rct
    2020
    High Quality

    Effect of inorganic nitrate on exercise capacity, mitochondria respiration, and vascular function in heart failure with reduced ejection fraction

    Woessner MN, Neil C, Saner NJ, Goodman CA, McIlvenna LC, Ortiz de Zevallos J

    Published in Journal of Applied Physiology

    Methodology

    Randomized, double-blind crossover trial of nitrate-rich beetroot juice (16 mmol nitrate/day) versus nitrate-depleted placebo for 5 days with 2-week washout in patients with HFrEF

    Key Findings

    Plasma nitrate rose 933% and nitrite 94% after supplementation, but improvements in exercise capacity, endothelial function and mitochondrial respiration were limited.

    Conclusions

    Short-term inorganic nitrate markedly raises NO precursors but yields limited functional gains in HFrEF.

    Limitations

    Small sample (16, predominantly men), 5-day supplementation only.

    Related Health Concerns

    Study Details

    Year:2020
    Sample Size:16
    Quality Score:7/10

    Disclosures

    Funding

    Not reported

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