Study: Effects of Strawberries on Blood Pressure

Effect of Strawberry Powder on Blood Pressure in Individuals With Pre-Hypertension

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT01190319

Acronym

CSCBP

Enrollment

Registered

2010-08-27

Start date

2007-09-30

Completion date

2015-12-31

Last updated

2017-07-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Pre-hypertension

Keywords

blood pressure, strawberry, fruit phenolics, LDL oxidation, Flow mediated dilation (FMD)

Brief summary

The specific aim of the study is to determine whether a freeze dried powder provided by the California Strawberries Commission, can reduce blood pressure in patients with pre-hypertension. The powder is prepared by the California Strawberry Commission (CSC).

Detailed description

Primarily, we would like to find out whether freeze dried strawberry powder lowers blood pressure. In addition we would like to know if the strawberry alters the subject's blood cholesterol and the ability of the subject's blood vessels to relax.

Interventions

OTHERStrawberry Beverage

Beverage, daily for 8 weeks, 12g freeze-dried strawberry powder

OTHERPlacebo

Placebo beverage, 8 weeks

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

BASIC_SCIENCE

Masking

DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender

ALL

Age

25 Years to 65 Years

Healthy volunteers

Inclusion criteria

* Pre-hypertensive men and women (JNC 7 \[The Seventh Report of the Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure\] criteria) between the ages of 25 and 65 years who have no clinical evidence/history of cardiovascular, respiratory, renal, gastrointestinal or hepatic disease.

Exclusion criteria

* Subjects who: 1. are taking over the counter anti-oxidant supplements, 2. are taking prescription medications that may interfere with study procedures or endpoints, 3. have unusual dietary habits (eg., pica), 4. are actively losing weight or trying to lose weight, 5. are addicted to drugs or alcohol, 6. present with significant psychiatric or neurological disturbances, 7. have known allergies to strawberry, will be excluded from participating in this study. 8. Patients known to have glaucoma 9. Pregnant and/or lactating females

Design outcomes

Primary

Measure	Time frame
Change in blood pressure	8 weeks

Secondary

Measure	Time frame
Change in low density lipoprotein (LDL) oxidation	8 weeks
Change in flow mediated dilation (FMD)	8 weeks

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026