This is the nutritional information I found for commerically available regular egg nog (light egg nog is indicated below):
Egg Nog
Nutrition Facts
Serving Size: 1/2 Cup (118mL)
Amount Per Serving
Calories 170 Calories from Fat 80
% Daily Value*
Total Fat 9g 13%
Saturated Fat 5g 25%
Trans Fat 0g 0%
Cholesterol 60mg 21%
Sodium 65mg 3%
Total Carbohydrate 19g 6%
Dietary Fiber 0g 0%
Sugars 17g
Protein 4g
Now here is the information for light egg nog:
Nutrition Facts
Serving Size: 1/2 Cup (4 fl oz)
Amount Per Serving
Calories 130 Calories from Fat 25
% Daily Value*
Total Fat 2.5g 4%
Saturated Fat 1.5g 7%
Trans Fat 0g 0%
Cholesterol 40mg 13%
Sodium 125mg 5%
Total Carbohydrate 22g 7%
Sugars 21g
Protein 5g
The primary listed sweetner is high fructose corn syrup, which is not an effective pwo insulin spiker when compared to dextrose, maltodextrin or even sucrose.
Based on the above, I would conclude that there are better pwo drinks. If you're
drinking for taste and the holiday spirit, that's fine, but there surely are better post work out foods from an effectiveness standpoint.