Inclusion Criteria:  Healthy men and women with normal to high-normal resting BP (SBP 120 - 139 mm Hg and DBP 80 - 89 mm Hg). Age 35 - 65 years BMI 20 - 32 kg/m^2 Hypertensive response to maximal exercise test defined as SBP ≥ 200 mm Hg (men) and ≥ 180 mm Hg (women).  Exclusion Criteria:  Active engagement in the weight loss programs, also including slimming diets. Active smoking or abstinence from smoking for less than one year. Use of medications that reduce BP and/or can potentially influence other study outcomes (ACE-inhibitors, angiotensin receptor blockers, diuretics, painkillers, etc). Intake of polyphenol-containing supplements for two month before and during the whole course of the study. History of diabetes, cardiovascular, respiratory, renal, gastrointestinal, hepatic or other diseases and conditions, which potentially can compromise participation in this study. Intense sporting (>10 h/week) and/or participation in the competition at the professional level. Pregnancy or breastfeeding. Participation in a clinical trial within 4 weeks prior to inclusion into this study.