Diet Measuring Up To The Numbers Worksheet (Page 2 of 3) in pdf

II. Evaluating Protein Intake—A Case Study

Mark is a college student who has been lifting weights at the student recreation center. The trainer at the center recommended a protein

drink to help Mark build muscle mass. Answer the questions below about Mark’s current food intake and determine whether a protein

drink is needed to supplement Mark’s diet.

1. The following is a tally of yesterday’s intake.

Breakfast

Frosted Mini-Wheats cereal, 2 oz

1% milk, 1

⁄

cups

Orange juice, chilled, 6 oz

Glazed yeast doughnut, 1

Brewed coffee, 1 cup

Lunch

Double hamburger with condiments, 1

French fries, 30

Cola, 12 oz

Medium apple, 1

Dinner

Frozen lasagna w/meat, 2 pieces

1% milk, 1 cup

Looseleaf lettuce, chopped, 1 cup

Creamy Italian salad dressing, 2 tsp

Medium tomato,

⁄

Whole carrot, raw, 1

Evening snack

Vanilla ice milk, 1 cup

Hot fudge chocolate topping, 2 tsp

Soft chocolate chip cookies, 2

Evaluate Mark’s diet—is he meeting the minimum recommendations of the Food Guide Pyramid?

2. Mark’s weight has been stable at 70 kilograms (154 pounds). Determine his protein needs based on the RDA (0.8 grams per

kilogram).

a. Mark’s estimated protein RDA:

b. What are the maximum recommendations for protein intake for strength-training athletes (see p. 391)?

c. Calculate the maximum protein recommendation for Mark.

3. An analysis of the total calorie and protein content of Mark’s current diet is 3470 kcal, 125 grams of protein (14% of total calories

supplied by protein). This diet is representative of the food choices and amounts of food that Mark chooses on a regular basis.

a. What is the difference between Mark’s estimated protein needs as an athlete (from number 2) and the amount of protein that

his current diet provides?

b. Is his current protein intake inadequate, adequate, or excessive?

4. Mark takes his trainer’s advice and goes to the supermarket to purchase a protein drink to add to his diet. Four products are avail-

able; they contain the following label information.

Joe Weider’s

Victory

Sugar-Free

Dynamic

Super Mega

Amino Fuel

90% Plus Protein

Muscle Builder

Mass 2000

Serving size

3 tbsp

⁄

scoop

Kcal

104

110

103

104

Protein (grams)

405

Diet Measuring Up To The Numbers Worksheet Page 2

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