Very likely. Recent studies indicate that red or purple grape juice, like red wine, can relax blood vessels, making it easier for blood to flow, and can reduce cholesterol and blood clots, preventing vascular damage, thus helping to reduce the risk of heart disease.
These benefits of grape juice and red wine are generally believed to come from the high content of antioxidants found in grape skins and seeds, including some particularly important antioxidants like resveratrol and flavonoids.
Some studies have also found that eating red or purple grapes directly can have similar benefits, and possibly even greater benefits, because whole grapes contain not only the mentioned antioxidants but also dietary fiber, which is very beneficial for overall health.
It is worth noting that although red wine can be beneficial for preventing cardiovascular diseases, it should be consumed in moderation, as excessive drinking can be harmful to health.