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Quick Bites Dietary Computations

The document provides information on: 1) Conversion tables for units of measurement like meters, inches, pounds, and kilograms. 2) Formulas for calculating BMI, BMR, waist-hip ratio, and desirable body weight for infants, children, and adults. 3) Guidelines for total energy allowance and recommended distribution of calories from carbohydrates, proteins, and fats depending on age, gender, activity level, and pregnancy/lactation status.

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100% found this document useful (1 vote)
2K views22 pages

Quick Bites Dietary Computations

The document provides information on: 1) Conversion tables for units of measurement like meters, inches, pounds, and kilograms. 2) Formulas for calculating BMI, BMR, waist-hip ratio, and desirable body weight for infants, children, and adults. 3) Guidelines for total energy allowance and recommended distribution of calories from carbohydrates, proteins, and fats depending on age, gender, activity level, and pregnancy/lactation status.

Uploaded by

Cheska Ysabelle
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as PDF, TXT or read online on Scribd
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CONVERSION TABLE

1 m= 100cm
1 inch = 2.54cm
1 ft = 12 inches
1 kg = 1000 gms
1 kg = 2.2 lbs
*Calories are rounded off the nearest 50
*Carbohydrates, Protein & Fats are rounded off to the nearest 5
BODY MASS INDEX (BMI)
BMI = weight (kg) = 47 kg = 47 kg. = 20.25 = 20kg/m₂
(ht. meters)₂ (1.524)(1.524) 2.32
BASAL METABOLIC RATE (BMR)
BMR = Wt. in lbs. X 10.9 (male)
9.8 (female)
WAIST HIP RATIO (WHR)
WHR = waist/hips
Health risk Women Men
Low 0.80 or lower 0.95 or lower
Moderate 0.81 - 0.85 0.96 - 1.0
High 0.86 or higher 1.0 or higher
DESIRABLE BODY WEIGHT (DBW)
Infants:
1-6 months
DBW (gm) = birth weight (gm) + (Age in mo. X 600)
7-12 months
DBW (gm) = birth weight (gm) + (Age in mo. X 500)

Note: If the birth weight is unknown,


allow 3000 gm (full term) or 2500 gm (premature).
One kilo is 2.2 pounds.
DESIRABLE BODY WEIGHT (DBW)
Infants:
1-6 months
DBW (gm) = birth weight (gm) + (Age in mo. X 600)
7-12 months
DBW (gm) = birth weight (gm) + (Age in mo. X 500)

Note: If the birth weight is unknown,


allow 3000 gm (full term) or 2500 gm (premature).
One kilo is 2.2 pounds.
DESIRABLE BODY WEIGHT (DBW)
Infants:
7-12 months:
DBW (gms) = Birth weight (gms) + (age in mos. X 500)

Children:
DBW (kg.) = (No. of years x 2) + 8
*** + 2 kgs for every year
DESIRABLE BODY WEIGHT (DBW)
Adults
a. NDAP
•For men 5 feet (1.52m) tall, DBW= 112 lbs (51 kg)
•For women 5 feet (1.52m) tall, DBW = 106 lbs (48 kg)
•For both sexes, add 4 lbs (1.8 kg) for every inch above 5 feet.

b. Derived formula based on body mass index


DBW (k) = H (m) 2 X Desirable BMI
Men: DBW (k) = height in meters² x 22.0
Women: DBW (k) = height in meters² x 20.8
DESIRABLE BODY WEIGHT (DBW)
Adults
c. Tannhauser’s Method (Broca index)
Step 1. DBW (k)= Height (cm)-100
Step 2. Deduct 10%= (To apply this method for Filipinos whose
statures are usually small, unless body frame is identified).
DESIRABLE BODY WEIGHT (DBW)
Adults
d. Using the Hamwi formula (adults only)
Females:
100 lb for first 5 ft
Add 5 lb for each additional inch
Males:
106 lb for first 5 ft
Add 6 lb for each additional inch
BODY FRAME
Wrap the fingers of one hand around the opposite wrist.

Frame Size
If the thumb and middle finger overlap by 1 cm Small
If the thumb and middle finger touch Medium
If the thumb and middle finger cannot touch by 1 cm Large
e. “Adopted” Method
For 5 ft. use 105 lbs. for every inch above 5 feet, add 5 lbs.

