Prawns — glycemic index and gestational diabetes guide

Allergen Information

Contains: Shellfish

Nutrition per 100g

Calories99 kcal
Carbohydrates0.2g
of which Sugars0g
Fiber0g
Protein24g
Fat0.3g
of which Saturated0.1g
Sodium111mg
Glycemic Index0

ProteinsShellfish

Prawns for Gestational Diabetes

Lean ProteinBlood Sugar FriendlyZero Carb

Prawns are a type of shellfish celebrated for their sweet, delicate flavor and firm texture. They are an exceptional source of high-quality, lean protein, making them a popular choice for healthy diets. Nutritionally, prawns are packed with essential vitamins and minerals, including vitamin B12, selenium, and iodine, while being very low in carbohydrates and fat. Their versatility in the kitchen allows them to be featured in a wide array of dishes, from simple salads to complex curries. This makes them a valuable ingredient for various culinary traditions and dietary needs.

At a glance

Pregnancy safety

Safe

Blood sugar impact

low

Carbs / 100 g

0.2g

Is Prawns safe with gestational diabetes?

Prawns are an outstanding choice for managing gestational diabetes. As a source of lean protein with virtually zero carbohydrates, they do not cause a rise in blood glucose levels. This makes them a safe and beneficial food to include in your meal plan. Furthermore, they provide crucial nutrients like iodine and protein, which are important for both maternal health and fetal development. Incorporating prawns can help you meet your protein needs without worrying about blood sugar spikes, making meal planning much simpler and less stressful.

How does Prawns affect blood sugar during pregnancy?

Prawns have a glycemic index (GI) of zero, meaning they have no direct impact on blood sugar levels when consumed on their own. The cooking method—whether steamed, grilled, or boiled—does not alter this fact. Any potential blood sugar spike will come from the ingredients served alongside the prawns, such as rice, pasta, or sugary sauces. Therefore, the focus should be on controlling the carbohydrate content of the entire meal rather than the prawns themselves. This makes them a reliable foundation for a blood-sugar-friendly dish.

What is a safe portion of Prawns for gestational diabetes?

A suitable portion for a main meal is about a generous handful of prawns. This amount provides a significant protein boost to keep you full and support stable blood sugar levels. Since prawns contain no carbohydrates, the portion size is more flexible compared to carb-heavy foods. The primary consideration is what they are served with and your overall daily caloric and protein goals. Always ensure they are cooked thoroughly to avoid any risk of foodborne illness, which is especially important during pregnancy.

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

To build a balanced, GD-friendly meal, pair prawns with high-fiber, non-starchy vegetables like broccoli, bell peppers, or leafy greens. Adding a source of healthy fat, such as avocado or a drizzle of olive oil, can further help stabilize blood sugar and increase satiety. If you include a carbohydrate, opt for a small portion of a low-GI complex carb like quinoa or barley. For example, a prawn and vegetable stir-fry with a small side of brown rice creates a complete and well-regulated meal.

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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