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Meeting The Criteria For An NHS Prescription To get B12 injections on the NHS, your blood test results need to show a confirmed deficiency, falling below a specific level
Anyone with low potassium levels, kidney disease or lung disease should NOT have Vitamin B12 injection shots
Then the shortage eased
One reason is being low in a type of compound produced within the stomach called intrinsic factor (a type of glycoprotein), which combines with vitamin B12 once consumed in order to allow it to be absorbed
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