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The Homocysteine Connection But there's another important piece to this puzzle: an amino acid called homocysteine
Most people are surprised by how little it hurts compared to a blood draw
Alston, T
Lorna P
after an intramuscular injection of 1,000 g of cyanoB 12 , about 150 g is ultimately retained in the body 15 Most vitamin B 12 -deficient individuals in the UK and other countries are treated with intramuscular vitamin B 12 , and vitamin B 12 replacement has been traditionally administered intramuscularly
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