Is Green Tea Safe During Pregnancy? (Updated 2026 Guide)
Updated April 13, 2026
The Answer
Yes, with caution. Green tea is safe during pregnancy when limited to 1-2 cups per day to stay under the 200mg caffeine guideline. However, green tea can interfere with folic acid absorption, so avoid drinking it with meals or prenatal vitamins.
Green tea contains caffeine, which should be limited to under 200mg daily during pregnancy according to ACOG guidelines. Additionally, the catechins in green tea can reduce folic acid absorption a critical nutrient for preventing neural tube defects. Most green tea products in our database (382 out of 578) receive an A grade, but some contain added ingredients like ginseng or artificial sweeteners that warrant extra caution.
Pregnancy Safe is 100% independent and research driven. No companies pay to promote or sponsor products.
✓ What's Safe
- • Plain green tea without added herbs like ginseng or hibiscus
- • Caffeine content listed on packaging (aim for 25-50mg per cup)
- • Limit to 1-2 cups daily to stay well under 200mg caffeine
- • Drink between meals, not with food or prenatal vitamins, to minimize folic acid interference
- • Decaffeinated green tea options for later in the day or if sensitive to caffeine
- • Trusted brands like Tazo, Trader Joe's, Yogi Pure Green, or Ito En with simple ingredient lists
✗ What to Avoid
- • Green tea with ginseng linked to embryonic abnormalities in animal studies
- • Products with hibiscus has hormonal activity and potential anti implantation effects
- • Green tea with added licorice root associated with developmental concerns
- • Diet green teas with aspartame or artificial sweeteners
- • Drinking green tea with meals or prenatal vitamins (reduces iron and folic acid absorption)
- • Exceeding 2-3 cups per day or consuming alongside other caffeine sources
Most Common Ingredients in Green Tea Products
We analyzed 578 green tea products. Here are the most common ingredients, ranked by how often they appear:
Ingredients to Watch Out For in Green Tea
These are the most common flagged ingredients across 578 green tea products we analyzed.
aspartame
CAUTION
Aspartame is an artificial sweetener commonly found in diet sodas, sugar free foods, and tabletop sweeteners. Has been linked in animal studies to placental dysfunction, reduced birth weight, and oxidative stress, with limited human data suggesting possible developmental concerns.
Found in 33 of 578 products (6%)
high fructose corn syrup
CAUTION
High fructose corn syrup is a sweetener derived from corn starch and widely used in processed foods and beverages. Has been associated with placental insufficiency, fetal growth restriction, and metabolic programming of offspring in animal studies, and with gestational diabetes and preeclampsia in epidemiological studies of humans.
Found in 28 of 578 products (5%)
ginseng extract
CAUTION
Ginseng extract is an herbal supplement for energy and immunity. May cause embryonic abnormalities based on animal studies and increases bleeding risk.
Found in 26 of 578 products (4%)
ginseng root extract
CAUTION
Ginseng root extract is an herbal supplement for energy and immunity. May cause embryonic abnormalities based on animal studies and increases bleeding risk.
Found in 14 of 578 products (2%)
hibiscus
CAUTION
Hibiscus is a tropical plant used in teas for antioxidant benefits. Has hormonal activity and may have anti implantation effects based on animal studies.
Found in 13 of 578 products (2%)
potassium benzoate
CAUTION
Potassium benzoate is a food preservative in beverages and processed foods. Has shown birth defects in animal studies at high doses and may form benzene when combined with vitamin C.
Found in 12 of 578 products (2%)
licorice root
CAUTION
Licorice root is an herb used in teas and traditional remedies. Is associated with lower IQ and attention problems in children when consumed heavily during pregnancy.
Found in 7 of 578 products (1%)
potassium sorbate and sodium benzoate
CAUTION
Potassium sorbate and sodium benzoate is a common food preservative in processed foods. Has shown birth defects in animal studies at high doses.
Found in 7 of 578 products (1%)
Green Tea Products We've Analyzed
We graded 578 green tea products for pregnancy safety. 382 received an A grade.
Pregnancy Safe Green Tea Products
We found 382 pregnancy safe options. Here are some top picks.
| Grade | Product | Brand |
|---|---|---|
| A | Matcha Green Tea | Trader Joe'S |
| A | Itoen Oi Ocha Smooth Roasted Green Tea 80G | Itoen |
| A | Organic Zen Green Tea | Tazo |
| A | Teavana Jade Citrus Mint, Green Tea With Spearmint And Lemongrass, 15 Sachets | Teavana |
| A | Mighty Leaf Organic Matcha Green Tea - 1.5Oz | Mighty Leaf |
Your Questions Answered
Can pregnant women drink green tea?
Yes, pregnant women can drink green tea in moderation. The key is staying under 200mg of caffeine per day from all sources combined. A typical cup of green tea contains 25-50mg of caffeine, so 1-2 cups daily is generally considered safe. Choose plain green tea without added herbs like ginseng or hibiscus, and avoid drinking it with meals to prevent interference with nutrient absorption.
