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But I have come across similar reports describing something similar to a 48 hour half-life

The Vital Role in the Body Vitamin B12 plays a critical role in red blood cell production, DNA synthesis, and nerve function

Remember, its better to buy B12 in dry form, because in this way its remarkably stable to both heat and light

In a healthy, well-functioning body, homocysteine is quickly recycled back into methionine to keep the cycle moving smoothly

These medications reduce gastric acid production, which is necessary for releasing dietary vitamin B12 from food proteins and for maintaining the stability of the B12-intrinsic factor complex

Symptoms in addition to mouth ulcers You should inform your doctor if you have any other symptoms in addition to the mouth ulcers