This study evaluates effects of different doses of chlorogenic acids on vascular health.

It has been suggested that consumption of food rich in chlorogenic acids can help to improve vascular health, measured by flow mediated dilation.

Inclusion Criteria:

1. Male or postmenopausal female healthy volunteers aged 45-65 years old
2. Willing and able to sign written informed consent prior to trial entry
3. Healthy as determined by the medical history and physical examination

Exclusion Criteria:

1. Premenopausal women
2. Current smokers
3. Abnormal blood pressure, defined as follow: systolic <90 or >140 mmHg and diastolic <60 or >90 mmHg
4. Regular consumption of cholesterol-lowering medication
5. Regular consumption of antihypertensive medication
6. Regular consumption of any vasoactive medication that cannot be discontinued for at least 4 half-lives before the FMD assessment
7. Any food allergies
8. Any intakes of multivitamin-tablets and other supplemental compounds within 10 days of the study start and throughout the study
9. Inability to refrain from coffee/tea and alcohol consumption for 12 h prior to study visits
10. Acute or chronic major psychiatric illness or other major illness that in the opinion of the investigator would make the subjects' participation in the study unsafe or prevent them from fully complying with the study procedures
11. Use of medication to treat psychiatric illness (depression) within 3 months prior to the study
12. Recent significant weight loss or gain (>6% of body weight) in the past 3 months
13. Body mass index (BMI) outside 18-32 kg/m2 range
14. Alcohol intake > 280g/week (21-28 glasses per week)