You don’t have to forgo your traditional Thanksgiving champagne cocktail, eggnog, holiday party punch or warm mulled wine before a roaring fire just because you’re dieting. While the empty calories in alcohol can be problematic when you’re trying to lose weight, it’s actually easy to fit the occasional drink into a healthy lifestyle plan. You just need to be smart about it. Choosing Cocktails Low in Calories and Sugar When selecting your Thanksgiving cocktails, choose the options with the fewest calories and the least amount of sugar. A glass of dry white or red wine, such as Chardonnay or Shiraz, fit the bill, as does light beer. A serving of many hard apple ciders, though they’re fairly high in sugar thanks to their fruit base, are under 150 calories and can be made even lighter when turned into a spritzer with some calorie-free seltzer (a Nutrisystem Free Food). Among the hard liquors, gin, rum, tequila, Scotch, Bourbon and vodka are all only about 100 calories per 1.5 ounce ser...