The investigators investigate the impact of an encapsulated fruit, berry and vegetable juice powder concentrate on oxidative stress, inflammation and blood flow before and post exercise in overweight, middle-aged, women.

Main hypotheses (H1):

• The nutraceutical has an impact on oxidative stress reduction.
• The nutraceutical has an impact on inflammation.
• The nutraceutical has an impact on blood flow and microcirculation.
• Walking exercise for 30 minutes has an impact on oxidative stress- and inflammation markers.
• Walking exercise for 30 minutes has an impact on blood flow and microcirculation
• The combination of nutraceutical supplementation + walking exercise for 30 minutes has an impact on oxidative stress- and inflammation markers, and on blood flow/microcirculation.

Inclusion Criteria:

• women
• BMI > 27
• praemenopausal
• non smokers
• eligibility for exercise
• 4wk wash out

Exclusion Criteria:

• male
• all people not matching this age group
• BMI > 40 and < 27
• peri- or postmenopausal women
• smokers
• all women taking dietary supplements
• all women that fail in ergometric exercise eligibility testing, refering to the standards in sports medicine (e.g.: significant ST-decrease or increase, blood pressure > 240 mmHg, tachycardia, polymorphic extrasystolia, cyanosis, bradyarrhythmia..)
• Diabetics
• osteoporosis or osteopenia