Recommendations for Vegans Government Recommendations Cyanocobalamin Absorption Vegan Health B12 Recommendations Appendix A
for some of the changes, it has been demonstrated that they increase the concentration of the so-called inactive B12, but not the active B12
It also helps to form myelin sheath to protect nerve cells and conduct nerve impulses, and lowers homocysteine levels thereby reducing the risk of strokes or heart attacks
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