A method for long term stabilisation of long chain polyunsaturated fatty acids in dried blood spots and its clinical application

Conventional assays of omega-3 long chain polyunsaturated fatty acid (n-3 LCPUFA) status in humans involve venous blood collection and expensive, multi-step processes that limit their usefulness as screening tools. This study aimed to develop a capillary dried blood spot (DBS) system capable of protecting n-3 LCPUFA from oxidation for up to 2 months at room temperature (20–25 °C). We demonstrated that a DBS system comprising both an antioxidant...