What are the risks of green tea during pregnancy?
The main risks of green tea during pregnancy are caffeine overconsumption and reduced folic acid absorption. Excessive caffeine intake has been linked to low birth weight and pregnancy complications. Green tea's catechins can partially block folic acid absorption in the intestines, which is concerning since folate is essential for preventing neural tube defects. Additionally, some green tea products contain ginseng or other herbs that aren't recommended during pregnancy.
Does green tea decrease folic acid?
Yes, green tea can decrease folic acid absorption. The catechins in green tea have been shown to partially prevent intestinal cells from absorbing folic acid. Studies indicate that women who drink large amounts of green tea have lower folate levels in their system. To minimize this effect, avoid drinking green tea with meals or when taking your prenatal vitamin. Space your tea consumption at least an hour away from eating or supplements.
Can I drink tea at 4 weeks pregnant?
Yes, you can drink tea at 4 weeks pregnant, but moderation is important. At this early stage, the neural tube is forming, making adequate folic acid crucial. Limit green tea to 1-2 cups daily and don't drink it with your prenatal vitamin. Total caffeine from all sources (coffee, tea, soda, chocolate) should stay under 200-300mg per day. If you're concerned, decaffeinated green tea is a safer option during the first trimester.
Is matcha safe during pregnancy?
Matcha can be consumed during pregnancy but requires more caution than regular green tea. Because matcha is made from whole ground tea leaves, it contains higher concentrations of both caffeine and catechins. A typical serving of matcha has 70mg of caffeine compared to 25-50mg in brewed green tea. Limit matcha to one serving per day and count it toward your total daily caffeine intake. Avoid matcha lattes with added sweeteners or if they contain other herbs.
How much green tea is safe during pregnancy?
Most experts recommend limiting green tea to 1-2 cups (8-16 oz) per day during pregnancy. This keeps caffeine intake from green tea around 50-100mg, leaving room for other caffeine sources while staying under the 200mg daily limit. If you drink coffee or other caffeinated beverages, reduce your green tea accordingly. Some women choose to switch to decaffeinated green tea to enjoy the taste without worrying about caffeine limits.
How Do We Score Products for Pregnancy Safety?
We analyze each product's ingredients and category to flag known risks and provide cautionary notices for general category safety concerns.
A - Safe
Excellent choice! All ingredients are considered safe during pregnancy.
What to do: Use with confidence.
B - Likely Safe
Pretty much safe with very minimal risk. Some ingredients may have limited pregnancy studies, but no significant safety concerns have been identified.
What to do: Use with confidence.
C - Limit
Contains ingredients with some pregnancy considerations. Research shows these ingredients may have limited safety data, potential for minor hormonal effects, or require caution based on animal studies.
What to do: Use sparingly and consider safer alternatives when available.
D - Caution
Similar to C grade but contains multiple cautionary ingredients. The combination increases overall concern.
What to do: Try to avoid if that makes you feel better. If you've already used it, no need to panic.
F - Avoid
Contains ingredients with established risks during pregnancy. Research shows these can cause birth defects, developmental harm, or serious maternal complications.
What to do: Do not use during pregnancy. If you've already used it, don't worry - contact your OBGYN if concerned.
People Also Checked
See our full guide to tea during pregnancy.
References
- https://www.acog.org/womens health/experts and stories/ask acog/how much coffee can i-drink while pregnant
- https://www.acog.org/clinical/clinical guidance/committee opinion/articles/2010/08/moderate caffeine consumption during pregnancy
- https://pubmed.ncbi.nlm.nih.gov/41081642/
- https://pubmed.ncbi.nlm.nih.gov/40049244/
- https://pubmed.ncbi.nlm.nih.gov/39672024/
- https://pubmed.ncbi.nlm.nih.gov/39547074/
- https://pubmed.ncbi.nlm.nih.gov/38724746/
- https://pubmed.ncbi.nlm.nih.gov/37630817/
- https://pubmed.ncbi.nlm.nih.gov/37652922/
- https://pubmed.ncbi.nlm.nih.gov/37686804/
- https://pubmed.ncbi.nlm.nih.gov/37299481/
- https://pubmed.ncbi.nlm.nih.gov/36414169/
- https://pubmed.ncbi.nlm.nih.gov/36435291/
- https://pubmed.ncbi.nlm.nih.gov/36501030/
- https://pubmed.ncbi.nlm.nih.gov/36361530/
- https://pubmed.ncbi.nlm.nih.gov/35963112/
- https://pubmed.ncbi.nlm.nih.gov/35993876/
- https://pubmed.ncbi.nlm.nih.gov/33845854/
- https://thrivemarket.com/blog/heres a-convincing reason to avoid high fructose corn syrup during pregnancy
- https://www.frontiersin.org/journals/nutrition/articles/10.3389/fnut.2023.1203063/full
