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2.B12 is combined with a protein manufactured by your body called Intrinsic Factor (IF) and gets absorbed by your liver
For intramuscular injections , which are common for administering Vitamin B12, needle lengths usually range from 5/8 inch to 1.5 inches
The treatment process is quick, virtually painless, and over within seconds
It is also involved in energy production, via roles in fatty acid and amino acid metabolism
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