Answer:
- Carbohydrate: 52 grams x 4 calories per gram = 208 calories
- Protein: 4 grams x 4 calories per gram = 16 calories
- Fat: 19 grams x 9 calories per gram = 171 calories
Total calories: 208 + 16 + 171 = 395 calories
Therefore, 52 grams of carbohydrate, 4 grams of protein, and 19 grams of fat contain approximately 395 calories.