Energy balance

Standard questionnaires (7dPAR, BWHS) and prediction equations (DRI, BOD POD) are valid for estimating Total Energy Expenditure (TEE) at a group level but lack sufficient accuracy for individual assessment due to wide limits of agreement and low correlation with the gold standard (DLW).

Use questionnaires and standard equations to estimate your energy needs for general planning or group studies, but do not rely on them for precise individual calorie targets. The error margin is too large (potentially ±1000+ kcal) for effective individual weight management. For individual precision, more rigorous testing or metabolic assessment is required.