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Felicia is an Olympic swimmer who weighs 135 lbs and consumes roughly 3,000 kcals/day. What range of kcals of Felicia's daily consumption should be protein (PRO)? We are not looking for the AMDR of PRO, but the actual math and number of kcals. Remember, Felicia is an athlete. Show your work, please.

Mike is a 52-year-old office worker who has lived a primarily sedentary lifestyle but has set a New Year's resolution to improve his overall body composition. Mike currently weighs 220 lbs. How many grams per kilogram of body weight should Mike be consuming per day of protein (PRO)? The conversion from kilograms to pounds is 2.205. Please round to the nearest tenth at the end of your calculation. Show your work, please.

Answer :

Felicia should consume between 73.48 to 122.45 grams of protein per day.

To calculate Felicia's recommended protein intake in terms of kilocalories (kcals) based on her body weight and daily caloric consumption, we can follow these steps:

Step 1: Convert Felicia's weight from pounds to kilograms.

Divide 135 lbs by 2.205 to get Felicia's weight in kilograms.

135 lbs ÷ 2.205 = 61.23 kg (rounded to the nearest hundredth)

Step 2: Determine the range of protein intake based on Felicia's status as an Olympic swimmer.

The recommended range for protein intake is between 1.2 to 2.0 grams per kilogram of body weight.

Step 3: Calculate the protein intake range in grams per day.

Multiply Felicia's weight in kilograms by the lower and upper ends of the protein intake range.

61.23 kg x 1.2 g/kg = 73.48 g protein

61.23 kg x 2.0 g/kg = 122.45 g protein

Step 4: Convert protein intake to kilocalories.

Since 1 gram of protein is equivalent to 4 kilocalories (kcals), we can multiply the protein intake range by 4 to get the kilocalorie range.

73.48 g protein x 4 kcal/g = 294.92 kcal of protein

122.45 g protein x 4 kcal/g = 489.8 kcal of protein

Therefore, Felicia should aim to consume between 295 to 490 kcals of protein per day.

For Mike, a 52-year-old office worker, the steps are similar:

Step 1: Convert Mike's weight from pounds to kilograms.

Divide 220 lbs by 2.205 to get Mike's weight in kilograms.

220 lbs ÷ 2.205 = 99.77 kg (rounded to the nearest hundredth)

Step 2: Determine the range of protein intake based on Mike's lifestyle and goals.

The recommended range for protein intake is between 1.2 to 1.7 grams per kilogram of body weight.

Step 3: Calculate the protein intake range in grams per day.

Multiply Mike's weight in kilograms by the lower and upper ends of the protein intake range.

99.77 kg x 1.2 g/kg = 119.72 g protein/day

99.77 kg x 1.7 g/kg = 169.54 g protein/day

Therefore, Mike should consume between 120 to 170 grams of protein per day.

Step 4: Calculate the protein intake range in grams per kilogram of body weight.

Divide the protein intake range by Mike's weight in kilograms.

120 g protein/day ÷ 99.77 kg = 1.2 g/kg/day

170 g protein/day ÷ 99.77 kg = 1.7 g/kg/day

Therefore, Mike should aim to consume between 1.2 to 1.7 grams of protein per kilogram of body weight per day.

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