Whether you drink beetroot juice or not, you feel equally cold when you're in a cool room.
Scientific Claim
Nitrate-rich beetroot juice supplementation does not significantly alter thermal sensation during cool air exposure (20°C) in healthy young males, with no differences observed between nitrate-supplemented and placebo conditions.
Original Statement
“Thermal sensation was unchanged over time in PL-Norm and BR-Norm (all P > 0.05). In PL-Cool and BR-Cool, thermal sensation, mean skin temperature and forearm skin temperature were lower at 1, 2, and 3 h versus baseline (all P < 0.01, Table 1), but no differences were observed between PL-Norm and BR-Norm or between PL-Cool and BR-Cool at any time point (all P > 0.05; Table 1).”
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 lack of significant 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