Ajay decided to stop eating meat a year ago. Now that he is taking a nutrition c
ID: 100188 • Letter: A
Question
Ajay decided to stop eating meat a year ago. Now that he is taking a nutrition class, he wonders if his vegetarian diet is as healthy as he thought. He is 22 years old, is 5’9” tall, weighs 154 pounds, and gets little exercise. His diet analysis is shown here:
Food
Serving
Energy (kcal)
Protein (g)
Fiber (g)
Sat Fat (g)
Breakfast
Frosted flakes
2 cups
320
3
2.7
0
Low-fat milk
1 cup
103
8
0
2
Orange juice
1 cup
112
2
0.5
0
Whole-wheat toast
2 slices
144
6
2.2
0
Butter
2 tsp
68
0
0
5
Coffee
1
0
0
0
0
Coffee creamer
1 T
30
0
0
2
Lunch
Cheese pizza (reg. crust)
2 slices
542
24
4
10
Potato chips
1 oz
155
2
1.2
3
Cola
12 oz
136
0
0
0
Ice cream sandwich
1
143
3
1
3
Dinner
Vegetable Lasagna
10 oz
400
18
4.8
7
Garlic bread
2 slices
189
4
1.5
1
Green salad
1 cup
22
2
3
0
Salad dressing
2 T
118
0
0.3
2
Ice cream
¾ cup
345
6
0
8
Iced tea
8 oz
90
0
0
0
Total
2917
78
21.2
43
Does Ajay’s diet provide enough protein to meet his RDA of 0.8g/kg of body weight? (2.2lbs = 1kg)
Food
Serving
Energy (kcal)
Protein (g)
Fiber (g)
Sat Fat (g)
Breakfast
Frosted flakes
2 cups
320
3
2.7
0
Low-fat milk
1 cup
103
8
0
2
Orange juice
1 cup
112
2
0.5
0
Whole-wheat toast
2 slices
144
6
2.2
0
Butter
2 tsp
68
0
0
5
Coffee
1
0
0
0
0
Coffee creamer
1 T
30
0
0
2
Lunch
Cheese pizza (reg. crust)
2 slices
542
24
4
10
Potato chips
1 oz
155
2
1.2
3
Cola
12 oz
136
0
0
0
Ice cream sandwich
1
143
3
1
3
Dinner
Vegetable Lasagna
10 oz
400
18
4.8
7
Garlic bread
2 slices
189
4
1.5
1
Green salad
1 cup
22
2
3
0
Salad dressing
2 T
118
0
0.3
2
Ice cream
¾ cup
345
6
0
8
Iced tea
8 oz
90
0
0
0
Total
2917
78
21.2
43
Explanation / Answer
Ajay weighs 154 pounds.
1 kg is 2.2 lbs
So, 154 lbs is (154/2.2) 70 kg
RDA of protein is 0.8 g/kg of body weight
So, Ajay must take (70 x 0.8) 56 g of protein
His diet provides 78 g of protein
So, his diet contains enough protein to meet his RDA.
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