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Oolong Tea During Pregnancy: Is It Safe to Drink While Expecting?

Written by: Camille Liu

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Time to read 5 min

Oolong tea is a beloved beverage known for its rich flavor, antioxidants, and metabolism-boosting benefits. However, if you’re pregnant, you may wonder, "Can you drink oolong tea while pregnant?" or "Is oolong tea safe during pregnancy?"


Pregnancy brings many dietary restrictions, and caffeine consumption is one of the biggest concerns for expecting mothers. Since oolong tea contains caffeine, it’s important to understand its effects on pregnancy before deciding whether to include it in your diet.


In this guide, we’ll explore the benefits, risks, and safe ways to consume oolong tea while pregnant so you can make an informed choice.

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"Can you drink oolong tea while pregnant? Yes, but like all things, the key is mindful consumption and knowing your caffeine limits."

i. Can You Drink Oolong Tea While Pregnant?

Yes, you can drink oolong tea during pregnancy, but only in moderation. The main concern with oolong tea pregnancy safety is its caffeine content.

A pregnant woman sitting comfortably on a couch, smiling while stirring a warm cup of herbal tea in a glass mug, symbolizing relaxation and mindful pregnancy self-care.

Caffeine in Oolong Tea and Pregnancy

  • Oolong tea contains between 30-60 mg of caffeine per 8-ounce cup, depending on the type and brewing method.
  • The American College of Obstetricians and Gynecologists (ACOG) recommends limiting caffeine intake to 200 mg per day during pregnancy.
  • Too much caffeine may lead to increased heart rate, insomnia, or even pregnancy complications.

Since oolong tea caffeine levels are lower than coffee but higher than some herbal teas, it’s safe to enjoy a cup or two per day, as long as you stay within the recommended caffeine intake.

ii. Benefits of Drinking Oolong Tea During Pregnancy

Although there are some risks, oolong tea when pregnant also offers health benefits that can support both you and your baby.

1. Antioxidants for a Strong Immune System

  • Oolong tea is rich in polyphenols, which help reduce inflammation and protect cells from damage.
  • These antioxidants support a healthy immune system, which is essential during pregnancy.

2. Supports Digestion and Reduces Morning Sickness

  • Many pregnant women experience digestive issues such as bloating or constipation.
  • The mild astringency of oolong tea can help support better digestion and reduce nausea.
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3. Provides a Gentle Energy Boost

  • Pregnancy fatigue is common, and oolong tea can provide a gentle caffeine boost without the jitters associated with coffee.
  • The lower caffeine content makes it a better choice than strong black coffee or energy drinks.

4. Promotes Healthy Skin and Hydration

  • The antioxidants in oolong tea during pregnancy can help support skin elasticity, reducing the risk of stretch marks.
  • Staying hydrated is crucial for amniotic fluid levels and overall pregnancy health, and oolong tea can be a refreshing addition to your fluid intake.
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iii. Risks of Drinking Oolong Tea While Pregnant

While oolong tea is safe for pregnancy in moderation, there are some risks that expecting mothers should be aware of.

1. Caffeine Sensitivity

  • Pregnant women metabolize caffeine more slowly, which means it stays in the bloodstream longer.
  • Consuming too much oolong tea while pregnant could lead to jitters, heart palpitations, or trouble sleeping.

2. Interference with Iron Absorption

  • Oolong tea contains tannins, which can reduce iron absorption from plant-based foods.
  • Iron is essential during pregnancy for preventing anemia and supporting your baby’s development.
  • To avoid this, drink oolong tea between meals, rather than with iron-rich foods.
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A steaming glass cup of tea placed on a windowsill, illuminated by the warm glow of the setting sun, with sheer curtains adding a cozy and tranquil ambiance.

3. Risk of Dehydration

  • While oolong tea contributes to hydration, excessive consumption may have a diuretic effect, leading to increased urination and fluid loss.
  • Make sure to balance your oolong tea intake with plenty of water and other hydrating fluids.

iv. How Much Oolong Tea is Safe During Pregnancy?

To safely enjoy oolong tea during pregnancy, keep the following guidelines in mind:

1. Stick to One or Two Cups a Day

  • 1-2 cups of oolong tea per day is considered safe, keeping caffeine intake within 200 mg daily.
  • If you drink other caffeinated beverages, be mindful of your total caffeine consumption.

