DiNicolantonio JJ, O’Keefe JH, Wilson W. Subclinical magnesium deficiency: a principal driver of cardiovascular disease and a public health crisis. Open Heart 2018;5:e000668. doi: 10.1136/openhrt-2017-000668.

The following sentence in the abstract ‘Certain individuals will need to supplement with magnesium in order to prevent suboptimal magnesium deficiency, especially if trying to obtain an optimal magnesium status to prevent chronic disease.’ should be: ‘Certain individuals will need to supplement with magnesium in order to prevent subclinical magnesium deficiency, especially if trying to obtain an optimal magnesium status to prevent chronic disease.'