Normal Infant Weight Gain

Infants gain weight at average rates of 1 to 2 pounds per month for the first six months. Normal weight gain can vary for infants based on metabolic rates, infant temperament and personality, and frequency of breast-feeding.

Significance

Parents are concerned with their infants weight gain because they want to know that their baby is receiving enough nutrition and maintaining healthy growth rates.

Time Frame

Newborns gain an average of 4 to 7 oz. ounces a week within the first month totaling around 1 to 2 pounds a month for the first six months. Check online resources such as the American Academy of Pediatrics website to see if your infant is gaining weight at a normal rate for his or her age (see Resources below).

Effects

Breast-fed babies tend to gain weight at different rates than formula-fed babies. After the first six months, breast-fed babies tend to be leaner than formula-fed babies.

Considerations

Personality can affect an infant's rate of weight gain. Calm, laid-back babies tend to gain more weight because they do not burn as many calories as more active, busier babies.

Warning

Contact your pediatrician immediately if your newborn exhibits a significant drop in his or her growth rate and weight gain. Early intervention can prevent health problems and usually resolves the issue quickly.

Resources

• American Academy of Pediatrics