Effect of Fruit and Vegetable Concentrates on Endothelial Function in Persons With Metabolic Syndrome

Inclusion Criteria: * metabolic syndrome defined by AHA/NHLBI criteria * nonsmoker * not taking any other vitamins or dietary supplements * able to have blood pressure measured bilaterally at the brachial artery Exclusion Criteria: * any unstable medical condition that would limit the ability to participate fully in the trial * rheumatologic disease requiring regular use of NSAIDs * preexisting cardiovascular disease * diagnosed eating disorder * inability to complete endothelial function assessment. * use of insulin, glucose sensitizing medication, vasoactive medications (including glucocorticoids, antineoplastic agents, psychoactive agents, or bronchodilators), nutriceuticals, fiber supplements, and tobacco.