Grape Seed Extract: study protocols
2 study groups say how much Grape Seed Extract participants took a day. These are the doses the studies gave. They are not a recommendation.
Dose per serving from products
1,856 products in our catalogue print how much Grape Seed Extract a serving holds.
Most common: 50 mg to 100 mg, 33% of 1,856 products.
| Dose per serving | Products |
|---|---|
| 2.5 mg or less | 37 |
| 2.5 mg to 5 mg | 83 |
| 5 mg to 10 mg | 86 |
| 10 mg to 25 mg | 300 |
| 25 mg to 50 mg | 377 |
| 50 mg to 100 mg | 606 |
| 100 mg to 250 mg | 238 |
| 250 mg to 500 mg | 113 |
| over 500 mg | 16 |
Fewer than 5 study groups in one unit match, too few to draw the chart.
Commonly used together
None of these 2 study groups took Grape Seed Extract with anything else.
2 study groups
| Study | |||
|---|---|---|---|
| Vitis vinifera seed extract reduces venous reflux time in patients with varicose veins: VICTORY randomized controlled trial 2026 · VVSE group · Adults aged 19–80 with symptomatic varicose veins and venous reflux | 300 mg | 12 weeks | 100 |
| The effects of grape seed extract supplementation on cardiovascular risk factors, liver enzymes and hepatic steatosis in patients with non-alcoholic fatty liver disease: a randomised, double-blind, placebo-controlled study 2024 · GSE group · Adults aged 20–60 years with moderate to severe hepatic steatosis and NAFLD; women and men | 520 mg | 8 weeks | 25 |