New vitamin D status testing procedure using dried blood spots will allow for larger number of participants in future studies
As part of the Food4Me pan-European project, a new sampling and analysis procedure for vitamin D has been developed. The technique enables unsupervised sampling of drops of blood from a fingertip onto a prepared card. A total of 3,778 valid measurements were made from 1,465 participants. The highest mean levels of vitamin D were found towards the end of July, whilst the lowest were towards the end of January. This is consistent with previous population survey data.