Allergen Information
Contains: Fish
Nutrition per 100g
Sprat for Gestational Diabetes
Sprats are small, oily fish closely related to herring and sardines, prized for their rich flavor and impressive nutritional profile. They are an excellent source of omega-3 fatty acids, high-quality protein, vitamin D, and vitamin B12. Typically, they are found smoked and canned in oil or brine, which preserves them and concentrates their flavor. Due to their small size, they are often eaten whole, including the soft, edible bones, which provides a significant amount of calcium. Their robust taste makes them a distinctive addition to many dishes.
At a glance
Pregnancy safety
SafeBlood sugar impact
lowCarbs / 100 g
0gIs Sprat safe with gestational diabetes?
Sprats are an exceptional food for managing gestational diabetes. As a zero-carbohydrate food, they have no direct impact on blood sugar levels, making them a very safe choice. They are packed with high-quality protein and healthy omega-3 fatty acids, which are beneficial for both maternal health and fetal brain development. The combination of protein and fat also promotes satiety, helping to prevent overeating and manage weight gain during pregnancy. Their nutrient density makes them a smart addition to any GD meal plan.
How does Sprat affect blood sugar during pregnancy?
With a glycemic index of zero, sprats do not cause any rise in blood glucose when eaten alone. Their significant protein and fat content plays a crucial role in blood sugar regulation by slowing down gastric emptying. This process delays the absorption of carbohydrates from other foods consumed in the same meal, leading to a more gradual and lower post-meal glucose spike. This blunting effect makes sprats a powerful tool for maintaining stable blood sugar readings throughout the day, which is the primary goal of GD management.
What is a safe portion of Sprat for gestational diabetes?
A suitable portion for a meal or substantial snack is one small can, which is typically around 100 grams. This amount delivers a robust serving of protein and healthy fats without being excessive in calories or sodium. Visually, this equates to the contents of a standard small tin of sprats, perfect for arranging on a piece of toast or mixing into a personal-sized salad. This portion is ideal for satisfying hunger and meeting protein needs without risking a blood sugar spike.
How should I combine Sprat to manage blood sugar during pregnancy?
To build a balanced, blood-sugar-friendly meal, pair sprats with high-fiber, complex carbohydrates. Excellent pairings include serving them on a slice of stone-ground whole-wheat or rye toast, with a side of quinoa salad, or mixed into a large bowl of leafy greens. The fiber from the grains and vegetables works synergistically with the protein and fat from the fish to ensure a very slow and steady energy release. Avoid pairing sprats with refined carbohydrates like white crackers, white bread, or sugary sauces, which can undermine their stabilizing benefits.
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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