Mark is a college student who has been lifting weights at the student recreation
ID: 3121602 • Letter: M
Question
Mark is a college student who has been lifting weights at the student recreation center. Mark’s weight has been stable at 154 lbs. An analysis of the total energy and protein content of his current diet is 3,000 kcal, including 125 g of protein. Mark’s trainer recommends a protein drink to help him build muscle mass. Mark's trainer tells him to purchase Dynamic Muscle Builder protein powder mix and take it 2x a day. The mix has 100kcal and 10 g protein per serving. If Mark follows his trainer's advice and add the protein powder mix to his daily intake, how much total protein would Mark now consume in a day?
With the added two servings of protein mix, how does Mark’s intake compare to the AMDR?
With the added two servings of protein mix, how does Mark’s intake compare to his protein RDA?
Based on the answers to the preceding questions, what advice would you give Mark?
Explanation / Answer
Initial Protein Intake = 125 gm
following trainer 's advice = 2 times 10 gm protein
Total = 125+ 20 = 145gm protein
What's AMDR and RDA? not mentioned clearly in question
total energy intake = 3000+2(100) = 3200kcal
Considering:
AMDR - ( Acceptable Macronutrient Distribution Range ) and RDAs - Recommended Daily Allowances
For RDA calculation:
Adults should get 0.8 g of protein per kilogram of body weight, while endurance runners and strength training athletes need up to 1.4 or 1.8 grams of protein per kilogram, respectively.
154lbs = 69.8 kg
total protein demand to build muscle mass =69.8*1.4 =98gm proteins (approx) is needed for given weight
for AMDR calculations:
Protein: 10 - 35% approx needed for body
3000Kcal means 10% calories in protein = 300kcal of protein = 300/4 gm of protein = 75 gm of protein is needed for given weight
C) need to reduce total protein intake
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