Lowering of oxidative stress improves endothelial function in healthy subjects with habitually low intake of fruit and vegetables: A randomized controlled trial of antioxidant and polyphenol-rich blackcurrant juice


  • Double-blind, placebo-controlled,  parallel group study of 66 healthy adults who habitually consume less than two portions of fruit and vegetables per day. 
  • Participants consumed either placebo (flavoured water) or blackcurrant juice four times a day for six weeks. 
  • Blackcurrant juice group observed increased flow mediated dilation (blood flow)
  • Blackcurrant group observed reduced oxidative stress and improved vascular health

Published Free Radical Biology and Medicine, 2013

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