Because of the teratogenic effects secondary to excessive vitamin A intake, the WHO recommends as safe during pregnancy a maximum dose of up to 10,000 IU daily or 25,000 IU weekly after the first 60 days of gestation [10,12,38].
Is vitamin A safe during pregnancy?
Having large amounts of vitamin A can harm your unborn baby. So if you’re pregnant or thinking about having a baby, do not eat liver or liver products, such as pâté, because these are very high in vitamin A. Also avoid taking supplements that contain vitamin A.
Is 5000 IU of vitamin A safe during pregnancy?
The National Research Council’s recommended dietary allowance for vitamin A during pregnancy is 1,000 retinol equivalents (RE)/day, which is equivalent to 3,300 IU as retinol or 5,000 IU of vitamin A obtained from the typical American diet as a combination of retinol and carotenoids, e.g., beta-carotene.
Is vitamin A as beta-carotene safe during pregnancy?
Use in pregnancy and breastfeeding
Beta-carotene is converted to vitamin A in the body on an ‘as required’ basis which reduces the risk of vitamin A toxicity. This makes it safe during pregnancy when high levels of vitamin A itself (retinol) should be avoided.
How many IU of vitamin A is safe?
Levels of up to 10,000 IU (3,000 mcg) have been considered safe. Beyond that, though, vitamin A can build up to cause liver damage and brain swelling; pregnant women who ingest too much run the risk of fetal damage.
Why vitamin A is harmful during pregnancy?
During pregnancy, it’s important not to get too much preformed vitamin A, which can cause birth defects and liver toxicity in high doses. (However, it’s safe and beneficial to eat plenty of fruits and vegetables high in carotenoids.)
Why vitamin A is bad for pregnancy?
Given that vitamin A is fat soluble, your body stores excess amounts in the liver. This accumulation can have toxic effects on the body and lead to liver damage. It can even cause birth defects. For example, excessive amounts of vitamin A during pregnancy has been shown to cause congenital birth abnormalities.
Is 2000 IU of vitamin A safe during pregnancy?
Daily doses of 1000-2000 IU can be recommended in all antenatal women in South Asia, without estimating serum 25(OH) D levels. Higher doses can be used in symptomatic antenatal women, and in those with documented severe deficiency.
Why does vitamin A cause birth defects?
Background: Studies in animals indicate that natural forms of vitamin A are teratogenic. Synthetic retinoids chemically similar to vitamin A cause birth defects in humans; as in animals, the defects appear to affect tissues derived from the cranial neural crest.
The babies of women who consumed more than 10,000 international units of vitamin A daily — nearly four times the recommended amount — from supplements or food or both were more likely to be born with malformations of the head, heart, brain and spinal cord.
How much vitamin A is in prenatal vitamins?
Key Vitamins and Minerals During Pregnancy
|Nutrient (Daily Recommended Amount)||Why You and Your Fetus Need It||Best Sources|
|Vitamin A (750 micrograms for ages 14 to 18 years; 770 micrograms for ages 19 to 50 years)||Forms healthy skin and eyesight Helps with bone growth||Carrots, green leafy vegetables, sweet potatoes|
Should I take beta-carotene or vitamin A?
Vitamin A is indispensable at every stage of life! It should be consumed daily in the form of active vitamin A (retinol), available only in animal products (meat, fish, dairy, etc.), and beta-carotene or provitamin A, found in plants.
Is beta-carotene the same as vitamin A?
The human body converts beta carotene into vitamin A (retinol) – beta carotene is a precursor of vitamin A. We need vitamin A for healthy skin and mucus membranes, our immune system, and good eye health and vision. Vitamin A can be sourced from the food we eat, through beta carotene, for example, or in supplement form.