Every baby is an individual with his or her own growth pattern. Still, steady weight gain during a baby's first few months is an important indicator of overall health.
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Initial weight loss
Babies normally lose several grams of their birth weight in their first few days -- about five to seven per cent.
Overall weight gain
A typical baby will regain his birth weight by two weeks postpartum, double his birth weight by six months and triple it by his first birthday.
Average weekly gain
During the first four months, babies gain 115 to 200 g (4 to 7 oz) per week; four to six months -- 85 to 140 g (3 to 5 oz) per week; six to 12 months -- 85 g (3 oz) per week.
Many breastfed babies gain weight less quickly than their formula-fed counterparts, especially after the first six months. The World Health Organisation has developed a growth chart for breastfed babies. Other infant growth charts are based primarily on formula-fed babies.
Babies and measurements
Weight gain is only one factor in evaluating a baby's health -- length, head circumference, alertness, demeanour and the achievement of developmental milestones are also considered.
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