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You can also find information on how to purchase high-quality B12 supplements below: Intramuscular vs Subcutaneous If youve already decided on using B12 shots over oral or sublingual forms of B12 you are already ahead of the curve
In order for B12 to be absorbed from the gut, it requires a specific protein called intrinsic factor (IF)
NNMT is an enzyme that grabs nicotinamide and methylates it, turning it into a waste product called 1-MNA that gets cleared from the body
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