Effects of 7 d high-nitrate (HN) diet on systolic blood pressure (SBP) among nineteen healthy women (mean age 20 years, mean BMI 22·5 kg/m2), Exeter, UK, September–December 2012. Values are means with standard deviations represented by vertical bars; the dashed lines illustrate individual responses. After the HN diet, SBP was reduced significantly (P=0·008)