Efficacy Long-term Dietary Nitrate Consumption to Plasma Nitrite Conversion

The objective of this study was to determine the chronic effects of beetroot juice supplementation on the acute (90-minute post nitrate consumption) efficacy of converting dietary nitrate to plasma nitrate and plasma nitrite in healthy middle-to-older aged adults. the investigators were also interested in determining the effect of this intervention on fasting levels of plasma nitrate and nitrite over time. Furthermore, the number of participants classified as "non-responders" was determined based on increases in plasma nitrite achieved using tolerable volumes of beetroot juice by other studies.