Allergen Information
Contains: Fish
Nutrition per 100g
Salt Cod (Bacalao) for Gestational Diabetes
Salt cod, known as bacalhau in Portuguese or bacalao in Spanish, is cod that has been preserved by salting and drying. This ancient preservation method allows the fish to be stored for long periods without refrigeration. Before it can be eaten, the cod must be rehydrated and desalted through a process of soaking in cold water. It has a firm, meaty texture and a distinctively savory flavor that is milder than fresh fish. This ingredient is a cornerstone of many European and Caribbean cuisines, prized for its versatility.
At a glance
Pregnancy safety
SafeBlood sugar impact
lowCarbs / 100 g
0gIs Salt Cod (Bacalao) safe with gestational diabetes?
Salt cod is an excellent source of high-quality, lean protein with zero carbohydrates, making it a theoretically ideal food for blood sugar management. However, its extremely high sodium content presents a significant risk for gestational diabetes management. Elevated sodium can contribute to hypertension and fluid retention, which are common concerns during pregnancy. Therefore, while beneficial for glucose control, it must be consumed with extreme caution and careful preparation to mitigate the risks associated with its salt content.
How does Salt Cod (Bacalao) affect blood sugar during pregnancy?
As a pure protein and fat source, salt cod has a glycemic index of zero and will not cause a direct spike in blood glucose levels. This makes it a very safe choice from a glycemic control perspective. Different cooking methods, such as baking, poaching, or pan-searing, do not alter its carbohydrate content or its negligible impact on blood sugar. The primary focus remains on managing its sodium content rather than its effect on glucose, which is consistently stable and low.
What is a safe portion of Salt Cod (Bacalao) for gestational diabetes?
A safe portion of cooked salt cod is about the size of a deck of cards. This amount provides substantial protein without an overwhelming sodium load, assuming the fish has been thoroughly desalted. To prepare, you must soak it for at least 24-48 hours, changing the water frequently to remove as much salt as possible. Given the risk of elevated blood pressure, it is wise to monitor your readings closely if you choose to include salt cod in your diet.
How should I combine Salt Cod (Bacalao) to manage blood sugar during pregnancy?
To create a balanced, low-glycemic meal, pair salt cod with high-fiber, non-starchy vegetables and a source of healthy fats. A large portion of steamed asparagus, a mixed green salad with an olive oil vinaigrette, or roasted bell peppers can help balance the meal. These pairings add essential nutrients and fiber without contributing to a significant carbohydrate load. Avoid pairing it with other salty ingredients like olives or capers, and choose whole-grain, portion-controlled carbohydrates if needed.
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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