Skip to main content
OpenTrials
Completed

NCT Number: NCT04057495

The Acute Effect of Mango Intake (Mangifera Indica L.) on Blood Pressure and Blood Glucose

In the current proposal the investigators seek to evaluate the acute effects of mango intake on blood pressure, blood glucose and insulin in postmenopausal women between 50 and 70 years old.

Completed

Looking for future studies?

Notify Me

Key information

Age range

50 year–70 year

Sex eligibility

Female

Study type

Interventional

Phase

Not applicable

Primary location

Regal Human Nutrition Research Center

Davis, California, 95616, United States

About this study

Cardiovascular disease (CVD) is the leading cause of mortality in the U.S, and aging is the largest risk factor for vascular diseases. Both male and female adults have increased risk for CVD as they age. For postmenopausal women, this risk is particularly elevated due to the loss of the protective effect of estrogen. It is evident that nutrition plays a crucial role in prevention of chronic diseases such as heart disease, stroke and cancer. Scientific evidence shows that high intake of plant-based food lowers the risk of CVD and many other chronic diseases.

Polyphenolic compounds in fruits and nuts have been the focus of extensive research regarding their potential to reduce risk for a number of chronic diseases. However, fruits and nuts vary largely in the type and amounts of phytonutrients they provide. Mango (Mangifera Idica L.), a commonly cultivated fruit worldwide, is rich in polyphenolic compounds such as gallic acid, mangiferin, quercetin glycosides, ferulic acid, and hydroxybenzoic acid. Many of those bioactive compounds have been found to have anti-diabetic and anti-inflammatory effects in cell models. For instance, mangiferin has been proved to effectively reducing glucose-induced endoplasmic reticulum stress by inhibiting IREα phosphorylation and ROS production in endothelial cells. However, it is unknown if the phytonutrients in mango will demonstrate a similar impact in humans. Therefore, the overall objective of this study is to investigate the effects of acute mango intake on blood pressure and blood glucose.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Postmenopausal female: 50-70 years
  • Women: lack of menses for at least one year and FSH 23-116.3 mlU/mL
  • Subject is willing and able to comply with the study protocols.
  • Subject is willing participate in all study procedures
  • BMI 25.0 - 40 kg/m2
  • Weight ≥ 110 pounds

Exclusion criteria

  • BMI ≥ 40 kg/m2
  • Dislike or allergy for mango
  • Self-reported use of daily anticoagulation agents including aspirin, NSAIDs
  • Vegan, Vegetarians, food faddists or those consuming a non-traditional diet
  • Alcohol consumption > 3 drinks/week (i.e. 1 bottle of beer, 1 glass of wine, and 1 shot of hard liquor)
  • Fruit consumption ≥ 2 cups/day
  • Vegetable consumption ≥ 3 cups/day for females
  • Fatty Fish ≥ 3 times/week
  • Coffee/tea ≥ 3 cups/day
  • Dark chocolate ≥ 3 oz/day
  • Self-reported restriction of physical activity due to a chronic health condition
  • Self-reported chronic/routine high intensity exercise
  • Self-reported diabetes
  • Blood pressure ≥ 140/90 mm Hg
  • Self-reported renal or liver disease
  • Self-reported heart disease, which includes cardiovascular events and Stroke
  • Abnormal Liver, CBC or Chemistry panels (laboratory values outside the reference range) if determined to be clinically significant by the study physician.
  • Self-reported cancer within past 5 years
  • Self-reported malabsorption

Treatment and study plan

further fasting

Other

2 hours of fasting

white bread consumption

Other

113 grams of white bread consumption

mango consumption

Other

330 grams of mango consumption

Primary outcomes

  1. Change in blood pressure

    Time frame: Baseline, 2 hours

    Changes in measures of blood pressure (mmHg) from baseline to two hours following fasting or consumption of white bread or mango.

Secondary outcomes

  1. Change in blood glucose

    Time frame: Baseline, 2 hours

    Changes in blood glucose from baseline to two hours following fasting or consumption of white bread or mango.

  2. Change in insulin levels

    Time frame: Baseline, 2 hours

    Changes in insulin from baseline to two hours following fasting or consumption of white bread or mango.

Sponsors and collaborators

Lead sponsor

University of California, Davis

Other

Collaborators

  • National Mango Board
  • USDA Beltsville Human Nutrition Research Center

Registry information

Important dates

Study start
2019
Primary completion
2020
Study completion
2020
First posted
Aug 15, 2019
Registry last updated
Jul 23, 2021

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Published trials that share one or more normalized conditions with this study.