How many carbs are in shellfish?
1 cup of shellfish contains about 6.6g of carbohydrate, 6.3g net carbs after subtracting 0.3g of fiber, 20.9g of protein, and 197 calories.
Carbs by portion size
| Portion | Total carbs | Fiber | Net carbs |
|---|---|---|---|
| 1 cup (135g) | 6.6g | 0.3g | 6.3g |
| 100 grams (100g) | 4.9g | 0.2g | 4.7g |
Net carbs in shellfish
1 cup of shellfish contains 6.3g of net carbs — total carbs (6.6g) minus dietary fiber (0.3g). Net carbs are the carbs your body actually digests and that raise blood glucose. See our guide to net carbs for how this calculation works and when to use it.
Full nutrition for shellfish (per 100g)
- Calories: 146 kcal
- Carbohydrate: 4.9g
- Dietary fiber: 0.2g
- Sugars: 0.1g
- Protein: 15.5g
- Fat: 6.7g
Reference values from USDA FoodData Central (survey fndds dataset, fdcId 2341751). Values are per 100 grams.
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How many carbs are in shellfish?
1 cup of shellfish contains about 6.6g of total carbohydrate. After subtracting 0.3g of fiber, the net carbs are about 6.3g.
How many net carbs are in shellfish?
Net carbs in 1 cup of shellfish are about 6.3g — that is total carbs (6.6g) minus dietary fiber (0.3g). See our net carbs explainer for the full calculation.
Is shellfish good for diabetics?
Shellfish contains carbohydrates that will raise blood glucose. Whether it fits your meal plan depends on the portion and your overall daily target. Most U.S. diabetes care teams use total carbs (not net) for insulin dosing — see our diabetes carb-counting guide.
Is shellfish keto-friendly?
Whether shellfish fits a keto plan depends on your daily net-carb budget (typically under 20–30g per day). One serving (1 cup) provides about 6.3g of net carbs.