Summary
This paper by Hord and colleagues, published in the American Journal of Nutrition in 2009, provides a systematic narrative review of nitrate and nitrite concentrations in foods, distinguishing between vegetable-derived sources and those from processed meats and cured products. It argues that the physiological context of nitrate intake — particularly from vegetables rich in antioxidants — is critical to understanding health outcomes, challenging the view that all dietary nitrate is harmful. The review likely contributed to a reappraisal of nitrate in the diet, supporting the case for vegetable consumption in cardiovascular health.
UK applicability
The findings are broadly applicable to UK dietary guidance and food labelling policy, particularly given ongoing UK debate around processed meat consumption, nitrate limits in drinking water, and the cardiovascular benefits attributed to vegetable-rich diets such as those recommended by the NHS.
Key measures
Nitrate and nitrite content (mg/kg or mg/L) across food categories; estimated dietary intake; comparison of vegetable versus processed meat sources
Outcomes reported
The paper quantified nitrate and nitrite concentrations across a range of food sources, particularly vegetables, processed meats, and water, and examined their physiological roles and health implications including cardiovascular benefit and potential cancer risk.
Topic tags
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