Larry is a 39-year-old male who is overweight. he is working with a registered dietitian nutritionist and she has recommended an 1,800-kcal diet for gradual weight loss. larry wants to ensure he is obtaining enough carbohydrate to meet his energy needs. if larry follows an 1,800-kcal diet and wants to achieve the recommended 45% to 65% of his total calories from carbohydrate, how many grams of carbohydrate per day should he be eating?

The right answer is 202.5 - 292.5 grams of carbohydrates a day.

The man's caloric requirements are around 2500 calories / day. So the subject tries to create a calorie deficit.

1 gram of carbohydrate equals 4 calories.

45% - 65% of the calorie intake (1800kcal) corresponds to 0.810 - 1.170 Kcal. (810 and 1170 calories).

So:

4 calories ==> 1 gram of carbohydrates

810 calories ==> 810/4 = 202.5 grams of carbohydrates

1170 calories ==> 1170/4 = 292.5 grams of carbohydrates.

So, the subject must consume between 202.5 and 292.5 grams of carbohydrates a day.