Crayfish — glycemic index and gestational diabetes guide

Allergen Information

Contains: Shellfish

Nutrition per 100g

Calories82 kcal
Carbohydrates0g
of which Sugars0g
Fiber0g
Protein16.8g
Fat1.1g
of which Saturated0.2g
Sodium198mg
Glycemic Index0

ProteinsShellfish

Crayfish for Gestational Diabetes

zero carblean proteinblood sugar friendly

Crayfish, also known as crawfish or crawdads, are freshwater crustaceans resembling small lobsters. They are prized for their sweet, tender tail meat, which has a flavor profile somewhere between shrimp and lobster. Nutritionally, crayfish are an excellent source of high-quality, lean protein and are very low in fat and carbohydrates. They also provide significant amounts of vitamin B12, niacin, and essential minerals like selenium, zinc, and copper. This makes them a nutrient-dense addition to a variety of healthy eating patterns and culinary dishes.

At a glance

Pregnancy safety

Safe

Blood sugar impact

low

Carbs / 100 g

0g

Is Crayfish safe with gestational diabetes?

Crayfish are an exceptional choice for managing gestational diabetes. As a pure protein source, they contain zero carbohydrates and therefore have no direct impact on blood glucose levels. Their high protein content is vital for fetal growth and development without adding unwanted sugars or starches. The primary consideration is the cooking method and accompanying side dishes, as batters, sugary sauces, or high-carb pairings can negate their benefits. When prepared simply, crayfish are a safe and highly recommended food for a GD-friendly diet.

How does Crayfish affect blood sugar during pregnancy?

With a glycemic index of zero, crayfish will not cause a spike in your blood sugar. In fact, their protein content helps to stabilize blood sugar by slowing down the digestion and absorption of any carbohydrates consumed in the same meal. Cooking methods are critical; boiled or steamed crayfish have no glycemic impact. In contrast, battered and fried crayfish or those served in a sweet, sugary sauce would introduce carbohydrates and fat, significantly altering the meal's effect on your glucose levels. Always opt for simple preparations to keep the glycemic load low.

What is a safe portion of Crayfish for gestational diabetes?

A healthy portion of crayfish is about a cup to a cup and a half of peeled tail meat. This visual guide ensures you get a substantial amount of protein to support satiety and stable blood sugar without excessive calories. The main concern with portioning is not the crayfish itself, but the traditional high-carb sides served with them, such as potatoes and large cobs of corn in a crawfish boil. Focus on filling your plate primarily with the crayfish and non-starchy vegetables, treating starchy sides as a small accompaniment.

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

To build a balanced, blood-sugar-friendly meal, pair crayfish with high-fiber, non-starchy vegetables. A large green salad with an olive oil-based vinaigrette, steamed asparagus, or sautéed zucchini are excellent choices. The protein from the crayfish combined with the fiber from the vegetables will promote satiety and ensure a very gentle glucose response. If you include a carbohydrate, choose a small portion of a low-GI option like a quarter-cup of quinoa or a small piece of whole-grain bread. This strategy helps blunt any potential blood sugar rise.

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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