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Oral B12 supplements require daily intake and have much lower bioavailability only about 1 to 2% is absorbed without intrinsic factor.
There are no big, randomized clinical trials like what we have for prescription drugs or vaccines
While sometimes necessary for precise placement in certain areas, blunt-tipped microcannulas offer a safer alternative
That is because vitamin B12 plays an essential role in producing hormones, the chemical signals that your body sends to communicate with itself
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