SummaryAs in the adolescence there is a zenith during fetal development This is 20 24th weeks of gestation for height and 32 34th weeks of gestation for weight During the first two trimesters of pregnancy 50 grams out of 1500 gm gained consist of fat while during the last trimester 500 gm out of 1500 gm makes the fat content This points to the presence of an energy pool necessary for a critical period after birth nbsp; Intrauterine development under the control of a center is influenced by many factors interacting with each other With the control of this center fetus produces metabolic and endocrin responses as if it is an individual receiving ideal total parenteral nutrition throughout its life Interruption of this type of nutrition after birth and inadequacy of the energy pool render nutrition an important problem especially in preterm infants during the early postnatal period nbsp; It is very important for preterm infants to supply optimal nutrition in terms of morbidity and mortality Although this optimal amount is unknown it should be adequate enough both in quality and quantity to promote the postnatal development of the infant close to the fetal development In this review nutritional requirements and properties of enteral feeding of protein infants according to their gestational age is evaluated Key nbsp;words: nbsp;Prematurity Enteral Nutrition Nutrition Requirements

As in the adolescence there is a zenith during fetal development This is 20 24th weeks of gestation for height and 32 34th weeks of gestation for weight During the first two trimesters of pregnancy 50 grams out of 1500 gm gained consist of fat while during the last trimester 500 gm out of 1500 gm makes the fat content This points to the presence of an energy pool necessary for a critical period after birth nbsp; Intrauterine development under the control of a center is influenced by many factors interacting with each other With the control of this center fetus produces metabolic and endocrin responses as if it is an individual receiving ideal total parenteral nutrition throughout its life Interruption of this type of nutrition after birth and inadequacy of the energy pool render nutrition an important problem especially in preterm infants during the early postnatal period nbsp; It is very important for preterm infants to supply optimal nutrition in terms of morbidity and mortality Although this optimal amount is unknown it should be adequate enough both in quality and quantity to promote the postnatal development of the infant close to the fetal development In this review nutritional requirements and properties of enteral feeding of protein infants according to their gestational age is evaluated Key nbsp;words: nbsp;Prematurity Enteral Nutrition Nutrition Requirements