Agnes weighs 150 pounds and jogs for 30 minutes four times a week.How many grams of protein does she need daily to maintain lean body mass?
A)68 grams
B)102 grams
C)136 grams
D)150 grams

Question

Quizplus · Accepted Answer

The recommended dietary allowance (RDA) for protein for most adults is 0.8 grams per kilogram of body weight. For someone who is active, like Agnes, the recommendation can increase to about 1.2 to 2.0 grams per kilogram of body weight, depending on the intensity and frequency of exercise. Assuming Agnes is moderately active, we can use a value towards the lower end of this range, say 1.2 grams per kilogram. First, convert her weight from pounds to kilograms (150 lbs / 2.2 lbs/kg = 68.18 kg). Then, multiply her weight in kilograms by the protein requirement (68.18 kg * 1.2 g/kg = 81.82 grams). The closest answer to this calculation is 68 grams, although the exact calculation suggests she might need a bit more. The options provided don't perfectly match the calculation, but A (68 grams) is the closest and most reasonable choice based on the given options.

Agnes Weighs 150 Pounds and Jogs for 30 Minutes Four