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Vitamin B12 separates from IF in the terminal ileum if sufficient calcium ions are present.It then enters the gastrointestinal mucosal cells, attaching itself with transcobalamin I and II for transportation to the various tissues

Heffernan M., et al

Under poor storage conditions (room temperature, exposure to moisture or light), degradation can occur much sooner

Always prescribed

Signs and symptoms of low blood sugar may include: dizziness or lightheadedness, blurred vision, anxiety, irritability or mood changes, sweating, slurred speech, hunger, confusion or drowsiness, shakiness, weakness, headache, fast heartbeat, and feeling jittery

2A) and the low-ILF3 (Fig