Why Isn't My 10-Month-Old Gaining Weight Despite Eating Well? - Pediatrics

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There has been no increase in weight?


Hello, I would like to ask about my son.
He weighed 8.4 kg when he was 6 months old, but now that he is 10 months old, he still weighs 8.4 kg.
He eats a lot...
He drinks 180 ml of formula and finishes a whole bowl of porridge for solids.
I took him to the clinic and the doctor told me to buy iron drops for him.
Will taking iron drops really help? Aren't iron supplements needed only for anemia?

N Ma, 20~29 year old female. Ask Date: 2017/06/22

Dr. Xiao Kaiwen reply Pediatrics


Iron supplements are generally used to address iron deficiency anemia.
The development of infants before six months of age is more closely related to the growth environment in utero; that is, newborns with higher birth weights tend to show more significant weight gain.
However, after six months, growth becomes increasingly influenced by genetic factors.
If one or both parents are of smaller stature, the child may also tend to be smaller.
Additionally, it is worth mentioning that a normal increase in height is also considered a sign of normal growth.

Reply Date: 2017/06/22

More Info


It sounds like you're understandably concerned about your 10-month-old son's weight gain, especially since he has maintained the same weight since he was 6 months old. Let's break down your concerns and provide some insights based on pediatric nutrition and growth patterns.

First, it's important to recognize that weight gain in infants can vary significantly from one child to another. The World Health Organization (WHO) growth standards indicate that weight gain is typically rapid in the first few months of life, but it tends to slow down as babies approach their first birthday. By 10 months, many babies will have doubled their birth weight, but some may gain weight more slowly, especially if they are active and beginning to crawl or move around more.

1. Dietary Intake: You mentioned that your son eats well, consuming a full bowl of porridge and drinking 180ml of formula. This is a good amount for his age, but it's essential to ensure that the foods he is eating are nutrient-dense. Foods rich in calories and nutrients, such as avocados, full-fat yogurt, and nut butters (if there are no allergy concerns), can help support healthy weight gain. If he is primarily eating low-calorie foods, this might explain the lack of weight gain.

2. Iron Supplementation: The suggestion to use an iron supplement may stem from the fact that iron is crucial for growth and development, particularly in infants. While iron supplements are typically recommended for infants diagnosed with iron deficiency anemia, they can also be beneficial for infants who may not be getting enough iron from their diet. Foods such as pureed meats, fortified cereals, and legumes are excellent sources of iron. If your son is not consuming enough iron-rich foods, a supplement could help, but it should be used under the guidance of a healthcare professional.

3. Growth Monitoring: It's essential to monitor your child's growth over time, not just in terms of weight but also height and head circumference. If your son is following his growth curve on the growth chart, this is a positive sign. If he is falling below the expected range, further evaluation may be necessary.

4. Activity Level: As babies become more mobile, they may burn more calories, which can affect weight gain. If your son is crawling or starting to pull himself up, he may be expending more energy than before, which could explain the static weight.

5. Consulting a Pediatrician: Since you have already consulted with a doctor, it might be beneficial to seek a second opinion if you continue to have concerns. A pediatrician can assess your child's overall health, dietary intake, and growth patterns more comprehensively. They may also recommend a referral to a pediatric nutritionist for tailored dietary advice.

In conclusion, while it can be concerning when a child does not gain weight as expected, it's crucial to look at the whole picture, including dietary intake, activity level, and overall health. Ensuring that your son is getting a balanced diet rich in calories and nutrients, along with regular monitoring of his growth, will be key in addressing your concerns. If you have further questions or if his weight remains stagnant, don't hesitate to reach out to your healthcare provider for additional support and guidance.

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