This study is being done to determine if the use of EGCG-Enhanced Extra Virgin Olive Oil in a daily diet will improve endothelial function.

Patients will be randomized to receive either placebo ROO (refined olive oil) or study solution EGCG-EVOO (EGCG enhanced extra-virgin olive oil) over the four month study period.

Inclusion Criteria:

• Patients will be included in the study if they have an abnormal endothelial function study. This is defined at our institution as an RH-PAT index of less than 2. Patients will undergo two RH-PAT analyses and included abnormal values are obtained on either one or both tests. Only patients who provide written informed consent will be included.

Exclusion Criteria:

• Patients with normal baseline endothelial function studies defined as RH-PAT index >2 will be excluded. Patients with uncontrolled hypertension >180/100 while on medication on initial evaluation will also be excluded.

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