Orange — glycemic index and gestational diabetes guide

Allergen Information

May contain: Citrus

Nutrition per 100g

Calories47 kcal
Carbohydrates11.8g
of which Sugars9.4g
Fiber2.4g
Protein0.9g
Fat0.1g
of which Saturated0g
Sodium0mg
Glycemic Index43

Fruits & VegetablesFruits

Orange for Gestational Diabetes

whole fruit onlypair with proteinportion controlavoid juice

Oranges are a popular citrus fruit known for their vibrant color and refreshing taste, belonging to the Rutaceae family. They are celebrated for their high concentration of vitamin C, a powerful antioxidant that supports immune function and skin health. Beyond vitamin C, oranges provide dietary fiber, potassium, and various beneficial plant compounds like flavonoids. Consuming the whole fruit rather than just the juice ensures you receive the full benefits of its fiber content. This makes them a nutritious and hydrating addition to a balanced diet, available in varieties like Navel, Valencia, and blood oranges.

At a glance

Pregnancy safety

Safe

Blood sugar impact

low

Carbs / 100 g

11.8g

Is Orange safe with gestational diabetes?

Oranges can be a beneficial part of a gestational diabetes meal plan when consumed correctly and in moderation. Their fiber content is key to their suitability, helping to slow down the absorption of natural sugars into the bloodstream. However, it is crucial to choose the whole fruit over orange juice, as juice lacks fiber and can cause a rapid spike in blood glucose. The natural sweetness can satisfy cravings for sweets without resorting to processed sugars. Proper portioning is essential to keep carbohydrate intake within your prescribed limits for a meal or snack.

How does Orange affect blood sugar during pregnancy?

The whole orange has a low glycemic index (GI) of around 43, meaning it has a relatively slow and minimal impact on blood sugar levels. This is primarily due to the soluble and insoluble fiber, which forms a gel-like substance in the digestive tract, slowing glucose absorption. In stark contrast, orange juice has a higher GI because the fiber has been removed, allowing the sugar to be absorbed much more quickly. Therefore, sticking to the whole fruit is a critical strategy for maintaining stable blood glucose control throughout your pregnancy.

What is a safe portion of Orange for gestational diabetes?

A safe and appropriate portion is one small to medium-sized orange, which is approximately 150 grams. This serving size provides a controlled amount of carbohydrates, typically around 15-18 grams, which fits well within most gestational diabetes carbohydrate targets for a snack. It's important to account for this in your daily carbohydrate count and avoid consuming multiple fruits at once. Using your hand as a guide, a suitable orange should fit comfortably in your palm, ensuring you don't accidentally choose an overly large one.

How should I combine Orange to manage blood sugar during pregnancy?

To further stabilize blood sugar response, it is highly recommended to pair an orange with a source of protein or healthy fat. This combination slows digestion and absorption even more effectively, preventing potential glucose spikes. Excellent pairing options include a small handful of almonds, a tablespoon of chia seeds mixed into yogurt, or a piece of low-fat cheese. This strategy turns a simple fruit snack into a more balanced, blood-sugar-friendly mini-meal that provides sustained energy and promotes better glycemic control.

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

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