Matcha During Pregnancy: What to Know About Caffeine, Quality, and Moderation

Japanese UJI Matcha is a popular and healthy drink, but during pregnancy, its caffeine content and potential risks require careful consideration. In this guide, we break down what you need to know about drinking Japanese UJI Matcha while expecting—its caffeine levels, potential benefits, and possible risks.

Caffeine Content in Matcha vs Other Drinks

One of the main concerns about drinking Matcha during pregnancy is its caffeine content. Unlike regular green tea, which involves steeping leaves and discarding them, matcha uses the whole leaf, leading to a higher concentration of caffeine. Here’s a quick comparison of caffeine content:

Brewed coffee (240 ml): 90–120 mg
Matcha (1–2 grams): 50–80 mg
Black tea (240 ml): 40–70 mg
Regular green tea (240 ml): 25–40 mg

While Japanese UJI Matcha provides a moderate amount of caffeine, it also contains L-theanine, an amino acid that helps counteract caffeine’s jittery effects, leading to a more balanced and sustained energy boost compared to coffee.

How Pregnancy Affects Caffeine Processing

During pregnancy, your body processes caffeine more slowly, meaning it stays in your bloodstream for a longer period, potentially intensifying its effects. Since caffeine can cross the placenta, it’s essential to limit your intake to avoid potential risks, such as low birth weight, miscarriage, or preterm birth. Monitoring your total caffeine intake, including from coffee, tea, and other sources, is key to staying within safe intake ranges.

General Caffeine Guidelines During Pregnancy

Australian health authorities, including NSW Health and guidance used by pregnancybirthbaby.org.au, advise keeping total daily caffeine intake below 200 mg during pregnancy. This limit includes all sources of caffeine such as coffee, tea, chocolate, energy drinks, and some medicines.

Examples

Scenario 1
A regular café brewed coffee and a large matcha latte from a café can easily push you past the 200 mg limit, often reaching 250 to 300 mg combined.

Scenario 2
Two small cups of matcha, with little other caffeine during the day, usually stays well under the limit, about 50 to 80 mg.

Scenario 3
One cup of coffee with a small homemade matcha and a bit of dark chocolate may bring you close to the daily limit, around 150 to 180 mg.

Always speak with your GP, obstetrician, or midwife for advice that suits your situation.

Potential Benefits of Matcha During Pregnancy

Uji Matcha offers a range of health benefits that can support well-being during pregnancy:

Antioxidants: Uji Matcha is rich in catechins, particularly EGCG (epigallocatechin gallate), which help reduce oxidative stress and support cardiovascular health. While there’s limited direct evidence linking matcha to pregnancy outcomes, antioxidants are beneficial in maintaining overall health.
L-Theanine: This amino acid promotes calm focus and helps mitigate the jittery effects of caffeine. Many pregnant individuals appreciate matcha’s smoother energy boost, which provides sustained alertness without the crash of coffee.
Micronutrients: Matcha contains small amounts of essential nutrients such as Vitamin C, Vitamin A, and trace minerals like manganese. While matcha can contribute to your nutrition, it should not replace a balanced diet or prenatal vitamins.

Potential Risks and Considerations

While Japanese UJI Matcha has potential benefits, there are potential risks that need careful attention during pregnancy:

Caffeine Sensitivity: Pregnancy can increase sensitivity to caffeine, and too much can lead to issues such as insomnia, anxiety, and increased heart rate. If you experience these symptoms, consider cutting back on caffeine, including matcha.
Folate Absorption: Green tea catechins, including those in matcha, may interfere with folate absorption. Folate is crucial for neural tube development, so it’s important to space out matcha consumption from folate-rich meals or supplements to minimise this risk.
Heavy Metals: Some herbal infusions — for example, pure root or loose leaf herbal teas like dandelion root tea — can affect digestion or interact with herbs differently during pregnancy, reinforcing the need for individual tolerance awareness.

Making Informed Choices About Matcha During Pregnancy

Deciding whether to include Matcha in your pregnancy diet is a personal choice that should be made in consultation with your healthcare provider. While matcha offers some health benefits, its caffeine content and associated risks require moderation and thoughtful consideration.

If you do choose to enjoy Matcha during pregnancy, keep track of your total caffeine intake from all sources and consult your doctor or midwife for guidance tailored to your specific needs. This approach will help you enjoy the benefits of matcha while ensuring the health and safety of both you and your baby.