my baby is 8 weeks now taking formula, but she is not taking more than 60 ml. her birth weight is 4 kg and her current weight is 4.8 kgs. is this a matter of concern?

A. During their first month, most newborns gain weight at a rate of about 1 ounce (30 grams) per day. They generally grow in height about 1 to 1½ inches (2.54 to 3.81 centimeters) during the first month. Many newborns go through a period of rapid growth when they are 7 to 10 days old and again at 3 and 6 weeks.