How Much Sugar In Pregnancy Is Too Much And Its Effects

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Food cravings are common during pregnancy, and sugar cravings constitute a big part of them. Can eating too much sugar during pregnancy harm the baby? In this post, we tell you all about consuming sugar during pregnancy.

Irrespective of whether you are pregnant or not, you should always keep your sugar intake in check to avoid complications. So, read on to know how much sugar you can have during pregnancy and learn about the possible side effects of eating excess sugar.

Can You Eat Sugar While Pregnant?

You can eat sugar and sugary foods as long as it is not in large quantities. But if you have gestational diabetes, you should be extra careful about your sugar intake.

Also, note that there is more refined sugar in candies, cookies, cakes and soft drinks that provide zero nutrition. If you are having them often, then you need to replace them with healthier options such as whole grains, fruits, and vegetables that have natural sugars.

How Much Sugar Can You Safely Consume During Pregnancy?

There are no standard recommendations for sugar consumption during pregnancy. The ideal sugar intake for you depends on your metabolic rate, blood sugar levels, and weight. In any case, it is good to limit the consumption of sugar to 25 grams or less in a day (1).

Can Eating Too Much Sugar In Pregnancy Harm The Baby?

Overeating sugary foods or carbohydrates may have an impact on the growing baby. Also, excess sugar in the blood due to gestational diabetes or uncontrolled type 2 diabetes can harm the baby.

Extra sugar can cross the placenta and increase the fetus’ blood sugar levels. This may result in increased insulin production in the baby’s body and make the baby grow larger, a condition referred to as macrosomia. Delivering a large baby can lead to complications such as the need for cesarean section. It can also be associated with premature birth (2).

What Are The Possible Side Effects Of Excess Sugar Consumption?

Excess sugar adds empty calories and deprives nutrition that you need during pregnancy.

  1. Aggravates pregnancy symptoms: Symptoms such as vomiting, heartburn and mood swings might get worse with excess sugar intake.
  1. Causes fatigue: Sugary foods provide empty calories and lack nutrition. They contain sucrose, cause a temporary spike in blood sugar, leaving you lethargic and tired.
  1. Leads to nutritional deficiency: Food cravings are normal during pregnancy. But if you crave sweets more than other foods, be careful not to overindulge, for sugars add empty calories leading to possible weight gain and nutrient deficiency.
  2. May cause excessive weight gain: Too much of sugar might make you gain unhealthy weight.
  3. Acute fatty liver (AFL): A diet rich in fructose-containing sugars can lead to fatty liver syndrome. It can also affect the fetal metabolism and thus lead to obesity or type II diabetes later in life (3).
  4. Might increase the risk of preeclampsia: High sugar intake influences the risk of preeclampsia in pregnant women (4).To avoid these possible risks, cut down the sugar intake.

Tips To Reduce Sugar Consumption During Pregnancy

To limit sugar intake:

  1. Limit sugar-containing foods and snacks. Or, you can stop eating refined sugar altogether. If that’s not possible, at least cut down on cakes, ice creams, pastries and other snacks with added sugar.
  2. Include sweet fruits as much as possible. If you crave for sugars, eat fruits such as mango, pineapple, and strawberry. Avoid fruit juices as they contain excess sugars.
  3. Avoid artificial sweeteners. Their harmful effects last even after pregnancy. Include better alternatives such as coconut sugar or honey.
  1. Pay attention to ingredients in packaged foods. Know the amount of sugar present in foods such as breakfast cereal, peanut butter, sauces and such. Consider only those with low sugar content.
  1. Do not keep candies, ice creams, cookies or any sugary foods at home. Buy them only when you want to have something sweet.
  1. Limit your sugar intake or find alternatives. You can avoid excess jam on bread, use one teaspoon of sugar instead of two for your tea or coffee and limit chocolate or ice cream consumption.

Or, you can just replace white sugar and artificial sweeteners with healthier alternatives.

