Mixed Random and Nonrandom Allocation, and Group Randomization Have Been Mislabeled and Misanalysed, Necessitating Reanalysis. Comment on Conner et al. KiwiC for Vitality: Results of a Randomized Placebo-Controlled Trial Testing the Effects of Kiwifruit or Vitamin C Tablets on Vitality in Adults with Low Vitamin C Levels. Nutrients 2020, 12, 2898

Nutrients. 2022 Sep 30;14(19):4062. doi: 10.3390/nu14194062.

¹ Department of Applied Health Science, Indiana University School of Public Health-Bloomington, Bloomington, IN 47405, USA.
² Department of Epidemiology and Biostatistics, Indiana University School of Public Health-Bloomington, Bloomington, IN 47405, USA.

Abstract

We read the report by Conner and colleagues that tested whether kiwifruit or vitamin C affected measures of vitality [...].