How many carbs are in fish?
1 small/regular fillet of fish contains about 6g of carbohydrate, 5.7g net carbs after subtracting 0.3g of fiber, 17.4g of protein, and 214 calories.
Carbs by portion size
| Portion | Total carbs | Fiber | Net carbs |
|---|---|---|---|
| 1 cubic inch (17g) | 1.1g | 0.1g | 1.1g |
| 1 oz yields (20g) | 1.3g | 0.1g | 1.3g |
| 1 small/regular fillet (90g) | 6g | 0.3g | 5.7g |
| 1 large fillet (135g) | 9g | 0.4g | 8.6g |
| 1 cup (135g) | 9g | 0.4g | 8.6g |
| 1 whole fish, any size (270g) | 17.9g | 0.8g | 17.1g |
Net carbs in fish
1 small/regular fillet of fish contains 5.7g of net carbs — total carbs (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 fish (per 100g)
- Calories: 238 kcal
- Carbohydrate: 6.6g
- Dietary fiber: 0.3g
- Sugars: 0.1g
- Protein: 19.3g
- Fat: 14.5g
Reference values from USDA FoodData Central (survey fndds dataset, fdcId 2341639). Values are per 100 grams.
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How many carbs are in fish?
1 small/regular fillet of fish contains about 6g of total carbohydrate. After subtracting 0.3g of fiber, the net carbs are about 5.7g.
How many net carbs are in fish?
Net carbs in 1 small/regular fillet of fish are about 5.7g — that is total carbs (6g) minus dietary fiber (0.3g). See our net carbs explainer for the full calculation.
Is fish good for diabetics?
Fish 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 fish keto-friendly?
Whether fish fits a keto plan depends on your daily net-carb budget (typically under 20–30g per day). One serving (1 small/regular fillet) provides about 5.7g of net carbs.