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A client who is expending 2000 calories per week via a new exercise plan needs to consume ___________ fewer calories each week in order to hit her goal of losing 1 pound (0.45k) per week.

  1. 1000

  2. 1500

  3. 2000

  4. 2500

The correct answer is: 1500

To lose 1 pound, which is approximately 0.45 kilograms, a person needs to create a calorie deficit of about 3,500 calories. This figure is derived from research suggesting that 1 pound of body weight is roughly equivalent to 3,500 calories. In this scenario, the client is expending 2,000 calories through her new exercise plan. To reach her goal of losing 1 pound in a week, she needs to find out how many more calories must be cut from her diet to create a total deficit of 3,500 calories when combined with her exercise. By deducting the calories expended through exercise from the total calories needed for the weight loss goal, we see that if she's already burning 2,000 calories through exercise, she would need to consume 1,500 fewer calories from her diet over the week. Thus, it is correct to say that she should eat 1,500 calories fewer. This aligns perfectly with the math: - Total deficit needed for 1 pound loss = 3,500 calories - Calories burnt through exercise = 2,000 calories - Remaining deficit needed from diet = 3,500 - 2,000 = 1,500 calories