This sheet is about exposure to vitamin C in pregnancy and while breastfeeding. This information should not take the place of medical care and advice from your healthcare providers.
What is vitamin C?
Vitamin C is also known as ascorbic acid and dehydroascorbic acid. It is an essential vitamin. Essential vitamins are nutrients that the body cannot make, so people need to get vitamin C from other sources. Vitamin C is naturally found in some foods such as fruits and vegetables. Vitamin C is also available as a dietary supplement.
What is the Dietary Reference Intake of vitamin C for people who are pregnant?
The Recommended Dietary Allowance (RDA) is the amount people should aim to get each day. It is not recommended to take more than the RDA. The Tolerable Upper Intake Level (UL) is the dose that people can start to have side effects.
| recommended daily allowance (RDA) | Upper Limit (UL) | |
| Pregnant and 14 to 18 years old | 80 mg per day | 2,000 mg per day |
| Pregnant and 19 years old or older | 85 mg per day | 2,000 mg per day |
When looking at daily intake, remember to count amounts from foods, drinks, and from supplements. There are resources available online that list amounts of vitamin C typically found in foods. Labels on supplements will list the amount of vitamin C in the product.
Most people can get enough vitamin C from a balanced diet. It is unlikely that you will get too much vitamin C if your only source of vitamin C is in your food and drink.
People who have exposure to cigarette smoke or who have medical conditions that might affect how their body absorbs nutrients (such as cancer, eating disorders, kidney disease, malabsorption, or substance misuse) should talk with their healthcare providers about their specific nutritional needs.
I take vitamin C. Can it make it harder for me to get pregnant?
This has not been studied. If a person is getting recommended amounts of vitamin C (not too much and not too little) it would be unlikely to make it harder to get pregnant.
I just found out I am pregnant. Should I stop taking vitamin C?
It is not recommended to take more than the RDA of vitamins unless you are doing so under the care of your healthcare provider. Talk with your healthcare providers about all supplements that you take. Have the bottles or photos of the labels with you so that all ingredients and their recommended daily levels can be reviewed. Products that contain herbal supplements are typically not recommended during pregnancy. For more information on herbal products please see our fact sheet at: https://mothertobaby.org/fact-sheets/herbal-products-pregnancy/.
Does taking vitamin C increase the chance for miscarriage?
Miscarriage can occur in any pregnancy. Vitamin C has not been well studied in relation to miscarriage. If a person is getting recommended amounts of vitamin C (not too much and not too little) it would be unlikely that vitamin C would increase the chance for miscarriage.
Does taking vitamin C increase the chance of birth defects?
Every pregnancy starts out with a 3-5% chance of having a birth defect. This is called the background risk. Based on the data available, it is not known if vitamin C intake below the RDA or at doses higher than the UL increases the chance for birth defects.
Could taking vitamin C cause other pregnancy complications?
Based on the data available, it is not known if vitamin C intake below the RDA or at doses higher than the UL can cause other pregnancy complications.
Does taking vitamin C in pregnancy cause long-term problems in behavior or learning for the baby?
Based on the data available, it is not known if vitamin C intake below the RDA or at doses higher than the UL can cause behavior or learning issues.
Can I breastfeed while taking vitamin C?
Vitamin C is a normal part of breastmilk. People who are breastfeeding should continue to get the daily recommended amount of vitamin C. The RDA for breastfeeding is different from pregnancy.
| recommended daily allowance (RDA) | Upper Limit (UL) | |
| Breastfeeding and 14 to 18 years old | 115 mg per day | 2,000 mg per day |
| Breastfeeding and 19 years old or older | 120 mg per day | 2,000 mg per day |
People who have exposure to cigarette smoke or who have medical conditions that might affect how their body absorbs nutrients (such as cancer, eating disorders, kidney disease, malabsorption, or substance misuse) should talk with their healthcare providers about their specific nutritional needs. Talk to your healthcare provider about all of your breastfeeding questions.
I take vitamin C. Can it make it harder for me to get my partner pregnant or increase the chance of birth defects?
A few studies have found that vitamin C might help to improve fertility (ability to get partner pregnant) for some men but not for others. People who are experiencing infertility should discuss treatment options with their healthcare providers. In general, exposures that fathers or sperm donors have are unlikely to increase the risks to a pregnancy. For more information, please see the MotherToBaby fact sheet Paternal Exposures at https://mothertobaby.org/fact-sheets/paternal-exposures-pregnancy/.
Please click here for references.
OTIS/MotherToBaby recognizes that not all people identify as “men” or “women.” When using the term “mother,” we mean the source of the egg and/or uterus and by “father,” we mean the source of the sperm, regardless of the person’s gender identity.
