Korth AL, Bhutani S, Neuhouser ML, et al. - Researchers performed a comparison between 5 energy-correction methods for self-reported dietary protein against urinary nitrogen–derived protein consumption. A total of 544 individuals (50- to 80-y-old women) participating in the WHI Nutritional Biomarkers Study (NBS) were examined. The correction methods assessed were as follows: DLW (doubly labeled water)-TEE (total energy expenditure); the Institute of Medicine's (IOM's) estimated energy requirement (EER) TEE prediction equation based on gender, height, weight, and age; published NBS total energy TEE prediction (WHI-NBS-TEE) using age, BMI, race, and income; reported protein vs reported energy linear regression–based residual method; and a Goldberg cutoff to exclude individuals stating energy intakes < 1.35 times their basal metabolic rate. According to the findings, modestly better performance of measures of energy requirement from DLW-TEE or IOM-EER vs other methods was evident for the proportional correction of reported protein intake. These energy adjustments, however, afforded corrected protein exceeding the biomarker protein, suggesting that all self-reported protein reporting bias was not eliminated by energy adjustment alone.