How many grams of carbohydrates does a person need daily if they require 2000 calories and aim for 50% carbohydrates?

To determine how many grams of carbohydrates a person needs daily when their caloric requirement is 2000 calories and they aim for 50% of their calories from carbohydrates, you can use the following calculation:

1. Calculate the number of calories that should come from carbohydrates. If 50% of total daily calories should be from carbohydrates, that would be:

[

2000 \text{ calories} \times 0.50 = 1000 \text{ calories from carbohydrates}

]

2. Since each gram of carbohydrates provides approximately 4 calories, you can find the total grams of carbohydrates needed by dividing the calories from carbohydrates by the calories per gram:

[

\frac{1000 \text{ calories from carbohydrates}}{4 \text{ calories per gram}} = 250 \text{ grams of carbohydrates}

]

Thus, if a person is aiming for 50% of a 2000 calorie diet to come from carbohydrates, they should consume 250 grams of carbohydrates daily. This aligns with the option chosen and correctly reflects the dietary guidelines for macronutrient distribution.