Is It Safe To Eat Corn During Pregnancy?

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Corn, also known as maize, is a well-known cereal grain extensively consumed worldwide. Yet, is it safe to eat corn during pregnancy and give in to your crunchy corn craving? The cereal is a good source of fiber, vitamins, and minerals, but all forms of corn may not be good for pregnant women. Read this post that discusses the value corn adds to your pregnancy diet, possible risks, storage tips, and recipes.

Can You Eat Corn During Pregnancy?

You may eat corn during pregnancy but in moderate amounts, as it helps improve digestion, and supports immunity. But excessive consumption might lead to gastrointestinal symptoms such as indigestion.

Nutritional Value Of Corn

The nutrients present in 100g of raw corn are as follows (1):

NutrientRDA (2)(3)Per 100g of corn
Total folate600µg46µg
Dietary fiber28g2.7g
Protein60g (3)3.22g
Carbohydrate175g19.02mg
Thiamine (vitamin B1)1.4mg0.2mg

What Are The Health Benefits Of Corn During Pregnancy?

1. Constipation

The fiber content in corn might help address digestive problems, such as constipation, that you may experience during early pregnancy (4).

2. Macular degeneration

Corn contains a carotenoid substance called zeaxanthin that has oxidative properties. Zeaxanthin may help prevent macular degeneration of the eye (3) (5). However, further studies are needed to establish the carotenoids’ role in preventing certain disorders that affect infants (6).

3. Birth defects

Corn has folic acid that is necessary during pregnancy to reduce the risk of spina bifida and other neural malformations in the baby (7).

4. Muscle and nervous system

Corn contains thiamine that plays a role in energy metabolism and is essential for muscle and nervous system functioning (8) (9).

5. Immunity

The beta-carotene in corn provides vitamin A required for immune system functioning and healthy growth and development of the baby (10).

Possible Side Effects Of Overeating Corn When Pregnant

Potential side effects of corn may occur due to over-consumption.

  • According to one small group study in mice, intake of polyunsaturated fatty acids such as corn could alter the behavior and activity of the baby (11).
  • It may cause indigestion; therefore, it is better to have fresh corn in limited amounts.

From fresh raw corn to cooked and baked and popped, corn is available in a variety of edible forms. But are all of them good for you to eat during pregnancy?

Corn Products To Eat And Those To Avoid

Not all corn products may be safe during pregnancy. The following list can help you get an idea of what could be taken and avoided. However, it is not exhaustive.

EatAvoid
Fresh corn from the cob (gluten-free)Microwavable popcorn (contain toxic chemicals, diacetyl, and perfluorooctanoic acid)
Labeled GMO-free cornCorn syrup (contains high-fructose sugars)
Organic corn (rich in nutrients)Cornstarch (non-food substance)
Plain popcorn (butter, salt, and caramel-free)Corn oil (full of fat and calories)
Frozen corn (contains fewer calories and less sodium)Canned corn (goes through a lot of processing)

So, how can you enjoy the allowed forms of corn in pregnancy?

Ways To Consume Corn During Pregnancy

You may have corn as a snack.

  • Add to pizzas, pasta, and other dishes to enhance their taste.
  • Grill or barbecue the cob and eat corn directly from it.
  • Boil corn and add seasoning of your preference.

Choose the right variety of corn to enjoy the taste of these dishes.

Tips For Buying and Storing Corn

Follow the below tips while buying corn:

  • Look for husks that are green in color.
  • Choose only fresh corn. You may check the freshness by pulling off the husk and piercing the kernel with a fingernail.
  • If the corn kennel is firm but soft and releases a little juice on being punctured, it is fresh. On the other hand, if it is discolored or dented, it is not.
  • Corn exposed to high temperatures can lose a bit of its sweet flavor, as the sugar gets converted to starch.
  • Let the corn remain in the husk; put it in the refrigerator.
  • If you have husked the corn, put it in a plastic bag, and refrigerate it.
  • If you want to eat fresh corn, eat it as soon as you bring it home.

Fresh corn has a certain appeal that might compel you to have more than what you should. And that can be a bad thing.

Is Craving Cornstarch During Pregnancy Related To The Pica Syndrome?

Sometimes, you may crave for cornstarch during pregnancy. This might be because of a condition called the Pica Syndrome, which involves the craving of non-food substances such as clay, ice, dirt, and more (12). If you experience such symptoms, talk to your doctor.

Why Is Microwave Popcorn Not Safe During Pregnancy?

You may want to avoid microwave popcorn for these reasons (13).

  1. They contain a chemical called diacetyl, which is used to imitate the butter flavor. The research shows that the workers at a popcorn manufacturing factory developed a lung disorder called bronchiolitis obliterans (popcorn worker’s lung) as they inhale this chemical every day for a long period.
  1. A toxic chemical called perfluorooctanoic acid, which is known to be found in the microwavable popcorn bags, breaks down upon heating. It is a carcinogen and likely to cause several types of cancer.

