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• Randomised, double blind, placebo controlled four way crossover Online publication date confirmed against the PubMed publication date field. No competing print issue date on the record.

  A beetroot drink cancelled out the arterial stiffening that caffeine caused

  Twenty four healthy adults took nitrate rich or nitrate stripped beetroot, with and without caffeine. Caffeine alone raised two measures of arterial stiffness. Taken together with the nitrate rich drink, those measures sat at placebo levels.

  Food and Function · McLellan et al. · Loughborough University · 25 August 2026 · PMID 42639731

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