is Tea Safe For Pregnant Womens? Must Read This

Tea is one of the most popular beverages worldwide — and one that many women continue to enjoy during pregnancy.

Some drink it to simply decompress or help meet the increased fluid needs of pregnancy. However, a proportion of women appear to use tea as a natural remedy for pregnancy-related symptoms or as a tonic to prepare for childbirth in the last weeks of pregnancy (1Trusted Source).

Many may believe that tea is probably safe to drink while pregnant because it’s natural. In reality, women may benefit from reducing their intake of certain teas, while completely avoiding others throughout their pregnancy.

This article discusses the safety of tea during pregnancy, including which teas pregnant women may continue to drink, and which they may want to avoid.

pregnant


Limit your intake of caffeinated teas

Black, green, white, match, chi, and oblong teas are all sourced from the leaves of the Camellia insistent plant. They contain caffeine — a natural stimulant that should be limited during pregnancy.

They each provide approximately the following amount of caffeine per cup (240 mL) (2Trusted Source, 3Trusted Source, 4Trusted Source, 5Trusted Source, 6Trusted Source):

  • matcha: 60–80 mg
  • oolong tea: 38–58 mg
  • black tea: 47–53 mg
  • chai: 47–53 mg
  • white tea: 25–50 mg
  • green tea: 29–49 mg
Caffeine can easily cross the placenta, and your baby’s immature liver has difficulty breaking it down. As such, infants are more likely to experience side effects from amounts of caffeine that would otherwise be considered safe for adults.

Research suggests that infants exposed to too much caffeine during pregnancy may have a higher risk of being born preterm or with a low birth weight or birth defects. High caffeine intake during pregnancy may also increase the risk of miscarriage or stillbirth (7Trusted Source, 8Trusted Source, 9Trusted Source).

These risks appear minimal when pregnant women limit their caffeine intake to a maximum of 300 mg per day (8Trusted Source).

However, some women’s genetics may make them more sensitive to the ill effects of caffeine. For instance, research suggests that this small proportion of women may have a 2.4 times higher risk of miscarriage when consuming 100–300 mg of caffeine per day (8Trusted Source).

Caffeinated teas contain less caffeine than coffee and are generally considered safe to drink during pregnancy. However, their intake may need to be limited to avoid consuming too much caffeine per day.

SUMMARY
Black, green, matcha, oolong, white, and chai teas contain caffeine, a stimulant that should be limited during pregnancy. Although they’re generally safe, women may benefit from limiting their daily intake of these caffeinated teas during pregnancy.


Certain herbal teas may have risky side effects

Herbal teas are made from dried fruits, flowers, spices, or herbs and therefore contain no caffeine. However, they may contain other compounds considered unsafe during pregnancy, which may result in risky side effects.

Miscarriage or preterm labor

Teas that may increase your risk of miscarriage or preterm labor include (11Trusted Source, 12Trusted Source, 13Trusted Source, 14Trusted Source, 15Trusted Source):

  • fennel
  • fenugreek
  • sage
  • vervain
  • borage
  • pennyroyal
  • licorice
  • thyme
  • motherwort
  • lovage
  • blue cohosh
  • black cohosh
  • frankincense (in large amounts)
  • chamomile (in large amounts)

Menstrual bleeding

Teas that may stimulate or increase menstrual bleeding include (12Trusted Source, 16Trusted Source, 17Trusted Source):

  • motherwort
  • lovage
  • frankincense

Birth defects

Teas that may increase the risk of birth defects include (12Trusted Source):

  • motherwort
  • borage

Other side effects

Moreover, in rare cases, eucalyptus tea may cause nausea, vomiting, or diarrhea. What’s more, a case report suggests that regularly drinking chamomile tea during pregnancy may result in poor blood flow through a baby’s heart (1Trusted Source, 12Trusted Source).

Certain herbal teas may also contain compounds that interact with medications. Therefore, pregnant women should inform their healthcare providers of any herbal teas they are currently consuming or planning on consuming at any time during pregnancy (1Trusted Source).

Keep in mind that, due to the limited amount of research on the safety of herbal teas, a lack of evidence of negative side effects shouldn’t be seen as proof that the tea is safe to drink during pregnancy.

