Background
T2D
HEART, TYPE 2 DIABETES
I have read the journal’s policy and the authors of this manuscript have the following competing interests: Authors declare support from the UK Medical Research Council, British Heart Foundation, Wellcome Trust, European Research Council, Swedish Research Council and National Institute for Health Research Cambridge Biomedical Research Centre for the submitted work. FI is a member of PLOS Medicine’s editorial board. PWF reports support for the submitted work from Novo Nordisk Foundation and consulting for Zoe Limited. JD reports grants, personal fees and non-financial support from Merck Sharp & Dohme (MSD), grants, personal fees and non-financial support from Novartis, grants from Pfizer and grants from AstraZeneca outside the submitted work. JD sits on the International Cardiovascular and Metabolic Advisory Board for Novartis (since 2010); the Steering Committee of UK Biobank (since 2011); the MRC International Advisory Group (ING) member, London (since 2013); the MRC High Throughput Science ‘Omics Panel Member, London (since 2013); the Scientific Advisory Committee for Sanofi (since 2013); the International Cardiovascular and Metabolism Research and Development Portfolio Committee for Novartis; and the Astra Zeneca Genomics Advisory Board (2018). ASB reports institutional grants outside the submitted work from AstraZeneca, Bayer, Biogen, BioMarin, Bioverativ, Novartis and Sanofi. Authors otherwise report no financial relationships with any organisations that might have an interest in the submitted work in the previous three years and no other relationships or activities that could appear to have influenced the submitted work.”Self-reported adherence to the Mediterranean diet has been modestly inversely associated with incidence of type 2 diabetes (T2D) in cohort studies. There is uncertainty about the validity and magnitude of this association due to subjective reporting of diet. The association has not been evaluated using an objectively measured biomarker of the Mediterranean diet.