Energy balance
Predictive equations for Resting Energy Expenditure (Mifflin, Harris-Benedict, Derumeaux, WHO) significantly overestimate individual REE in adolescents with severe obesity, rendering them clinically unreliable for prescribing specific caloric deficits.
Do not rely on standard online calculators or clinic formulas to determine your daily calorie limit if you are an adolescent with severe obesity. These tools often overestimate your energy needs by a significant margin (sometimes nearly double), leading to failed weight loss or unhealthy restriction. Focus on sustainable lifestyle habits and professional guidance rather than precise calorie counting based on these flawed estimates.
Despite a correlation between mREE using indirect calorimetry and eREE using the Deru, MS, HB, and WHO equations, there is significant over-estimation of REE at the individual level, challenging their clinical utility.
Why this rating
Cross-sectional study with N=64 and longitudinal subset N=12; robust statistical analysis (Bland-Altman) but limited generalizability due to small surgical cohort.
Source
Comparison of Measured and Estimated Resting Energy Expenditure in Adolescents and Young Adults With Severe Obesity Before and 1 Year After Sleeve Gastrectomy
Frances Rickard et al. · Frontiers in Pediatrics · 2019
DOI 10.3389/fped.2019.00037
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