The journey of a baby’s growth is full of milestones and wonder. Factors such as genes, eating habits, and the choice between nursing or formula feeding all play pivotal roles in determining how much a baby should gain in weight every month. Let’s delve into the usual growth patterns and understand this remarkable process better.
Babies are as different in size and shape as adults are. How much weight your baby gets each month can depend on their genes, how often they eat, and whether they are getting breast milk or formula.
For instance, the Centers for Disease Control and Prevention (CDC) say that babies who are only nursed tend to gain weight faster in their first two months than babies who are fed formula. But for the rest of the first year, these same babies tend to grow less quickly than their formula-fed peers.
Even though “normal” has a wide range, you can use some rough rules to see if your baby’s growth is on track. Read on to find out how most babies gain weight from birth to age two.
Newborn Weight Gain
In a month, how much should a newborn weigh? The average newborn gets between 2/3 and 1 ounce a day and grows between 1 and 1 1/2 inches in a month. Remember that all kids lose a little bit of weight in their first few days. But by the time they are 2 to 3 weeks old, they generally regain this weight.
A 2016 study in Pediatrics found that by nine to ten days, half of all babies were at or above their birth weight. By two weeks, 14–24% had not yet reached their birth weight; by three weeks, only 5–8% were still below their birth weight.
1 to 6 Months Weight Gain
Babies typically acquire 1 1/2 to 2 pounds and grow 1 1/2 to 2 inches each month throughout their first four months of life. During this time, your baby might start to look a little rounder. But as they get more active, those baby rolls will soon be replaced by muscle growth.
In the first year, a healthy child’s weight increase typically doubles in the first four to five months and triples in the first year.
1 to 2 Years Weight Gain
The National Library of Medicine says that the second year’s growth is not as fast. From age 1 to age 5, your child should gain about 5 pounds each year.
By 12 months of age, most infants have gained three times as much weight as they did at birth. Also, by the age of one year, most babies have grown about 10 inches from the length they were when they were born.
By 12 months of age, most infants have gained three times as much weight as they did at birth.
Tracking Growth Over Time
At each well-baby checkup, your child’s weight, height, and head size will be recorded on a growth chart made by the World Health Organization (WHO). This standard chart was made using data from national polls, and doctors use it to compare how your baby is doing to other babies of the same age and gender.
Concerns over whether or not their child’s weight falls toward the extremes are a common source of stress for new parents. Even though these worries are reasonable, keep in mind that what’s most important is that your child keeps growing. If your child’s doctor isn’t worried about their size or how they’re growing, you probably don’t need to be either.