About the Authors

Paul Haggarty

p.haggarty@abdn.ac.uk

Affiliation Nutrition and Epigenetics Group, Rowett Institute of Nutrition and Health, University of Aberdeen, Aberdeen, United Kingdom

Gwen Hoad

Affiliation Nutrition and Epigenetics Group, Rowett Institute of Nutrition and Health, University of Aberdeen, Aberdeen, United Kingdom

Sarah E. Harris

Affiliation Centre for Cognitive Ageing and Cognitive Epidemiology, Medical Genetics Section, University of Edinburgh, Edinburgh, United Kingdom

John M. Starr

Affiliation Centre for Cognitive Ageing and Cognitive Epidemiology, Geriatric Medicine Unit, University of Edinburgh, Royal Victoria Hospital, Edinburgh, United Kingdom

Helen C. Fox

Affiliation Institute of Applied Health Sciences, University of Aberdeen, Aberdeen, United Kingdom

Ian J. Deary

Contributed equally to this work with: Ian J. Deary, Lawrence J. Whalley

Affiliation Centre for Cognitive Ageing and Cognitive Epidemiology, Department of Psychology, University of Edinburgh, Edinburgh, United Kingdom

Lawrence J. Whalley

Contributed equally to this work with: Ian J. Deary, Lawrence J. Whalley

Affiliation Institute of Applied Health Sciences, University of Aberdeen, Aberdeen, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: PH SH JMS HCF IJD LW. Performed the experiments: GH HCF IJD LW. Analyzed the data: PH. Contributed reagents/materials/analysis tools: PH. Wrote the paper: PH GH SH JMS HCF IJD LW. Carried out the statistical analysis: PH.