About the Authors

Martin de Bock

Affiliation Liggins Institute, University of Auckland, Auckland, New Zealand

José G. B. Derraik

Affiliation Liggins Institute, University of Auckland, Auckland, New Zealand

Christine M. Brennan

Affiliation Liggins Institute, University of Auckland, Auckland, New Zealand

Janene B. Biggs

Affiliation Liggins Institute, University of Auckland, Auckland, New Zealand

Greg C. Smith

Affiliation Department of Molecular Genetics, University of Auckland, Auckland, New Zealand

David Cameron-Smith

Affiliation Liggins Institute, University of Auckland, Auckland, New Zealand

Clare R. Wall

Affiliation Department of Nutrition, University of Auckland, Auckland, New Zealand

Wayne S. Cutfield

w.cutfield@auckland.ac.nz

Affiliation Liggins Institute, University of Auckland, Auckland, New Zealand

Competing Interests

Note that Douglas Pharmaceuticals have provided the capsulated psyllium and placebo for this study, but had no role in study design, data collection and analysis, decision to publish, or preparation of this manuscript. Thus, this does not alter the authors’ adherence to all the PLoS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: MdB WSC. Performed the experiments: MdB CMB JBB CRW GCS. Analyzed the data: JGBD. Wrote the paper: MdB JGBD WSC. Provided fundamental input during analyses and during manuscript writing: DC-S.