Healthy Foods That Lower Blood Sugar In Pregnant Women

Improved diet and exercise can help lower blood sugar levels naturally. Healthy foods you should include in the diet are:

  1. Low-glycemic foods: Include more of low-glycemic index foods such as whole grains, beans, barley, oatmeal, fruits, and vegetables. These take longer to digest and prevent spikes in blood sugar.
  1. Probiotics: Probiotics are live, stomach-friendly bacteria that promote digestion. They regulate carbohydrate metabolism and maintain blood sugar levels. Natural yogurt is one of the best probiotics you can take (5).
  1. Fiber foods: Insoluble fiber maintains digestive health, and soluble fiber improves sugar levels. Oats and legumes have the highest levels of soluble fibers, while insoluble fiber is found in whole wheat foods. Fruits and vegetables contain both kinds of fiber.
  1. Proteins and healthy fats: Include more lean protein sources such as nuts, eggs, and poultry. Protein controls blood sugar levels, keeps you full and boosts energy. Healthy fats found in nuts, olive oil and avocados also keep you satiated and prevent craving for unhealthy foods.

Still got questions about eating sugar in pregnancy?

Frequently Asked Questions

1. Can sugar cause heartburn during pregnancy?

Sugar will not directly cause heartburn, but it can make your condition worse. Sugar found in certain foods such as chocolate, citrus fruits, peppermint, fatty foods and caffeinated beverages can trigger heartburn symptoms and should be avoided.

2. Can sugar cause diarrhea during pregnancy?

Sugar doesn’t cause diarrhea but can aggravate it. Avoid high-sugar fruit juices and soft drinks when you already have diarrhea. They draw more water into the stomach and make diarrhea worse.

3 Can sugar terminate the pregnancy?

No. Excess sugar consumption can only make you nauseous, but it will not terminate the pregnancy.

4. Is there a connection between high blood sugar and autism?

According to research, pregnant women who had gestational diabetes by the 26th week of pregnancy are 42% more likely to have children with autism. Researchers postulated that exposure of the uterus to high blood sugar would affect the brain development of the baby and increase the risk of developmental disorders (6).

Refined sugar is harmful to everyone. Sugar can be addictive, and its craving may increase during pregnancy. Excessive sugar in pregnancy can additionally increase the risk of gestational diabetes and other pregnancy problems, such as weight gain, high BP, fatigue, and nutritional deficiencies that may be harmful to fetal development. So, replace refined white sugar with unrefined ones from natural sources. Include more fruits in your diet to curb sugar cravings. Scan through the labels of packaged foods and snacks to know their sugar content and avoid artificial sweeteners.


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. How much is too much?.
  2. Gestational Age Infant Birth Weight and Subsequent Risk of Type 2 Diabetes in Mothers: Nurses’ Health Study II.
  3. Hin Hin Koand Eric Yoshida; Acute fatty liver of pregnancy.
  4. I Borgen et al; Maternal sugar consumption and risk of preeclampsia in nulliparous Norwegian women.
  5. Jackie Elias et al; Are probiotics safe for use during pregnancy and lactation?.
  6. HSE News.
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Rebecca Malachi

Rebecca is a pregnancy writer and editor with a passion for delivering research-based and engaging content in areas of fertility, pregnancy, birth, and post-pregnancy. She did her graduation in Biotechnology and Genetics from Loyola Academy, Osmania University and obtained a certification in ‘Nutrition and Lifestyle in Pregnancy’ from Ludwig Maximilian University of Munich (LMU). She has been into health and... more

Claudia Wilson

Claudia Wilson is a registered dietitian/ nutritionist, a Board Certified Specialist in Sports Nutrition (CSSD), and a Certified Strength and Conditioning Specialist (CSCS). She founded ALL of NUTRITION and authored ONE-TWO PUNCH. She holds a BS in Public Health and an MS in Nutrition. Claudia spent 10 years as sports nutritionist for the University of Utah Athletic Department and in... more