Final answer:
To determine the percentage of calories from carbohydrates in a 2,000 kcal diet with 275 grams of carbohydrates consumed, multiply the grams by 4 to get total calories from carbs, then divide by total calorie intake and multiply by 100, resulting in 55%.
Step-by-step explanation:
The question is asking how to determine the percentage of calories from carbohydrates in a 2,000 kcal diet when 275 grams of carbohydrates are consumed. To answer this, one must first calculate the total number of calories provided by 275 grams of carbohydrates. Since each gram of carbohydrate provides 4 calories, the total calories from 275 grams of carbohydrate will be 275 grams × 4 calories/gram = 1100 calories. Next, to find the percentage of calories from carbohydrates, divide the calories from carbohydrates by the total calorie intake and multiply by 100. Therefore, the calculation would be (1100 calories / 2000 calories) × 100 = 55%.
This means, 275 grams of carbohydrates in a 2,000 kcal diet provides 55% of the calories from carbohydrates, which aligns with the American Heart Association's recommendation of carbohydrate consumption.