Define protein requirements of Preschoolers?

For Preschoolers the protein requirements of children of various age groups are computed by the factorial method as employed by FAO/WHO/UNU Expert Consultation (19.85). The factorial value is increased by 50% to obtain the physiological  requirements for growth and further 25% (mean + 2 SD) has been added to give the  safe levels of intake. The RDA of protein additionally considers a NPU value of 65 for dietary proteins. Body weights of well-to-do Indian children have been used for computing their protein intakes. Long-term nitrogen balance studies have supported the values obtained by this factorial method. The RDA for proteins, along with other nutrients is given in Table.

Adequately breast-fed infants receive nearly 30 g fat per day, of which 10% is  linoleic acid and 1% is linolenic acid. Breast milk thus suffices the needs of EFA for infants, which is about 6 en%, Human breast milk is superior to other milk for its long chain n-6 and n-3 PUFA content that are biologically more potent.