Montmorency tart cherry and blueberry juice consumption may improve cardiometabolic outcomes including systolic blood pressure, sleep efficacy, and other indices in healthy individuals.
This protocol describes a 20-day, single-blind, randomized placebo-controlled trial testing the effects of 60 mL/day of Montmorency tart cherry juice or blueberry juice versus a flavored placebo on cardiometabolic outcomes in 45 healthy individuals. Primary outcome is between-group difference in systolic blood pressure from baseline to post-intervention; secondary outcomes include sleep efficacy indices, anthropometric measures, energy expenditure, and psychological wellbeing. The study is registered and approved but results are not yet reported.
This article is automatically generated from the structured evidence profile behind the claim above. Scores reflect the quality and quantity of available research, not clinical advice.
Montmorency tart cherry and blueberry juice consumption may improve cardiometabolic outcomes including systolic blood pressure, sleep efficacy, and other indices in healthy individuals. The current body of evidence comprises 1 study, including 1 randomized controlled trial. EvidenceHub rates the overall confidence at 42/100 (low).
The Claim
Montmorency tart cherry and blueberry juice consumption may improve cardiometabolic outcomes including systolic blood pressure, sleep efficacy, and other indices in healthy individuals.
This conclusion is most relevant to: 45 healthy individuals (no specific age or health condition detailed in abstract).
What the Research Shows
The conclusion draws on 1 linked study. Highlights from the cited literature:
- ▸Effects of Montmorency Tart Cherry and Blueberry Juice on Cardiometabolic Outcomes in Healthy Individuals: Protocol for a 3-Arm Placebo Randomized Controlled Trial. (International journal of environmental research and public health, 2021) —
How It Works
The proposed biological pathway:
- ▸Anthocyanins in Montmorency tart cherries and blueberries are absorbed and metabolized
- ▸Anthocyanins exert antioxidant and anti-inflammatory effects
- ▸These effects may improve endothelial function and reduce oxidative stress
- ▸Result: Potential reduction in systolic blood pressure and improvement in sleep and other cardiometabolic outcomes
Who Might Benefit
Evidence fit by population:
- ▸45 healthy individuals (no specific age or health condition detailed in abstract)
Recommended Dose
60 mL per day
Limitations & Caveats
Important context when interpreting this evidence:
- ▸This is a protocol paper; no actual results are reported, so efficacy cannot be assessed
- ▸Small sample size (n=45) may limit generalizability and statistical power
- ▸Single-blind design may introduce bias compared to double-blind trials
Frequently Asked Questions
What is the primary outcome of this study?▼
The primary outcome is the between-group difference in systolic blood pressure from baseline to post-intervention after 20 days of juice consumption.
How much juice do participants consume daily?▼
Participants consume 60 mL per day of either Montmorency tart cherry juice, blueberry juice, or a placebo.
Does this study measure sleep outcomes?▼
Yes, sleep efficacy indices are included as a secondary outcome measure.
Is this study completed and published with results?▼
No, this is a protocol paper describing the planned trial; results are not yet available.
References
- 1.Sinclair J, Shadwell G, Dillon S, Allan R, Butters B, Bottoms L. “Effects of Montmorency Tart Cherry and Blueberry Juice on Cardiometabolic Outcomes in Healthy Individuals: Protocol for a 3-Arm Placebo Randomized Controlled Trial..” International journal of environmental research and public health, 2021. PMID: 34574679 DOI: 10.3390/ijerph18189759