About this trial
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.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
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%.
Disqualifiers
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
Trial design
Parallel
Treatments tested in this trial
MegaNatural-BP SR 150Mg Tablet
Dietary supplementGSE MegaNatural BP
Placebo Capsule
Other interventiongiven in place of GSE MegaNatural BP
Treatment groups
Trial outcomes
Primary outcomes
Difference in change of systolic blood pressure
After 6 weeks of 150mg GSE MegaNatural BP per day the base level blood pressure should change
Difference in change of diastolic blood pressure
After 6 weeks of 150mg GSE MegaNatural BP per day the base level blood pressure should change
Secondary outcomes
Change in vessel flexibility
Change in vessel flexibility as measured by flow mediated vasodilation acutely and chronically after GSE MegaNatural BP
Change in fasting and postprandial glucose
Change in fasting and postprandial glucose as measured by absolute values and calculated insulin sensitivity using homeostasis model assessment of fasting insulin senisitivity (HOMA-%S) and B-cell function (HOMA-%) and assessment of peripheral insulin sensitivity using Matsuda index.
Change in fasting and postprandial insulin
Change in fasting and postprandial insulin as measured by absolute values and calculated insulin sensitivity using homeostasis model assessment of fasting insulin senisitivity (HOMA-%S) and B-cell function (HOMA-%) and assessment of peripheral insulin sensitivity using Matsuda index.
Change in inflammatory marker C-reactive protein
additional plasma collected and saved for future analysis as study results warrant
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