Side effects and watch-outs
- GI distress
- Headache
- Rare: allergic reaction in grape/wine sensitive individuals
- Mild anticoagulant effect — caution pre-surgery
- Generally very well tolerated
Supplement / Cardiovascular
Grape Seed Extract (OPC)
Oligomeric proanthocyanidins from grape seeds. Potent antioxidant, anti-inflammatory, vasodilatory. Used for blood pressure support and cardiovascular protection on cycle.
Educational reference only. This page does not diagnose, prescribe, or replace care from a licensed professional. Laws, availability, and clinical appropriateness vary by location.