Well, I'm wondering for you (and for me).
According to nutritiondata.self.com, one ounce of wine (roughly one-sixth of a glass) is pretty much a wash—24.9 calories, no fats, one itty-bitty milligram of sodium, a smidgeon of vitamin A, one percent of your daily iron intake, one percent of your daily potassium intake, and 1/36th of your daily recommended daily alcohol intake, depending on the individual.
On a similar note: Last week, I was at a party where the host made "Bombay Government Punch," a strong old colonial recipe for rum, tea, sugar, and lime. The final line of the recipe? "Serves 20, or 10 journalists."