dextrose nutrition facts?

ive been looking for the calories and carbs per serving, anyone know?

Serving Size: 4 Grams (1.25 tsp)

Amount Per Serving:

Calories 15
Calories from fat 0
Total fat 0 g 0%
Total Carbohydrate 4 g 1%
Sugars 4 g
Sodium 0 mg 0%
Protein 0 g

Carbohydrates have 4 calories per gram. So 1 gram of dextrose has 4 calories.

So you need 12.5 tsp to get 40grams for one pwo serving.. And you need another 40grams of moxidexrin(sp)