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Drinking either red wine or white wine will increase the HDL, or good, cholesterol. However, red wine contains much higher levels of antioxidants like resveratrol than white wine does. These phenolic antioxidants found in red wine will help to keep your LDL, or bad, cholesterol levels healthy and will also help to reduce the blood clotting ability of the blood. Both of these actions will help to reduce the risk of cardiovascular disease.
On the down side, drinking either red or white wine may increase homocysteine levels, which is not good, however increasing intake of vitamin B6 may counteract that effect.
Remember that while one glass of wine per day may be good for you, it is not a case of more is better. Heavy drinking of any kind of alcoholic beverages will increase your risk of several chronic diseases.