Nutrition Awareness

Cora, Luis Lake View High School

Objective(s): After the completion of this lesson, the student should be able to: a) Determine his or her ideal body weight. b) Determine the kilocalories in fat, protein, and carbohydrate in food. c) Demonstrate familiarity with the food groups relating to kilocaloric content. d) Estimate the basic metabolic rate (BMR), energy for voluntary activities and the energy to process food. e) Identify the food sources of vitamin and minerals and their role in the body's metabolism. Materials Charts containing information about: 1. kilocaloric values. 2. vitamines and minerals; their food sources and function in the body. 3. articles on nutrition from newspapers, magazines and publications. Recommended Strategy a) To calculate the desirable body weight for an average body frame in females, start with 100 lbs. and add 5 lbs. for each additional inch of height over 5 feet. Males follow the same procedure except start with 110 pounds. Therefore, a female who is 5ft., 4in. tall should weigh within 10 percent of 120 lbs. A male 5 ft., 9 in. tall should weigh within 10 percent of 155 lbs. Individuals with small frames should be close to the lower limit of the +10 percent range, while those with large
frames can be near the upper +10 percent range of the
calculated desirable body weight.

b) For this part of the exercise the teacher can have
kilocalorie charts or have the students figure them out by
the following procedure: Determine the grams of the particular food.
Multiply the carbohydrate grams times four, the fat grams
times nine, and the protein grams times four, and add the
products. (Alcohol, not a nutrient, is grams times seven).

c) The kilocaloric chart will also be useful in this part of
the exercise.

d) The BMR is influenced by a number of factors: age, height
and sex. The BMR of females is less than that of males and
decreases with age; however, it is higher in thin, tall
people. To calculate the basic metabolic rate for males, add
a zero to the body weight and then add twice the body weight
to that number. To calculate the BMR for females attach a
zero to their body weight and then add their weight to that
To calculate their energy for voluntary activities, the
person must classify his/her life style as one of the

Sedentary (e.g., office work):add 20 percent to the BMR

Light Activity (e.g., student, laboratory work):add 30
percent to he BMR.

Moderate Activity (e.g., shop worker):add 40 percent to
the BMR.

Heavy Activity (e.g., outdoor-type occupation):add 50
percent to the BMR.

e) In order to calculate the energy to process food we need to
know the number of kilocalories eaten daily to calculate the
number of kilocalories necessary to process the ingested
food. The energy required to digest and absorb the nutrients
in food is about 6 percent of the daily kilocalories.
Students should total the kilocalories from their basic
metabolic rate, voluntary activity and food processing
requirement and record the information as follows.

Basic metabolic rate.................. kilocalories

Voluntary activity.................... kilocalories
Energy required for

food processing....................... kilocalories

Total energy required daily........... kilocalories

Total energy intake from diet......... kilocalories

Difference between total energy
required and total energy intake
from diet............................. kilocalories
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