Until more is known, it may be best for pregnant women to remain cautious and avoid drinking any teas that have not yet been shown to be likely safe during pregnancy.

SUMMARY
Certain herbal teas may be linked to a higher risk of upset stomach, menstrual bleeding, miscarriage, birth defects, or preterm birth. Pregnant women may benefit from avoiding all teas not yet deemed as likely safe for pregnancy.


Some teas may be contaminated

Teas are not strictly tested or regulated. This means that women may be inadvertently drinking teas contaminated with unwanted compounds, such as heavy metals (19Trusted Source, 20Trusted Source).

For instance, one study tested common off-the-shelf black, green, white, and oolong teas. It found that 20% of all samples were contaminated with aluminum. Moreover, 73% of all samples contained lead levels considered unsafe during pregnancy (21Trusted Source).

In another study, women with the highest intake of green and herbal teas during the first trimester of pregnancy had 6–14% higher blood lead levels than those who drank the least. That said, all blood lead levels remained within the normal range (20Trusted Source).

Due to the lack of regulation, there’s also a risk of herbal teas containing ingredients not listed on the label. This increases the risk that pregnant women end up inadvertently consuming a tea tainted with an undesirable herb, such as the ones listed above.

It’s currently impossible to eliminate this risk. However, you may somewhat minimize it by only purchasing teas from reputable brands.

What’s more, it’s likely best to avoid purchasing teas in bulk, as they have a higher risk of becoming mixed with tea leaves that may be contraindicated during pregnancy from adjacent bulk bins.

SUMMARY
The manufacturing of teas is not regulated. As a result, teas may become tainted with unwanted compounds, such as heavy metals or herbs that have been linked to poor pregnancy outcomes.


Teas that may be safe during pregnancy

Most caffeinated teas are considered safe to drink during pregnancy, as long as they do not cause a woman’s total daily caffeine intake to exceed 300 mg (8Trusted Source, 11Trusted Source).

Women who are particularly sensitive to caffeine may benefit from aiming for a maximum of 100 mg of caffeine per day (8Trusted Source).

When it comes to herbal teas, there’s not a lot of research regarding their effects during pregnancy. As such, most health professionals advise pregnant women to avoid consuming any herb in amounts greater than you would find in foods (1Trusted Source, 12Trusted Source, 18Trusted Source).

That said, according to a few studies, herbal teas containing the following ingredients may be safe to consume during pregnancy:

  • Raspberry leaf. This tea is considered likely safe and believed to shorten labor and help prepare the uterus for birth. Research shows that it may shorten the length of the second stage of labor, but only by about 10 minutes (11Trusted Source, 22Trusted Source).
  • Peppermint. This tea is considered likely safe and commonly used to help relieve gas, nausea, stomach pain, or heartburn. However, no studies could be found to support these benefits (12Trusted Source).
  • Ginger. Ginger is one of the most studied herb remedies during pregnancy and considered possibly safe. Research suggests it reduces nausea and vomiting but, when consumed dried, should not exceed 1 gram per day (1Trusted Source, 12Trusted Source).
  • Lemon balm. This tea is considered possibly safe and commonly used to relieve anxiety, irritability, and insomnia. However, no study could be found to support these uses, and its safety hasn’t been studied in pregnancy .
Although generally considered safe, raspberry leaf may promote uterine contractions while peppermint may stimulate menstrual flow. Therefore, there’s some controversy regarding whether these teas are safe during the first trimester of pregnancy (12Trusted Source, 23Trusted Source).

Therefore, it may be best to avoid drinking these two teas in the first 12 weeks of pregnancy.

SUMMARY
Herbal teas considered to be possibly safe or likely safe during pregnancy include raspberry leaf, peppermint, ginger, and lemon balm teas. However, it may be best to avoid raspberry leaf and peppermint teas in the first trimester of pregnancy.

Conclusion

Despite their widespread popularity, not all teas are deemed safe for pregnancy.

Caffeinated teas like black, green, white, match a, and chi teas are generally considered safe. However, their intake may need to be limited to avoid ingesting excessive amounts of caffeine.

Most herbal teas should be avoided. Raspberry leaf, peppermint, ginger, and lemon balm tea are the only ones currently deemed as potentially safe. However, women may benefit from avoiding the first two during their first trimester of pregnancy.


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