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Alicia is a sedentary, 20-year-old woman who weighs 145 pounds. Based on her body weight, what is her Recommended Dietary Allowance (RDA) for protein?

a) 46 grams
b) 53 grams
c) 66 grams
d) 116 grams

Answer :

Final answer:

A 20-year-old sedentary woman weighing 145 pounds has a Recommended Dietary Allowance (RDA) for protein of approximately 53 grams per day, calculated using the standard RDA of 0.8 grams per kilogram of body weight. Therefore, the correct answer is option b) 53 grams.

Explanation:

To calculate the Recommended Dietary Allowance (RDA) for protein for Alicia, a 20-year-old sedentary woman weighing 145 pounds, we must first convert her weight from pounds to kilograms. Using the conversion factor that 1 kilogram equals 2.2 pounds, Alicia's weight in kilograms is approximately 65.9 kg (145 / 2.2). The RDA for a sedentary adult is 0.8 grams of protein per kilogram of body weight per day. Therefore, Alicia's RDA for protein is 0.8 g/kg imes 65.9 kg, which equals about 52.72 grams of protein per day.

Based on these calculations, the closest answer to Alicia's protein needs as a 20-year-old sedentary woman weighing 145 pounds would be 53 grams, thereby making option b) 53 grams the correct choice.

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