Keep reading for tips on how to help prevent gestational diabetes. We also cover risk factors and early signs and symptoms.

Gestational diabetes can negatively affect both the woman and fetus. Possible effects include:

According to the Centers for Disease Control and Prevention (CDC) , gestational diabetes develops in approximately 2–10% of pregnancies in the United States each year.

Gestational diabetes is a type of diabetes that can occur during pregnancy. It is not always possible to prevent it, but a pregnant woman can take steps to reduce her risk.

Although gestational diabetes is not always avoidable, women can take some steps to help reduce their chances of developing it.

Go into pregnancy at a healthy weight

Share on Pinterest Regular exercise is important for a healthy pregnancy.

A woman looking to conceive should make lifestyle choices that can help her reach and maintain a healthy weight ahead of getting pregnant.

The authors of a 2018 study looked at 10 years of data on gestational diabetes and concluded that being overweight was a significant risk factor.

Other research confirms that having a BMI higher than 25 increases a woman’s likelihood of developing gestational diabetes. However, the researchers also noted that making dietary changes reduced the risk.

People looking to lose weight can take steps to modify their diet, such as:

measuring out smaller portion sizes

avoiding packaged food and “junk food”

replacing candy with fruit

eating more lean protein, such as fish and tofu, to stay fuller for longer

increasing fiber intake by eating plenty of vegetables and whole grains

replacing juices, dairy-laden coffee drinks, and sodas with herbal tea, black coffee, or sparkling water with lemon or lime slices

Exercise

Exercise is a vital part of maintaining a healthy weight. Both before and during pregnancy, exercise can help prevent gestational diabetes. Exercise helps the body become more sensitive to the insulin that the pancreas creates, which helps regulate blood sugar levels.

It is a good idea to start getting active before becoming pregnant, even if it means making simple, long-term lifestyle changes. For anyone with a sedentary lifestyle, steps that may help include:

walking or cycling to work

parking farther away from the destination and walking the rest of the way

taking the stairs

doing active leisure activities, such as hiking, gardening, or playing with children outdoors

trying yoga, ideally a class specifically for pregnant women or beginners

doing low-impact exercise, such as swimming

joining a running club to stay motivated

Anyone looking to prevent gestational diabetes should try to do about 30 minutes of moderate-intensity exercise on 4–5 days of the week. Moderate-intensity exercise should cause a person to break a sweat.

Good cardio options include stationary biking, walking, swimming, and using an elliptical machine.

However, pregnant women should speak to a doctor about any new exercise regimens and discuss which types are safe to do at each stage of pregnancy.

Eat well during pregnancy

Share on Pinterest Eating whole grains and nonstarchy vegetables can help reduce the risk of gestational diabetes.

During pregnancy, morning sickness, cravings, and food aversions can make it challenging to eat a nutritious diet.

However, eating well can help prevent gestational diabetes and ensure that a woman only gains a healthy amount of weight during each trimester.

Healthful food choices include:

lean proteins, such as beans, fish, tofu, and white poultry

healthful fats from nuts, olive oil, coconut oil, and other plant-based fat sources

whole grains, such as brown rice, pasta, oatmeal, and bread

low-fat dairy products, such as Greek yogurt

nonstarchy vegetables

fruits

It is best to avoid:

processed foods

sugary beverages, including store-bought coffee drinks, energy drinks, juices, and sodas

extra or added sugar

Attend routine care appointments

A woman should see a gynecologist regularly during pregnancy for routine care. During these visits, the doctor will ask about the pregnancy and any new symptoms.

They will also do a pelvic exam and use an ultrasound to look at the developing fetus. A doctor may recognize some of the early signs of gestational diabetes and suggest ways to help prevent it.

Between 24 and 28 weeks, a pregnant woman will have a gestational diabetes screening. If the results come back positive for gestational diabetes, the doctor will talk to her about how to prevent further complications.