2. Opt for Shorter Brewing Times

  • The longer you steep oolong tea, the more caffeine it releases.
  • To reduce caffeine, brew the tea for a shorter time (1-2 minutes instead of 3-5 minutes).

3. Drink Oolong Tea Between Meals

  • To prevent iron absorption issues, drink oolong tea at least an hour before or after meals.
  • Pair it with foods rich in vitamin C, which helps improve iron absorption.

4. Avoid Drinking Before Bed

  • Since oolong tea contains caffeine, avoid drinking it in the evening to prevent sleep disturbances.
A vintage porcelain teacup filled with warm herbal tea, elegantly placed on a matching saucer with fresh mint leaves and a sprig of lavender, evoking a classic and soothing tea-time ambiance.
A steaming glass cup of rich amber-colored tea placed on a saucer, with soft glowing lights in the background, creating a warm and cozy evening tea ambiance.

v. Best Oolong Tea Options for Pregnancy

If you want to enjoy oolong tea while pregnant, consider choosing low-caffeine or decaffeinated varieties.


Best Types of Oolong Tea for Pregnancy:

✅ Lightly oxidized oolong teas (e.g., Tie Guan Yin) – Lower caffeine levels.
✅ Decaffeinated oolong tea – A great choice if you want to avoid caffeine.
✅ Milk oolong tea – Naturally creamy and soothing, with mild caffeine.


Oolong Tea to Avoid During Pregnancy:

❌ Heavily oxidized or roasted oolong teas – Higher caffeine content.
❌ Oolong teas blended with herbs like licorice root – Some herbs may not be pregnancy-safe.


If you’re unsure, check with your doctor or midwife before adding oolong tea to your diet.

A beautifully set vintage tea table by a window, featuring an elegant floral teacup filled with warm tea, a matching teapot, and delicate dried flowers, evoking a nostalgic and cozy tea-time atmosphere.
A rustic tea setting with a vintage floral teacup filled with warm tea, accompanied by a matching teapot and delicate white blossoms, creating a peaceful and nostalgic atmosphere.

vi. Alternative Teas for Pregnancy

If you’d like to limit oolong tea caffeine levels, there are many pregnancy-safe herbal teas to consider:

  • Rooibos tea – Naturally caffeine-free, rich in antioxidants.
  • Ginger tea – Helps with nausea and digestion.
  • Peppermint tea – Eases bloating and morning sickness.
  • Chamomile tea – Promotes relaxation and better sleep.

If you want a low-caffeine alternative, white tea is another gentle option with less caffeine than oolong tea.

A warm cup of tea sitting on a rustic wooden windowsill, bathed in soft natural light, creating a cozy and tranquil moment of relaxation.
A vintage floral teacup filled with warm tea, placed beside a matching plate with loose black tea leaves and a delicate pink flower, evoking a nostalgic and elegant tea-time setting.

Final Verdict: Is Oolong Tea Safe for Pregnancy?

Yes, oolong tea is safe for pregnancy when consumed in moderation. The key is to limit caffeine intake, drink between meals, and choose lightly oxidized or decaffeinated oolong teas when possible.


Quick Summary:

Oolong tea is safe during pregnancy if limited to 1-2 cups per day.
✅ It provides antioxidants, supports digestion, and offers a gentle energy boost.
✅ Too much caffeine can lead to sleep disturbances and iron absorption issues.
✅ Drink between meals and avoid drinking late at night.
✅ Consider caffeine-free alternatives if you’re sensitive to caffeine.


By following these guidelines, you can enjoy oolong tea while pregnant without compromising your health or your baby’s well-being. Always consult your doctor or midwife if you have concerns about your caffeine intake during pregnancy.


Would you like more recommendations on pregnancy-safe teas? Let me know! 😊🍵

Works Cited

  1.  American College of Obstetricians and Gynecologists (ACOG)  . Moderate Caffeine Consumption During Pregnancy. ACOG Committee Opinion, 2020.

  2.  U.S. Food and Drug Administration (FDA)  . Caffeine and Pregnancy: What You Need to Know. U.S. FDA, 2021.

  3.  National Institutes of Health (NIH)  . Effects of Maternal Caffeine Intake on Pregnancy Outcomes. National Center for Biotechnology Information, 2022.

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