Swordfish is one of the most popular lean protein choices on the grill, but when it comes to dietary fiber, it brings essentially nothing to the table. Like all animal foods, swordfish contains no plant cell walls, and standard nutrition databases list its fiber content as 0 g per 100 g. That means every gram of fiber on your plate has to come from somewhere else in the meal.
This calculator turns that simple fact into a practical meal-planning tool. Enter your swordfish portion size, add an optional vegetable, grain, or legume side, and the tool instantly reports fiber from the fish, fiber from the side, total meal fiber, and the percentage of the 28 g daily value covered.
It is ideal for anyone tracking macros, following a high-protein or low-carb eating plan, or simply trying to eat a more balanced plate. The step-by-step breakdown also shows the math, so you can understand exactly where your fiber is coming from and adjust portions with confidence.
🍽️ Swordfish Portion
🥦 Optional Side Dish
Why Swordfish Contains No Dietary Fiber
Fiber is a type of carbohydrate found only in plant foods — fruits, vegetables, whole grains, legumes, nuts, and seeds. Animal muscle tissue, including swordfish, does not contain fiber because animal cells do not build cell walls out of cellulose. The USDA FoodData Central nutrition profile for raw swordfish lists dietary fiber as 0.0 g per 100 g, and cooked swordfish is effectively identical.
This does not mean a swordfish dinner is unhealthy. It simply means the fiber in that meal must come from the sides and sauces. A plain swordfish fillet with no sides contributes zero grams of fiber, no matter how large the portion. This is why the calculator keeps the fish calculation simple: fiber = (0 g per 100 g) × portion in grams ÷ 100 = 0 g.
One caution: this tool assumes plain swordfish. If your recipe includes a breadcrumb crust, battered coating, or starchy stuffing, those ingredients can add a small amount of fiber, and you should account for them separately.
How to Use This Calculator
- Enter your swordfish portion weight and choose grams, ounces, or pounds.
- Optionally enter a side-dish amount and pick from the dropdown — broccoli, brown rice, quinoa, salad greens, baked potato, black beans, asparagus, or green beans.
- Choose the side unit as grams or ounces. Leave the side amount blank if you want to see the fish alone.
- Click "Calculate Fiber" to see the fish fiber, side fiber, combined total, and the percentage of the 28 g Daily Value.
- Use "Reset" to clear all fields and start a new meal.
The quick-fill buttons provide common portions such as a 6 oz fillet or 8 oz fillet, and common side servings like 100 g of broccoli or half a cup of black beans.
Worked Examples
Example 1 — 6 oz swordfish with 100 g broccoli: A 6 oz fillet is about 170 g. Swordfish fiber = 0 g. Broccoli supplies about 3.3 g of fiber per 100 g, so the side contributes 3.3 g. Total = 0 + 3.3 = 3.3 g, which is about 12% of the 28 g Daily Value.
Example 2 — 8 oz swordfish with half a cup of black beans: Half a cup of cooked black beans is roughly 86 g and provides about 8.7 g of fiber per 100 g, so the beans contribute 86 ÷ 100 × 8.7 = 7.5 g of fiber. The 227 g swordfish fillet still contributes 0 g. Total = 7.5 g, about 27% of the Daily Value.
Example 3 — 150 g plain swordfish with no side: The fish contributes 0 g of fiber. Total meal fiber is 0 g. This shows why a balanced plate matters if your fiber goal is important to you.
How the Fiber Math Works
The general formula used by the tool is:
Fiber (g) = fiber per 100 g of food × weight in grams ÷ 100
For swordfish, the fiber-per-100 g value is 0, so any portion size produces 0 g of fiber. For the optional side, the tool looks up the standard USDA fiber value for the selected food, converts ounces to grams when needed (1 oz = 28.35 g), and applies the same formula. Finally, the total is divided by 28 g and multiplied by 100 to express it as a percentage of the Daily Value.
Pound users: 1 lb = 453.6 g. The unit conversion is handled automatically inside the calculator.
Standard Fiber Reference Table
Values are per 100 g of cooked or raw product as listed, based on USDA FoodData Central profiles.
| Food | Fiber per 100 g |
|---|---|
| Plain swordfish (raw or cooked) | 0.0 g |
| Broccoli, cooked | 3.3 g |
| Brown rice, cooked | 1.8 g |
| Quinoa, cooked | 2.8 g |
| Mixed salad greens, raw | 2.0 g |
| Baked potato with skin | 2.2 g |
| Black beans, cooked | 8.7 g |
| Asparagus, cooked | 2.1 g |
| Green beans, cooked | 3.4 g |
Values are approximate and can vary slightly by variety, season, and preparation method. For the most authoritative data, search a specific food in the USDA FoodData Central database.
Tips for Building a High-Fiber Swordfish Meal
- Treat the fish as your protein centerpiece, not your fiber source. Plan at least one plant food on the plate.
- Choose non-starchy vegetables like broccoli, asparagus, or green beans to keep calories low while adding 2–3 g of fiber per serving.
- Add a legume side such as black beans, lentils, or chickpeas when you need a larger fiber boost; half a cup typically delivers 6–8 g.
- If you use a baked potato, keep the skin on — most of the fiber lives in the peel.
- A simple side salad with olive-oil dressing is an easy way to add 2–4 g of fiber without much prep.
- Track your daily totals. Most adults need 25–35 g of fiber per day; the FDA uses 28 g on Nutrition Facts labels for a 2,000-calorie diet.
Frequently Asked Questions
Does cooking swordfish add fiber? No. Dry-heat cooking methods such as grilling, baking, and broiling do not add or create fiber. Only added ingredients like breadcrumbs, flour, beans, or vegetables can change the fiber content of the final dish.
Are other fish also fiber-free? Yes, essentially all plain fish — tuna, salmon, cod, tilapia, and others — contain no dietary fiber because fiber is exclusive to plants. You can use the same math for other fish; our cod fiber calculator works the same way.
Is 28 g of fiber the right target for everyone? The 28 g Daily Value is based on a 2,000-calorie diet. Individual needs vary with age, sex, and calorie intake. The National Academies recommends roughly 25 g for adult women and 38 g for adult men, with lower targets for older adults.
Should I avoid swordfish for other nutrition reasons? Swordfish is a good source of protein, selenium, and vitamin D, but it is also higher in mercury than many smaller fish. Health agencies generally recommend limiting intake, especially for pregnant women and young children. The FDA fish advice page offers guidance.