In one cup. add wine. how much sugar is in one glass of red wine?

Suger is also added into wine. I want to know how much surgar there is in red wine and white wine, in one glass. How many oz. of sugar are there in one galss. Glass let say 1 cup. = 8 fl oz. How much can we consume before the triglycerides levels are high ? lets say 5′ 6″ tall, 175 lbs in weight. But my question still is how much sugar in a 8 oz. glass of wine !!!?