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MegaNatural BP® GSE on Blood Pressure and Cardiometabolic Risk Factors

Sponsored by Clinical Nutrition Research Center, Illinois Institute of Technology

About this study

Inflammation and stressors can interfere with the function of the lining of blood vessels and insulin activity, therefore, investigators are aiming to see how the Grape seed Extract (GSE) called MegaNatural BP can help with limiting the effects of these factors. This research will study the effects of taking 150mg of MegaNatural BP GSE per day on blood pressure levels along with influences on heart health through assessing the function of the blood vessel lining and levels of inflammation.

This is a research study to determine if an extract made from grape seeds might help control blood pressure. Previous research studies have found that taking this extract as a daily supplement at 300 mg per day in a capsule or a beverage may lower blood pressure in individuals with elevated blood pressure levels. The commercial name of this supplement is called MegaNatural BP®. The principal investigators of this study were part of the original research studies on GSE (both MegaNatural BP GSE and MegaNatural Gold GSE). They are now interested to determine if a lower amount of the grape seed extract might be effective in lowering people's blood pressure when its elevated. There is also some earlier information suggesting the GSE may influence how well insulin works in people's body. This ma…

Where this study is enrolling

Who can participate

Inclusion criteria

  • ✓40-60 years of age
  • ✓BMI \< 30kg/m2
  • ✓elevated blood pressure 120-140 mmHg (systolic) / \<90 mmHg (diastolic) at screening visit
  • ✓Has fasting blood glucose concentration between 100-125 mg/dL or HbA1c 5.7-6.4%.
  • ✓Not taking any medications that would interfere with outcomes of the study, i.e. blood pressure lowering medications or anti-diabetes medications.
  • ✓Able to provide informed consent
  • ✓Able to comply and perform the procedures requested by the protocol (including dietary restrictions, consumption of study foods, records of food diary and GI tolerance questionnaire, sample collection procedures and study visit schedule)
  • ✓Able to maintain usual physical activity pattern
  • ✓Able to avoid / abstain from alcohol and vigorous physical activity for 24 hours prior to and during study visit

Exclusion criteria

  • ✕Men and women with known or suspected intolerance, allergies or hypersensitivity to study foods or interventions
  • ✕Men and women with diabetes or have documented liver, kidney, cardiac, gastrointestinal, metabolic or respiratory diseases.
  • ✕Men and women with documented physical or mental disease/condition or major surgery as revealed by history or physical examination, which might limit participation in or completion of the study or, that, in the opinion of the investigator, could interfere with the interpretation of the study results.
  • ✕Women who are known to be pregnant or who are intending to become pregnant over the course of the study
  • ✕Women who are lactating
  • ✕Taking medication or dietary supplements that may interfere with the outcomes of the study; This may include anti-inflammatory medication (ibuprofen, Aleve/naproxen, aspirin, etc.)
  • ✕Major trauma or a surgical event within 2 months (or longer depending on trauma or event) and after consultation with PI.
  • ✕Has used antibiotics within the previous 2 months
  • ✕Had colonoscopy within 3 months
  • ✕History of an eating disorder (e.g., anorexia nervosa, bulimia nervosa, or binge eating) diagnosed by a health professional
  • ✕Substance (alcohol or drug) abuse within the last 2 years
  • ✕Excessive coffee and tea consumers (\> 4 cups/d)
  • ✕Donated blood within last 3 months
  • ✕Men and women who do excessive exercise regularly or are an athlete
  • ✕Unstable weight: gained or lost weight +/- 5 kg (11 lbs) in previous 2 months
  • ✕Women who are taking unstable dose and brand of hormonal contraceptives and/or stable dose and brand less than 6 months
  • ✕Unusual working hours i.e., working overnight (e.g. 3rd shift)
  • ✕Follows a vegan diet or any extreme dietary patterns

Only the research team can confirm whether you qualify. The intake questionnaire is the best way to find out.

Completing a questionnaire on Clinably does not enroll you in a clinical trial or confirm your eligibility. Only the research team can determine whether you qualify to participate. These results are based on the information you provide and are intended to help you start a conversation with the research team.

Trial data sourced from ClinicalTrials.gov.