Criteria foR selection of Protein Levels foR Estimating Intake

The criteria for selecting the most appropriate concentration data to use in a dietary intake estimate depend on the purpose of the modeling exercise. For a probabilistic approach, all available concentration data can be used. For a deterministic or point estimate approach, a statistic such as the mean or median may be used. For most food component analyses, the intakes are log-normally distributed. In those cases, a median or geometric mean would be the most appropriate measure of the concentration. Unfortunately, there is often too little data to reliably determine the characteristics of the distribution; in those situations, the mean is generally used.

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