One glass is enough.

red wine contains antioxidant chemicals that have also been credited with a lowered risk of heart disease.
Red wine is rich in a class of compounds known as polyphenols, which can also be found in teas, chocolate, and fruit. These compounds are involved in the quality of the wine because they influence the color, bitterness, astringency, and chemical stability1
If a 4-ounce glass is equal to 1 serving of red wine, men should drink 2 servings per day, while women only need 1.
Cabernet Sauvignon was at the top of the list, with Petit Syrah and Pinot Noir following closely behind.

none, dont drink red wine it has arsenic in it. drink white wine (1 to 2 glasses a day is healthy). Dont believe the hype.

One glass of wine is all you need to get some benefits from wine- it is important though that it’s red wine.

here is some good info for you:

One glass a day is fine and I believe a good wine to reap the benefits would be Chardonnay.