Reply to L Zheng et al

摘要

We thank Zheng et al for their interest in our article published in the Journal earlier this year on the relation between plasma alkylre-sorcinols and whole-grain intake (1). They query a number of aspects of the study and whether alkylresorcinols can really be considered to be biomarkers of whole-grain intake. They raise a number of points related to the random nature of the population of the WHOLEheart study and the correlations between reported whole-grain intake and plasma alkylresorcinols.