Report Title

The Effects of 8 oz of Fresh vs. Commercial Orange Juice on Blood Pressure in Normotensive Males Aged 18-59

Collective Title

Master of Science in Nutrition and Dietetics Research Reports 2019


Background: Oranges have been known to possess numerous health benefits for humans as they are rich in vitamin C, A, and potassium. Citrus fruits contain a substance known as “citrus sinensis juice” which boosts immune function and aids in wound healing. Sinensis juice can also reduce blood pressure, inflammation, and risk of cardiovascular disease.

Objective: To determine the effects of drinking eight ounces of fresh vs. commercial orange juice on blood pressure in healthy normotensive males ages 18-59 years.

Design: Randomized, single-blinded, crossover study.

Participants: Healthy males aged 18-59 years, willing to keep the same lifestyle, refrain from taking medications or antioxidant supplements to control blood pressure, or drinking any type of orange juice for 30 days of participation during study.

Results: No significant change in blood pressure was observed in both intervention groups.

Statistics: Repeated measures ANOVA, linear mixed model (degradation), SPSS software (version 25).

Conclusion: No significant change was observed in four weeks of consumption of 8 fluid ounces fresh or commercial orange juice.

LLU Discipline

Nutrition and Dietetics


Nutrition and Dietetics


School of Allied Health Professions

First Advisor

Kyndra Woosley

Second Advisor

Gurinder Bains

Third Advisor

Lida Gharibvand

Fourth Advisor

Cory Gheen

Degree Name

Master of Science (MS)

Degree Level


Year Degree Awarded


Date (Title Page)




Library of Congress/MESH Subject Headings

Orange juice--Physiological effect.


Research Report

Page Count

23 p.

Digital Format


Digital Publisher

Loma Linda University Libraries

Usage Rights

This title appears here courtesy of the author, who has granted Loma Linda University a limited, non-exclusive right to make this publication available to the public. The author retains all other copyrights.


Loma Linda University Research Reports

Collection Website


Loma Linda University. University Libraries.