Estimating DBW of Amputees


1. Compute DBW (in pounds or in kilos) by age and sex using any method.
2. Adjust DBW according to type of amputation

Amputation DBW= DBW- (DBW x % total body weight amputated)


Body Part % of Total Body Weight
Hand 0.3
Forearm and Hand 2.6
Entire arm 6.2
Foot 1.7
Below- knee Amputation (BKA) 7.0
Above-knee Amputation (AKA) 11.0
Entire Leg 18.6
Build Adjustment DBW Range
Small DBW Less 10% of computed ± 10% of adjusted DBW
Medium As computed ± 10% of adjusted DBW
Large DBW Add 10% of computed ± 10% of adjusted DBW
TOTAL ENERGY ALLOWANCE (TEA)/DAY
Infants
1-6 months
TEA (kcals/day)= 120 kcal/kg DBW/day

7-12 months
TEA (kcal/day)= 110 kcal/kg DBW/day
TOTAL ENERGY ALLOWANCE (TEA)/DAY
Children
a. Narins and Weill
TEA = 1000 + (100 x Age in years)
b. According to Age and DBW
TEA/day= DBW (kg) x calorie allowance based on age
Age (Years) 1989 RDA kcal/k 1989 RDA CBMRG(cooper, burber, ect.)
DBW/ day Cals/KDBW
1-3 105 102 100
4-6 90 89.6 90
7-9 75 73.2 80
10-12 65 (boys) 65.3 70
55 (girls) 54.6 60=13-15 yrs.
50= 15 yrs. and above
TOTAL ENERGY ALLOWANCE (TEA)/DAY
Adolescents
a. TEA/day= DBW (k) x calorie allowance based on age

Age (Years) 1989 RDA kcal/k DBW/ day


13-15 55 (boys)
45 (girls)
>15-19 45 (boys)
40 (girls)
Average (all ages, both sexes) 45
TOTAL ENERGY ALLOWANCE (TEA)/DAY
Adolescents
b. Estimation of TEA by Cooper, et al
TEA= BMR (or BEE) + Physical Activity by Cooper, et al

Step 1: BMR= 1 kcal/k DBW/ hour


Step 2: Add Physical Activity (PA)= % above basal
Step 3: Add SDA= 10% of BMR
TOTAL ENERGY ALLOWANCE (TEA)/DAY
Adults
a. Estimation of TEA based on the level of physical activity.
TEA= DBW (kg) x Physical activity
Activity KRAUSE NDAP
kcal/ k DBW/day kcal/k DBW/ day
Bed rest but mobile 27.5 Female Male
Sedentary 30.0 30 35
Light 35.0 35 40
Moderate 40.0 40 45
Very Active 45.0 45 50
LEVEL OF PHYSICAL ACTIVITY
Sedentary- secretary, clerk, typist (using electric typewriter)
administrator, cashier, bank teller
Light- teacher, nurse, student; lab. Technician, housewife with maids
Moderate- housewife without maid, vendor, mechanic jeepney and car
driver
Heavy- farmer, laborer, cargador, coal miner, fisherman, heavy
equipment operator Physical Activity %
Bed rest 10
Sedentary 30
Light 50
Moderate 75
Heavy 100
TOTAL ENERGY ALLOWANCE (TEA)/DAY
Pregnant women
TEr/day = normal requirement + 300 cals

Lactating women
TER/day = normal requirement + 500 cals
1989 Phil. RDA Energy (kcal/day)
Pregnancy
First trimester No additional
Second trimester NR for age + 300
Third trimester NR for age + 300
Lactation
First 6 months NR for age + 500
Next 6 months NR for age + 500
DISTRIBUTION OF TOTAL ENERGY REQUIREMENT (TER)
INTO CARBOHYDRATE, PROTEIN AND FAT
a. Caloric Distribution:
CHO- 60% CHON- 10% Fat- 30%
Note: Determine Cg, Pg and Fg
DISTRIBUTION OF TOTAL ENERGY REQUIREMENT (TER)
INTO CARBOHYDRATE, PROTEIN AND FAT
b. Non-protein Calorie (NPC) Method
Step 1. Determine protein allowance/day based on RDA for age
Step 2. Calculate the protein calories.
Step 3. Calculate the non-protein calories (NPC)
Step 4. Distribute NPC into Carbohydrate and Fat
Carbohydrate: 55 to 80% (Ave. 70%)
20 to 45% (Ave. 30%)
Step 5. Compute the amount of CHO and fat in grams.
Normal protein allowances/day:
Gm/KBDW
Infants 1.6
Children 1.5
Adolescents 1.2
Adults 1.1

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