27 kcal P 0.83g C 5.51g F 0.63g
🐟 Finfish and Shellfish Products
Calories in Swordfish
Swordfish possess a specialized muscle that heats their eyes and brain, giving them a thermal advantage when hunting in frigid deep waters.
152 kcal
What makes swordfish so powerful?
Swordfish are among the fastest predators in the ocean, capable of reaching burst speeds that rival some cars on the highway. What truly sets them apart biologically, however, is a specialized thermoregulation system. Located just behind their eyes is a modified eye muscle that acts as a heater. This tissue, known as a rete mirabile, retains heat generated by muscular contractions and warms the fish's brain and eyes by up to 10 to 15 degrees Celsius above the surrounding water temperature. This thermal advantage is crucial because swordfish hunt in dim, frigid depths where squid and other prey reside. By keeping their eyes and brain warm, they maintain acute vision and rapid neurological responses, allowing them to outmaneuver cold-blooded prey in near-freezing waters. The iconic elongated bill, or sword, is not typically used to spear fish. Instead, swordfish slash through schools of prey, stunning or injuring them before circling back to consume the immobilized victims. This combination of a heated sensory system and a blunt-force bill makes them uniquely adapted apex predators of the twilight zone.
Heated brain and eyes
A modified eye muscle warms their brain and eyes, providing superior vision and reaction times in freezing deep waters.
Bill used for slashing
Rather than spearing prey, swordfish use their flat bills to slash and stun schools of fish before eating them.
Lean protein powerhouse
Delivering over 19 grams of protein per 100 grams with virtually zero carbohydrates, swordfish is a dense source of complete amino acids.
💡 When & how to use it
Swordfish has a firm, meaty texture that holds up exceptionally well to grilling and pan-searing. Because it is a large predatory fish, it can accumulate higher levels of mercury, so it is best enjoyed occasionally rather than as a daily staple. When cooking, marinate briefly in olive oil and lemon juice to keep the steaks moist, and avoid overcooking, which can dry out the lean flesh. Pair it with fiber-rich vegetables like grilled asparagus or a tomato salad to balance the meal and aid digestion.
Calories by Serving Size
100g
152 kcal
P 19.2g C 0.45g F 8.12g
200g
304 kcal
P 38.4g C 0.9g F 16.2g
50g
76 kcal
P 9.6g C 0.2g F 4.1g
Full Nutrition Facts
Per 100g — daily values based on a 2,000 calorie diet
Nutrition Facts
Serving size: 100g
Calories 152
% Daily Value*
Total Fat 8.12g 10%
Sodium 56.9mg 2%
Total Carbohydrate 0.45g 0%
Protein 19.2g 38%
Calcium 3.62mg 0%
Iron 0.1mg 1%
Potassium 414mg 9%
* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
How does Swordfish fit your daily goals?
30 min
Walking to burn 152 kcal
8%
of 2,000 kcal daily goal
19.2g
protein (38% of daily 50g)
13
servings until 2,000 kcal
Log Swordfish in CalRay — just snap a photo
CalRay's AI recognizes swordfish and hundreds of thousands of other foods from a photo. No manual lookup needed.
Frequently Asked Questions
How many calories are in Swordfish?
Swordfish contains 152 calories per 100g. It is relatively calorie-dense, so portion control is important.
How much protein does Swordfish have?
Swordfish provides 19.2g of protein per 100g, which is 38% of the 50g daily recommended value. It is a good source of protein.
How many carbs are in Swordfish?
Swordfish contains 0.45g of carbohydrates per 100g .
Is Swordfish good for weight loss?
Swordfish has 152 kcal per 100g, so portions need to be monitored on a weight-loss diet. Use CalRay to track your intake accurately. Its high protein content (19.2g/100g) helps with satiety.
How do I track Swordfish calories accurately?
The easiest way to track swordfish is with CalRay. Simply snap a photo of your meal and the AI will automatically identify the food and calculate calories and macros based on the estimated portion size — no manual lookup required. You can also search by name and adjust gram weight manually.
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