Cod is one of the leanest, most versatile fish you can include in a low-carb or keto meal plan. A plain serving of Atlantic or Pacific cod contains almost zero carbohydrates, so it adds high-quality protein without disrupting your daily carb budget. However, breaded or fried cod can contribute a surprising amount of starch — and that coating is where most of the net carbs come from.
This calculator lets you enter your serving size in grams or ounces, choose a preparation method, and instantly see the net carbs in that portion. Net carbs represent the carbohydrates your body actually absorbs: total carbs minus fiber and sugar alcohols. You can also switch to custom mode for specific brands, recipes, or packaged cod products using values from a nutrition label.
🐟 Cod Net Carbs Calculator
Find net carbs in your cod portion
📊 Results
How to Use This Tool
Enter your serving size, choose grams or ounces, and select how the cod is prepared. Plain raw or cooked cod will show roughly zero net carbs; breaded fillets will show a noticeable carb count. Press Calculate to see total carbs, fiber, sugar alcohols, and net carbs for that portion.
- Type a serving amount in the number field.
- Choose grams or ounces from the unit dropdown.
- Pick a cod type or choose Custom values.
- If using Custom, enter total carbs, fiber, and sugar alcohols per 100 g.
- Click Calculate Net Carbs.
Net Carbs Formula Explained
Net carbs are the carbohydrates that are digested and raise blood glucose. The standard formula is:
Net carbs = total carbohydrates − fiber − sugar alcohols.
Fiber is subtracted because it is not digested; sugar alcohols are subtracted because most are only partially absorbed. This calculator applies that formula per serving by scaling 100 g nutrition values to your portion. For reference data used by the tool, see USDA FoodData Central.
Reference Nutrition Values
| Preparation | Total carbs | Fiber | Net carbs |
|---|---|---|---|
| Atlantic cod, raw | 0 g | 0 g | 0 g |
| Atlantic cod, cooked | 0 g | 0 g | 0 g |
| Pacific cod, raw | 0 g | 0 g | 0 g |
| Pacific cod, cooked | 0 g | 0 g | 0 g |
| Breaded / fried cod | ≈11.2 g | ≈0.7 g | ≈10.5 g |
Values are per 100 g and rounded. Breaded values vary by recipe, coating ratio, and frying method.
Worked Examples
Example 1: A 150 g baked Atlantic cod fillet has 0 g total carbs, 0 g fiber, and no sugar alcohols, so net carbs are 0 g.
Example 2: A 170 g breaded fried cod portion using the tool's preset values gives about 19.0 g total carbs and 1.2 g fiber, so net carbs are roughly 17.8 g.
Example 3: For a custom frozen fish product with 8 g total carbs and 1 g fiber per 100 g, a 170 g serving provides 13.6 g total carbs and 1.7 g fiber, leaving 11.9 g net carbs.
Common Mistakes to Avoid
- Forgetting that coatings, batter, and marinades add carbs to otherwise carb-free cod.
- Using total carbs instead of net carbs when portion sizes are large.
- Entering values per serving on a nutrition label instead of per 100 g in custom mode.
- Assuming brand-name breaded fish values match a generic label; check your package.
Factors Affecting Accuracy
Nutrition data for plain cod is fairly consistent, but breaded and fried products vary widely by brand, coating thickness, and cooking oil. The tool uses approximate values from USDA food composition databases; your actual product may differ by a few grams of carbs per serving.
Custom mode is the most accurate option when you know the label values from the exact package you are using. Be sure to convert everything to per 100 g if your label lists per serving.
Net carbs are a practical estimate used by many low-carb eaters, but individual glycemic responses and sugar alcohol absorption can vary.
Frequently Asked Questions
Is cod keto-friendly?
Yes. Plain raw or cooked cod contains essentially no net carbs, so it fits easily into keto and low-carb diets. Choose baked, grilled, or poached preparations to keep it that way.
Why does breaded cod have so many more net carbs?
The breading is made from flour or breadcrumbs, which are starch-based and quickly add carbohydrates. The amount depends on coating thickness and whether batter is used.
What if my fish has no nutrition label?
Use the closest preparation type from the dropdown, or use Custom values if you have trusted data from a brand, recipe, or USDA FoodData Central.
Does cooking method change net carbs?
Dry-heat cooking like baking, grilling, or broiling does not meaningfully change cod's carb content. Deep frying or adding sauces, honey, or breading does.
If you track multiple foods, also try the general net carb calculator for mixed meals or packaged items.
Additional Resources
- USDA FoodData Central — search specific cod and breaded fish products.
- Dietary Guidelines for Americans — official nutrition guidance.