Nutrition per 100g
Quince for Gestational Diabetes
Quince is a unique and ancient fruit, closely related to apples and pears, but with a much firmer texture and astringent flavor when raw. Its tough, yellow skin covers a dense, pale flesh that is wonderfully aromatic, with notes of citrus, apple, and vanilla. Due to its high tannin content, quince is almost always consumed cooked, which magically transforms its character. Upon cooking, the flesh softens, turns a beautiful rosy pink, and develops a sweet, fragrant, and complex flavor. It is prized for its high pectin content, making it ideal for jams, jellies, and pastes.
At a glance
Pregnancy safety
SafeBlood sugar impact
lowCarbs / 100 g
15.3gIs Quince safe with gestational diabetes?
Cooked quince, prepared without added sugar, is a highly suitable fruit for a gestational diabetes diet. Its primary benefits are its low glycemic index and high soluble fiber content, which help in maintaining stable blood glucose levels. While the fruit does contain natural sugars, its fibrous structure ensures these are released slowly into the bloodstream. It is essential to distinguish between simply cooked quince and commercially prepared quince products like jellies or pastes, which are loaded with sugar and should be avoided. This fruit offers a nutritious way to satisfy a sweet craving.
How does Quince affect blood sugar during pregnancy?
The glycemic impact of quince is heavily dependent on its preparation. When poached or baked without sugar, its glycemic index (GI) is low, estimated around 38. The soluble fiber, pectin, forms a gel in the digestive tract, significantly slowing the absorption of glucose and preventing sharp blood sugar spikes. Conversely, quince jam or 'membrillo' paste has a very high GI due to the large quantities of added sugar used in their production. Therefore, the cooking method is the critical factor in determining its effect on blood sugar management.
What is a safe portion of Quince for gestational diabetes?
A sensible portion of cooked quince is about one small to medium fruit, which equates to roughly a cup of sliced fruit. This serving size provides beneficial fiber and nutrients without contributing an excessive carbohydrate load. It is crucial to measure portions after cooking and to ensure no sugar was added during the process. Always avoid pre-sweetened quince products and focus on preparing it yourself to control all the ingredients, ensuring it remains a blood-sugar-friendly choice throughout your pregnancy.
How should I combine Quince to manage blood sugar during pregnancy?
To further stabilize blood sugar, always pair cooked quince with a source of protein and healthy fat. For a balanced snack or dessert, serve poached quince slices with a generous dollop of plain Greek yogurt and a sprinkle of chopped walnuts or almonds. The protein and fat from the yogurt and nuts will slow down digestion and glucose absorption even more effectively. You can also incorporate cooked quince into savory dishes, serving it alongside roasted chicken or pork to create a balanced meal plate.
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.
By using this guide, you agree to our Terms and Conditions.
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
Track your meals with SugarCurve
Log this food, track your blood sugar, and get personalized guidance — all in the app.
Start Free Trial →