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is sublingual b12 as effective as injections vs Pills: Richmond's Complete Guide B12 Shots: Benefits, Uses, Safety,
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Blood pressure monitoring is advisable

Acta Haematol 1951;5:302-17

I am sorry to hear you have suffered from bad periods - I have heard all sorts from other ladies over the years and it really does impact on your life

Subcutaneous administration achieves 7085% bioavailability compared to 4050% for oral routes due to hepatic first-pass metabolism

Vitamin b12 is also called cobalamin

This post covers the part that matters just as much: how much, how often, and how to actually use it
