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It is customary to state the energy needs of an individual, a family or some larger group in terms either of net or gross calories. If the original estimate has been made from a study of the actual or net intake, what extra percentage would have to be added to this net basal figure to permit the need to be stated in gross calories? A similar problem arises in the conversion of gross to net requirements.
Cathcart et al. (Sun,) studied this question.