Use caution when evaluating the injured active duty population. Many are young, healthy, and very muscular. If they are muscular with a BMI > 30, you should use their estimated actual weight pre-injury. Those with a BMI > 30 due to obesity should use the IBW when indicated as stated above. Pick any of the above formulas you like as they are all 70–80% accurate compared to a metabolic cart study, which is not available until the patient reaches the U.S. and should be used as soon as possible to obtain the gold standard for caloric and macronutrient requirements.