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Whilst injections bypass gut absorption, conditions like active Crohn's disease or coeliac disease may cause increased metabolic demands that could influence how quickly B12 is utilised
Speed and pressure Insert the needle quickly
This gives a practical default and keeps the calculator easy to use when you do not need a different dilution volume
Are other factors contributing
Do you need a prescription to buy vitamin B12
Low vitamin B12 levels can cause issues such as fatigue, anemia, and lack of focus
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