Figure 4From: Acute ingestion of a novel whey-derived peptide improves vascular endothelial responses in healthy individuals: a randomized, placebo controlled trial Plasma total nitrites/nitrates (NOx), normalized to baseline, responses to ingestion of a whey peptide (NOP-47) or Placebo. There was a significant main time effect. Significant differences between NOP-47 and Placebo (*P < 0.05).Back to article page