Risk Assessment Tools, References, and Readings

Nutrition Assessment Guidelines: When Adjustments Are Required

January 5, 2017   /

Ideal body weight (IBW)
Men: IBW=106 pounds (lb) for first 5 feet + 6 lb for each inch over 5 feet
Women: IBW=100 lb for first 5 feet + 5 lb for each inch over 5 feet
For the individual shorter than 5 feet, subtract 2 lb for each inch under 5 feet

IBW frame size adjustment
Add or subtract 10% IBW
Large frame: IBW + (IBW ´ 0.10)
Small frame: IBW - (IBW ´ 0.10)

Adjustment for patients with disabilities
Paraplegia: Subtract 5%-10% from IBW
Quadriplegia: Subtract 10%-15% from IBW

Adjustment for patients with amputations
Use the percentage of total body weight contributed by individual body parts:

Trunk without extremities


Entire leg (and foot)


Below the knee




Entire arm (and hand)






Energy Needs when BMI is >30
The Mifflin-St. Jeor formula is the most accurate way to estimate resting metabolic rate (RMR) in obese individuals and is preferred over the Harris-Benedict formula, which utilizes traditional formulas that use adjusted body weight.

Mifflin St. Jeor (using weight in kilograms and height in centimeters):

Men: RMR = (9.99 ´ weight) + (6.25 ´ height) - (4.92 ´ age) + 5
Women: RMR = (9.99 ´ weight) + (6.25 ´ height) - (4.92 ´ age) - 161


American Dietetic Association Evidence Analysis Library. Adult weight management topics and questions. Available at: http://www.adaevidencelibrary.com/topic.cfm?cat=3047. Accessed March 14, 2010.

Mahan LK, Escott-Stump S. Krause’s Food and Nutrition Therapy. 12th ed. St Louis, MO: Saunders/Elsevier; 2009.

Piland C, Adams K, eds. Pocket Resource for Nutrition Assessment (2009). 7th ed. Chicago, IL: Dietetics in Health Care Communities, Dietetic Practice Group of the American Dietetic Association; 2009.