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Clinical Reference Systems: Pediatric Advisor 10.0

Overweight: Is My Child Too Fat?

Fatness may be normal for your child. Your child may have inherited a somewhat fat, or just stocky, body type. Or your child may be getting ready for a growth spurt by plumping up. Also, you may not realize that babies and toddlers naturally have pot bellies and chubby little bottoms.

It is important not to overreact to fatness by trying to change the way your child is growing. Children naturally slim down as they get older. If you try to get a child to eat less or exercise more, you could disrupt the normal slimming and make matters worse.

Is your child abnormally fat?

Your child may be fat, but is that fatness abnormal and unnecessary for your child? The only way to tell if your child is too fat is by checking her growth chart. Your child's fatness is likely to be normal if she is consistently following a particular growth curve. Some professionals say children are too fat if the growth curve of their weight for height is at or above the 90th to 95th percentile. That guideline doesn't make sense if your child's growth has always been at that level. Some children are just heavier than others. They have bigger bones or heavier muscles and more fat.

Your child may be growing normally even if her weight climbs to a higher growth curve as long as the change is gradual. For example, if she shifts from the 50th to the 75th percentile over a period of a half or whole year, or even 2 years, she is probably growing in a way that is right for her.

See Normal Growth

What is abnormal weight gain?

Sometimes children rapidly gain weight. You might see their weight climb from the 25th to the 75th or even the 90th percentile in one 6-month period. Their weight might, over the next 6 months, level off, or it may continue to climb.

Rapid shifts in growth mean that something is disrupting your child's normal growth pattern. Since it takes a lot to change the way a child normally grows, you should find out what the problem is.

See Why Is My Child Gaining Too Much Weight?

Call your child's physician during office hours if:

  • You have questions about whether your child's fatness is normal.
  • Your child seems to be gaining a lot of weight.

Written by Ellyn Satter, R.D., M.S.S.W., author of "How to Get Your Kid to Eat... But Not Too Much," Bull Publishing, Palo Alto, CA.
Copyright 1999 Clinical Reference Systems