Allergen Information
Contains: Fish
Nutrition per 100g
Fresh Herring for Gestational Diabetes
Fresh herring is a small, oily forage fish known for its rich flavor and significant nutritional benefits. It is a powerhouse of omega-3 fatty acids, vitamin D, and selenium, making it a valuable addition to any diet. Herring has a firm yet delicate texture and a distinct taste that is stronger than many white fish but less intense than mackerel. This fish plays a crucial role in marine ecosystems and is often considered a sustainable seafood choice when sourced responsibly. Its versatility in the kitchen has made it a staple in various global cuisines, especially in Northern European culinary traditions.
At a glance
Pregnancy safety
SafeBlood sugar impact
lowCarbs / 100 g
0gIs Fresh Herring safe with gestational diabetes?
Fresh herring is an outstanding choice for managing gestational diabetes. It is completely free of carbohydrates, meaning it has no direct impact on blood glucose levels. Its high content of protein and anti-inflammatory omega-3 fatty acids supports stable blood sugar and provides essential nutrients for both maternal health and fetal brain development. Including fatty fish like herring in your diet is a proactive way to build a nutrient-dense, blood-sugar-friendly eating plan. The healthy fats and protein contribute to satiety, helping to prevent overeating and manage weight gain during pregnancy.
How does Fresh Herring affect blood sugar during pregnancy?
With a glycemic index of zero, herring does not raise blood sugar. The significant protein and fat content play a crucial role in glucose regulation by slowing down digestion. When eaten as part of a meal, herring helps to blunt the glycemic response of any carbohydrates consumed alongside it. This effect leads to a more gradual rise and fall in blood sugar, preventing the sharp spikes and subsequent crashes that are critical to avoid in gestational diabetes management. Different cooking methods like baking or grilling do not alter its zero-carb nature, making it a consistently safe choice.
What is a safe portion of Fresh Herring for gestational diabetes?
A suitable portion of fresh herring is about the size and thickness of your palm, which corresponds to one medium fillet. This amount provides a robust serving of high-quality protein and omega-3s without contributing excessive calories or fat. This portion size is ideal for anchoring a meal, ensuring you feel full and satisfied while keeping your blood sugar levels stable. It's a perfect centerpiece that allows you to fill the rest of your plate with nutrient-dense vegetables and a small serving of complex carbohydrates for a complete and balanced meal.
How should I combine Fresh Herring to manage blood sugar during pregnancy?
To create a balanced, blood-sugar-friendly meal, pair fresh herring with high-fiber, complex carbohydrates and plenty of non-starchy vegetables. Excellent pairings include a serving of quinoa, a small portion of roasted sweet potato, or a large salad with a light vinaigrette. The protein and fat from the herring will slow the absorption of the carbohydrates, promoting excellent glycemic control. Avoid pairing it with refined starches or sugary sauces, which would negate its blood-sugar-stabilizing benefits. A side of steamed green beans or asparagus with a squeeze of lemon is a perfect complement.
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 →