A recent comprehensive article on Magnesium concluding with ' A greater public health effort is needed to inform both the patient and clinician about the prevalence, harms and diagnosis of subclinical magnesium deficiency.' Published Nov 2017
It would be nice to see a more reliable test readily available in the UK as described. The best test, not really good enough, I have found is the red cell test done by BioLab in London. Anybody know how to access a better one?