OPC (Traubenkernextrakt)
Overview
Grape seed extract contains oligomeric proanthocyanidins (OPCs) including procyanidin B2 (C30H26O12). A meta-analysis of 19 controlled trials showed grape seed extract significantly reduced diastolic blood pressure (−2.20 mmHg) and heart rate (−1.25 bpm). No significant effect on systolic blood pressure. Benefits primarily in cardiovascular risk individuals. Potent antioxidant (in vitro > vitamins C and E). Antiplatelet activity — caution with anticoagulants. Generally well tolerated. No established upper limit.
Dosage
150 mg · Any time · Can take on empty stomach
Key Interactions
2 verified interactions found
OPC stabilizes Vitamin C and enhances its antioxidant activity up to 10x. Vitamin C regenerates OPC. Synergistic antioxidant network.
Combine for antioxidant protection.
View details →OPC protects DHA from lipid peroxidation. Both support cardiovascular health.
Combine for cardiovascular protection.
View details →Scientific Sources
Frequently Asked Questions
What is OPC (Traubenkernextrakt) used for?
Grape seed extract contains oligomeric proanthocyanidins (OPCs) including procyanidin B2 (C30H26O12).
What is the recommended dosage for OPC (Traubenkernextrakt)?
150 mg. Any time. Can take on empty stomach.
Does OPC (Traubenkernextrakt) interact with other supplements?
OPC (Traubenkernextrakt) has 2 verified interactions. Top: Vitamin C (Ascorbic Acid), DHA (Omega-3).
When is the best time to take OPC (Traubenkernextrakt)?
Any time. Can take on empty stomach.
Is OPC (Traubenkernextrakt) safe to combine with other supplements?
Always check interactions before combining supplements. Use VitalStack to verify your full stack for free.
Check how OPC (Traubenkernextrakt) fits your full stack
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Check Your Stack →Not medical advice. VitalStack is not a medical device. For personalized health recommendations, consult a healthcare provider.