Energy Requirement and Carbohydrate Intake

Calculate Mr. F’s energy requirement by using an equation known as the Harris-Benedict Equation, which takes into account a person’s age, height, weight, and activity level. The first three pieces of that information are given in the case study. Choose the activity level based on the description of his lifestyle. You will use this calculated value to fill in the Mr. F’s Nutrient Table for the energy recommendation.
Total Daily Energy Expenditure (TDEE) is a combination of how many kcals a person uses to stay alive represented by (basal metabolic rate = BMR) multiplied by the physical activity factor (PA). To determine Mr. F’s TDEE, first you must calculate Mr. F’s BMR. Enter the appropriate data from the case study and show your math
For a male: BMR = 88 + (6.1 x wt (lbs)) + (12.2 x ht (in)) – (5.7 x age in yr) =

The equation for TDEE:
BMR (calculated above) x Activity factor (choose from values below) = TDEE (kcals)
PA factors are:
Sedentary (little to no exercise): 1.2
Light activity (1–3 days per week): 1.375
Moderate activity (3–5 days per week): 1.55
Heavy activity (6–7 days per week): 1.725

___________ kcals x _______(PA Factor) = _____________ kcals (TDEE)

1. Calculate Mr. F’s total Carbohydrate Intake:
a. How many grams (g) of total carbohydrate did he actually consume? _______g

b. What is his DRI range for carbohydrates? ____ – ____ g
To calculate the DRI range, use his recommended energy value!
Calories __________ x 0.45 = ________ ÷ 4 = ______g
Calories __________ x 0.65 = ________ ÷ 4 = ______g
c. Does his intake fall within the acceptable range? Yes or No
d. The minimum amount of CHO needed to avoid ketosis is
130 g. Did he at least meet this level? Yes or No

e. What percentage of his total calories came from CHO? ______%

To calculate, use this formula: (Show values!)

Actual intake of CHO (g) ? 4 kcal/g
? 100 =
Actual calories consumed

f. Did he consume within the recommended AMDR%? Yes or No

2. Calculate Mr. F’s daily caloric intake from SUGAR:
It is recommended that no more than 10% of our total calorie intake is in the form of the simple sugar sucrose. Use the information from Mr. F’s Nutrient Table.

a. How many grams of sugar did he actually consume? ____ g

b. Now do the following calculation to determine what % of his daily caloric intake came from simple sugars. (Show values!)
Actual sugar intake (g) ? 4 kcals/g
? 100 =____________ %
Actual calories consumed

c. Was his intake of simple sugars less than the recommended? Yes or No

3. Determine if Mr. F met the recommended FIBER INTAKE:
a. How many grams of dietary fiber did he actually consume? _____ g

b. What is his recommended (DRI) amount of dietary fiber? _____ g
(see DRI tables in back of textbook)
c. Did he consume >90% of your recommended goal? Yes or No

 

 

 

 

Sample Solution

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