Find Information About:

Drugs & Supplements

Get information and reviews on prescription drugs, over-the-counter medications, vitamins, and supplements. Search by name or medical condition.

Pill Identifier

Pill Identifier

Having trouble identifying your pills?

Enter the shape, color, or imprint of your prescription or OTC drug. Our pill identification tool will display pictures that you can compare to your pill.

Get Started

My Medicine

Save your medicine, check interactions, sign up for FDA alerts, create family profiles and more.

Get Started

WebMD Health Experts and Community

Talk to health experts and other people like you in WebMD's Communities. It's a safe forum where you can create or participate in support groups and discussions about health topics that interest you.

  • Second Opinion

    Second Opinion

    Read expert perspectives on popular health topics.

  • Community


    Connect with people like you, and get expert guidance on living a healthy life.

Got a health question? Get answers provided by leading organizations, doctors, and experts.

Get Answers

Sign up to receive WebMD's award-winning content delivered to your inbox.

Sign Up

Health & Pregnancy

Font Size

Obesity During Pregnancy and Asthma Risk in Kids

Threat of respiratory disease may be up to 30 percent higher, study suggests


"It is also important to have adequate weight management and healthy nutrition during pregnancy, because excessive weight gain [during pregnancy] also increases the risk of childhood asthma. This is of course in addition to all the other benefits of a healthy weight and diet," he said.

The report appears in the August print edition of the journal Pediatrics.

Previous studies have found that obesity leads to an increased risk of asthma. And, among children with asthma, obesity leads to increased severity of the disease. There has also been increasing interest in the early origins of childhood asthma, Forno said.

To see how a mother's weight might be linked to the development of asthma in her children, Forno and his colleagues reviewed 14 previously published studies that included over 100,000 mother-child pairs.

The risk of a child having asthma was 36 percent higher for mothers who were obese during pregnancy compared to normal-weight expectant mothers. The study authors suggest that, for women who do not have a history of asthma, the effect of obesity during pregnancy may be an even stronger influence on whether or not a child develops asthma.

Although there appeared to be a slight association between an overweight mom-to-be and asthma in her offspring, the association wasn't statistically significant, according to the study.

Dr. David Mendez, a neonatologist at Miami Children's Hospital, said that this study asks a question that only additional research can answer. Such research would need to take into account the mother's history of asthma and the baby's exposure to cigarette smoke, among other factors, he said.

"This kind of study would take years to do because you have to wait for children to grow up," said Mendez, who was not involved with the study.

"We already know maternal obesity and increased weight during pregnancy are bad for the mother and bad for the baby," he added. Being overweight can result in low-birth-weight infants, preterm delivery and cesarean delivery.

"There are short-term reasons why mothers shouldn't gain too much weight during pregnancy, and now it appears that there may also be long-term benefits to doing that as well," Mendez said.

1 | 2

Pregnancy Week-By-Week Newsletter

Delivered right to your inbox, get pictures and facts on
what to expect each week of your pregnancy.

Today on WebMD

hand circling date on calendar
Track your most fertile days.
woman looking at ultrasound
Week-by-week pregnancy guide.
Pretty pregnant woman timing contaction pains
The signs to watch out for.
pregnant woman in hospital
Are there ways to do it naturally?
slideshow fetal development
pregnancy first trimester warning signs
What Causes Bipolar
Woman trying on dress in store
pregnant woman
Close up on eyes of baby breastfeeding
healthtool pregnancy calendar
eddleman prepare your body pregnancy