intrinsic factor 10 The is absorbed by the IF-cobalamin complex and requires calcium: distal ileum Binds to the cubam receptor in the terminal ileum and is internalized)
The most common side effects of B12 injections are mild and temporary, including pain, redness, or swelling at the injection site, mild nausea or diarrhea, headache, dizziness, and itching near the injection area
Life Saver
primarily animal products
StatPearls [Internet], 2023 June Takaaki Sugihara, Masahiko Koda, Toshiaki Okamoto, Kenichi Miyoshi, Tomomitsu Matono, Kenji Oyama, Keiko Hosho, Jun-ichi Okano, Hajime Isomoto, Yoshikazu Murawaki