Nutrition per 100g
Matcha for Gestational Diabetes
Matcha is a finely milled green tea powder made from shade-grown Camellia sinensis leaves, traditionally prepared by whisking the ground leaf directly into warm water. Unlike steeped green tea where the leaves are discarded, drinking matcha involves consuming the whole leaf suspension. This preparation yields an opaque, vivid emerald beverage with a rich, grassy aroma and an earthy, savoury flavour known as umami. Because it is prepared without added dairy or sweeteners in its classic form, plain whisked matcha is virtually free of fermentable sugars and delivers a concentrated source of tea polyphenols.
At a glance
Pregnancy safety
LimitBlood sugar impact
lowCarbs / 100 g
0.8gIs Matcha safe with gestational diabetes?
Plain matcha whisked in water fits smoothly into a gestational diabetes meal plan because it contains minimal carbohydrates. With roughly 0.8 grams of total carbohydrate and only 0.1 grams of sugar per 100 ml, it has a negligible impact on blood sugar levels. The principal consideration during pregnancy is caffeine intake rather than carbohydrate quantity. A standard serving contains around 60 to 70 mg of caffeine, which contributes toward the recommended 200 mg daily caffeine cap set by public health agencies. Reviewing your daily intake across tea, coffee, and chocolate can help keep you within this boundary.
Pregnancy safety
Limit how much Matcha you eat during pregnancy
Up to 2 cups (around 200 ml each) per day, provided total daily caffeine from all sources stays under 200 mg.
Both the NHS and ACOG advise limiting total caffeine consumption during pregnancy to under 200 mg per day. A single cup of matcha typically supplies around 60 to 70 mg of caffeine.
This is about food safety in pregnancy, not blood sugar — it applies whatever your readings look like. Confirm it with your midwife or doctor.
How does Matcha affect blood sugar during pregnancy?
Because plain matcha consists of whole green tea suspended in water without syrups or sweeteners, its glycemic index is recorded as zero and its glycemic load is low. It contains barely any digestible carbohydrate, meaning it does not supply the glucose required to cause a rapid postprandial rise. However, commercial matcha lattes and cafe drinks frequently contain substantial quantities of added cane sugar, condensed milk, or oat milk, which do raise blood glucose promptly. Sticking to plain water preparations tends to have minimal impact on blood glucose readings for many people after drinking morning or afternoon tea.
What is a safe portion of Matcha for gestational diabetes?
A sensible single serving of matcha is between 100 and 200 ml of liquid, prepared using about 2 grams of sifted green tea powder. A 200 ml serving delivers only 12 calories, approximately 1.6 grams of carbohydrate, 0.2 grams of sugar, and 1.2 grams of dietary fiber. Because the whole leaf is ingested, you receive modest fiber alongside roughly 60 to 70 mg of caffeine. Limiting consumption to one or two cups daily leaves adequate room for other incidental sources of caffeine while keeping overall beverage carbohydrate intake near zero.
How should I combine Matcha to manage blood sugar during pregnancy?
While plain matcha does not need balancing carbohydrates since it carries practically none, its caffeine can occasionally cause mild stomach sensitivity if consumed entirely on an empty stomach. Enjoying a cup alongside breakfast or an afternoon snack that features protein and wholesome fats can enhance comfort. Suitable partners include a boiled egg with wholewheat toast, a handful of raw walnuts, or plain unsweetened yoghurt sprinkled with chia seeds. If you prefer a creamy drink, add an unsweetened soya drink or unsweetened almond drink, keeping an eye on product labels for hidden sugars.
Last reviewed: August 31, 2026
Important Safety Information
Every pregnancy is different, and gestational diabetes is managed differently depending on your readings, your medication and how far along you are. The ratings and portions on this page are general information — not a diagnosis, a treatment plan or a medical device — and they cannot see your results.
- Low blood sugar:
- If you take insulin or diabetes medication, eating less carbohydrate than your team planned for can push your blood sugar too low. Treat a reading below 70 mg/dL (3.9 mmol/L), or symptoms such as shaking, sweating, confusion or a racing heart, with fast-acting carbohydrate immediately and retest after 15 minutes. Never use this page as a reason to skip or shrink a meal you were told to eat.
- Carbohydrate and ketones:
- Cutting carbohydrate hard to force a number down is not safe in pregnancy — it can produce ketones. Published guidance sets a minimum of 175 g of carbohydrate per day in pregnancy. Readings that stay above target for several days need your care team, not a smaller portion.
- Medication and insulin:
- The portions here are generic and know nothing about your insulin doses, your metformin, or the steroids given to mature your baby's lungs — all of which change how a meal affects you. Never adjust a dose or a mealtime based on this page.
- Food safety in pregnancy:
- Blood sugar is not the only thing that makes a food suitable while you are pregnant. Some foods with excellent glycemic numbers still carry mercury, vitamin A, listeria or alcohol risks, and those are judged separately from the ratings shown here. Check your national pregnancy food-safety guidance before adding an unfamiliar food.
- What these ratings can and cannot tell you:
- Glycemic index values, impact ratings and maximum servings are population averages taken from published tables. Two people eating the same food can get very different readings, so your own meter is the only measurement that describes you. Nutrition figures are indicative per 100 g and vary with brand, ripeness and preparation.
Contact your care team the same day if: your readings stay above target for several days; you have a reading below 54 mg/dL (3.0 mmol/L) or needed someone else's help to treat a low; you test positive for ketones; or your baby is moving less than usual. Seek emergency care for confusion, fainting, repeated vomiting, or a low you cannot bring back up.
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Sources & Editorial Review
Content independently developed by Dalo Labs ApS, informed by the American Diabetes Association's Standards of Care in Diabetes, ACOG's gestational diabetes guidelines, and the IADPSG consensus criteria. Not endorsed by or affiliated with any referenced organization. · Last reviewed: August 2026
- American Diabetes Association — Management of Diabetes in Pregnancy: Standards of Care in Diabetes—2026
- ACOG Practice Bulletin No. 190 — Gestational Diabetes Mellitus (reaffirmed 2026)
- USDA FoodData Central — Nutritional Database
- Atkinson et al. — International Tables of Glycemic Index and Glycemic Load Values 2021 (Am J Clin Nutr)
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