Drinking beetroot juice in a cool room doesn't change how much nitrate is in your blood compared to drinking it in a warm room.

Scientific Claim

Nitrate-rich beetroot juice supplementation does not significantly alter plasma nitrate concentration during cool air exposure (20°C) compared to normothermic conditions (28°C) in healthy young males, with plasma nitrate levels of 524 ± 144 µM in cool conditions versus 619 ± 73 µM in normothermic conditions.

Original Statement

“Plasma [nitrate] increased above baseline at 3 h in BR-Norm and BR-Cool (both P < 0.01), with plasma [nitrate] higher in BR-Norm (619 ± 73 µM) versus BR-Cool (524 ± 144 µM) (P = 0.04; dz = 0.79)”

From study:Nitrate ingestion blunts the increase in blood pressure during cool air exposure: a double-blind, placebo-controlled, randomized, crossover trial

Evidence Quality Assessment

Claim Status

appropriately stated

Study Design Support

Design supports claim

Appropriate Language Strength

definitive

Can make definitive causal claims

Assessment Explanation

The study design allows for causal inference about this specific comparison. The language accurately reflects the measured difference without overgeneralization.

Evidence from Studies

Supporting (1)

Nitrate ingestion blunts the increase in blood pressure during cool air exposure: a double-blind, placebo-controlled, randomized, crossover trial

Randomized Controlled Trial

Human

2024 Jun 1

Contradicting (0)

No contradicting evidence found

Source Study

Nitrate ingestion blunts the increase in blood pressure during cool air exposure: a double-blind, placebo-controlled, randomized, crossover trial

Score: 60

DOI: 10.1152/japplphysiol.00593.2023

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