Effect of a Nitric Oxide Supplementation Product on Endothelial Dysfunction and Prehypertensive Adults

Inclusion Criteria: * Subjects with seated resting systolic blood pressures between 130-160 mmHg and diastolic between 85 and 100 mm Hg (inclusive) at screening visit * Subjects with an elevated ADMA * Agreement to maintain current level of physical activity and diet throughout the study * Agrees to comply with study procedures including willingness to fast at least 12 hours before blood samples, abstain from alcohol two days prior to blood sampling and blood pressure measurement, abstain from coffee at least 14 hours before blood pressure Exclusion Criteria: * Females who are pregnant, breastfeeding or planning to become pregnant during the course of the study. * Seated office systolic blood pressure ou side of the target range (systolic BP\<130 mm Hg or \>160 mmHg) or diastolic BP\< 85 or 100 mm Hg at screening visit * The use of natural health products for th treatment of hypertension within 2 weeks of screening * Significant cardiac history defined as a h story of myocardial infarction (Ml); coronary angioplasty or bypass graft(s); Valvular isease or repair; unstable angina pectoris; transient ischemic attack (TIA); cerebrovascular accidents (CVA); congestive heart failure; or coronary artery disease (CAD) * Type I diabetes * Unstable medical conditions that in the opinion of the Principle Investigator preclude the subject from participating in the study * Alcohol or drug abuse within the last 6 months * Clinically significant abnormal laboratory results at screening * Participation in a clinical research trial wi hin 30 days prior to randomization * Allergy or sensitivity to study supplemen ingredients * Individuals who are cognitively impaired nd/or who are unable to give informed consent * Any other condition which in the lnvestig tor's opinion may adversely affect the subject's ability to complete the study or its meas res or which may pose significant risk to the subject.