How many carbohydrates in 8 oz of dry red wine?

According to Jorgecruise.com, there is one gram of sugar in a 3 oz glass of white wine and one gram of sugar in 3 pz glass of red wine. He doesn't discuss champagne or dessert wines.

Yes, very confusing since in his book THE BELLY FAT CURE, he rates 5 oz of Kendall Jackson chardonay as 0/0 for sugar/carbs pg 311 along with ratings for champagne and red wine choices also with 0/0.