When healthy young adults drank beetroot juice with vitamin C, their daily systolic blood pressure went down a bit compared to before they started the treatment.

Scientific Claim

Daily systolic blood pressure was significantly lower in healthy young adults who consumed nitrate-rich beetroot juice with vitamin C compared to baseline measurements within the same group.

Original Statement

“analyses of within-intervention changes showed a significant lower daily systolic BP in the [Formula: see text]+vitamin C (N+VC) group only (P=0.04).”

From study:Effects of dietary nitrate and vitamin C co-ingestion on blood pressure and hand-grip strength in young adults.

Evidence Quality Assessment

Claim Status

appropriately stated

Study Design Support

Design supports claim

Appropriate Language Strength

association

Can only show association/correlation

Assessment Explanation

The abstract states 'significant lower daily systolic BP' in the N+VC group for within-intervention changes. The study design supports descriptive claims about within-group changes. However, the small sample size (n=10) and lack of between-group comparison make 'association' more appropriate than 'causes'.

More Accurate Statement

“Daily systolic blood pressure was associated with a significant decrease in healthy young adults who consumed nitrate-rich beetroot juice with vitamin C compared to baseline measurements within the same group.”

Evidence from Studies

Supporting (1)

Effects of dietary nitrate and vitamin C co-ingestion on blood pressure and hand-grip strength in young adults.

Randomized Controlled Trial

Human

2024 Jun

Contradicting (0)

No contradicting evidence found

Source Study

Effects of dietary nitrate and vitamin C co-ingestion on blood pressure and hand-grip strength in young adults.

Score: 48

DOI: 10.1024/0300-9831/a000799

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