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But it is worth anticipating if you are using both compounds

If you have a thyroid condition and/or any of the risk factors of B12 deficiency as outlined above, there is a very good chance that you are not properly absorbing B12, even if you eat a diet rich in animal proteins, so it is important to get tested if you suspect a deficiency

Neuron 66(2):198204

In reality, the effect is often more subtleyou might not realize you've been eating smaller portions until you look back over a week or two

The PLP-binding domain is composed of a typical seven stranded -sheet surrounded by thirteen -helixes, which form the dimer interface