VINIA: grape powder for blood flow — and energy?
The artery result has one small trial behind it. The energy claim has none.
VINIA is a powder of red grape cells grown in culture, sold for blood flow, energy and alertness “without stimulants”.
Short answer: one double-blind, placebo-controlled trial of 50 people with raised blood pressure found better artery dilation and, at the lower dose, lower diastolic blood pressure after 12 weeks. That is a real, if small and unrepeated, result. The leap to more energy and alertness is the ad’s own — nobody measured it.
How the evidence flows
Each claim (middle), the studies that tested it (left) — green found it, red found nothing — and the grade they add up to (right). Drawn from the same records as the grades below. Tap to open full size.
VINIA (red grape cell powder) · evidence checked 2026-10-26
What the research shows
Grades are calculated from the studies listed, by fixed rules.
- Red grape cell powder (VINIA) widens arteries and improves blood flowPromising
The ad said “VINIA® is clinically proven to significantly increase arterial dilation, which improves blood flow - supporting physical energy and mental alertness without stimulants or crashes”
VINIA · Facebook ad, seen Oct 2026
One 12-week double-blind trial of 50 people with raised blood pressure. Artery dilation (FMD) improved with the powder, though the abstract does not spell out whether that is against placebo; the lower diastolic blood pressure was against placebo, at the 200 mg dose only. One small trial, not repeated.
- Better blood flow from VINIA gives you physical energy and mental alertnessNo real evidence
The trial measured arteries, blood pressure and an oxidation marker — not energy, tiredness or alertness — and in people with raised blood pressure. We found no study of VINIA for energy or alertness.
Before you buy
- The trial was in people with raised blood pressure. If yours is high, that is worth treating with a doctor, not only with a supplement.
- If you take blood-pressure medicine, ask your pharmacist before adding anything sold to change blood flow.
Related: resveratrol and other longevity supplements · BioCopper1 for tiredness
Your next step
- If you try itIf you try it for blood flow: the trial used 200–400 mg a day for 12 weeksThat is what one placebo-controlled trial in people with raised blood pressure tested. It did not test energy.
- Test firstKnow your blood pressureA home cuff or a pharmacy check tells you whether there is anything to improve — and raised blood pressure is worth a doctor’s visit.