Next, we answer a few common queries about eating corn during pregnancy.

Frequently Asked Questions

1. Can you eat corn if you have gestational diabetes?

You may reduce corn consumption if you have gestational diabetes, as it is a moderate glycemic food (14). Low GI foods are likely to slowly and steadily release glucose, which might help in managing blood glucose levels (15).

2. Is overeating popcorn harmful during pregnancy?

Too much of anything is harmful. The same is the case with popcorn, as it may contain condiments such as butter, salt, or caramel. Excess of salt could lead to water retention, blood pressure fluctuations, and more, and excess of sugar could result in a host of other health issues. Likewise, the excess butter might lead to fat and sodium level buildup in the body.

3. Does eating cornstarch during pregnancy cause amylophagia?

The compulsive eating of cornstarch in large quantities during pregnancy may lead to amylophagia, a form of pica disorder. The book Nutrition Through the Life Cycle by Judith E. Brown talks about its complications such as elevated blood sugar levels, preterm labor, abnormalities in baby development, and high birth weight.

4. Can corn cause weight gain during pregnancy?

Corn is rich in carbohydrates and nutrients and is a significant source of energy that may lead to weight gain during pregnancy.

5. Is eating undercooked corn on the cob dangerous for pregnant women?

It may not be dangerous to have undercooked corn on the cob. Prefer the organic variety and be careful not to have it in excess quantities.

Corn is loaded with fiber, vitamins, and minerals and helps the body by relieving constipation, enhancing immunity, and reducing the risk of congenital disabilities. However, you should be cautious while consuming corn during pregnancy as an excess may cause gastrointestinal issues. Moreover, all types of corn products are not good for pregnant women. You may consume fresh corn from the cob or plain popcorn, but you should avoid corn syrup or microwavable popcorn. If you feel uneasy after eating corn, check with your doctor.

References:

MomJunction's articles are written after analyzing the research works of expert authors and institutions. Our references consist of resources established by authorities in their respective fields. You can learn more about the authenticity of the information we present in our editorial policy.
1. Basic Report; Corn, sweet, white, raw; USDA
2. Pregnancy and Lactation; Linus Pauling Institute | Oregon State University
3. Michelle A. Kominiarek and Priya Rajan; Nutrition Recommendations in Pregnancy and Lactation; Med Clin North Am (2017)
4. Dietary Fiber; University Health Sciences Tang Center (2009)
5. Olaf Sommerburg et al.; Fruits and vegetables that are sources for lutein and zeaxanthin: the macular pigment in human eyes; British Journal of Ophthalmology, BMJ Journals
6. Monika A. Zielińska et al.; Health Effects of Carotenoids during Pregnancy and Lactation; Nutrients (2017)
7. Folate; Home & Garden Information Center; Clemson University (2005)
8. Thiamin; National Institutes Of Health (2019)
9. Sir Peter Gluckman et al.; Vitamin B1 (thiamine) in pregnancy and breastfeeding; Oxford Medicine Online (2015)
10. Carotenoids; Linus Pauling Institute | Oregon State University
11. Raygada M et al.; High maternal intake of polyunsaturated fatty acids during pregnancy in mice alters offsprings’ aggressive behavior, immobility in the swim test, locomotor activity and brain protein kinase C activity; J Nutr. (1998)
12. Sera Young and Jean Tiffany Cox; Pica in pregnancy; UpToDate
13. Thomas Tatem Moore.; Is Microwavable Popcorn bad for you; The Pennsylvania State University (2016)
14. TASTYRECIPES For People with Diabetes and Their Families; Centers for Disease Control and Prevention (2018)
15. Patrick J. Skerrett; Use glycemic index to help control blood sugar; Harvard Health Publishing (2012)
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Dr. Shikha Sharma

(MBBS)
Celebrity nutrition advisor Dr. Shikha Sharma has founded Dr. Shikha’s Nutrihealth in 1998. Dr. Shikha has done her MBBS from Maulana Azad Medical College and her organization, Dr. Shikha's NutriHealth, has over 50 Ayurveda experts and nutritionists who provide consultation services to the clients. The Nutrihealth expert team handles weight loss/weight gain, PCOS, thyroid, diabetes, cholesterol, post-pregnancy weight loss and... more

Swati Patwal

Swati Patwal is a clinical nutritionist and toddler mom with over eight years of experience in diverse fields of nutrition. She started her career as a CSR project coordinator for a healthy eating and active lifestyle project catering to school children. Then she worked as a nutrition faculty and clinical nutrition coach in different organizations. Her interest in scientific writing... more