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A whole Atlantic mackerel lies with its slender, tapered body covered in reflective silver scales, a blue-green back marked by dark wavy stripes, a pale belly, and a deeply forked tail.
●Low GI
★Natural
⚡High Potassium

Atlantic mackerel Calories

Rich in omega-3, high protein, excellent source of B12

In season: Spring · Summer · Autumn · Winter

CALORIES · 100 G

205kcal

GI

0low

POTASSIUM · 100 G

390mg

FIBER · 100 G

0g

Quick answer

1 piece (medium) of Atlantic mackerel (120 g) has 246 calories. That works out to 205 calories per 100 g. It contains 0 g of carbs, 22.8 g of protein, 16.7 g of fat and 0 g of fiber. Its 22.8 µg of B12 covers 950% of the Daily Value. Its glycemic index is 0 (low), so it raises blood sugar slowly.

Atlantic mackerel Nutrition Facts

Selected: 1 piece (medium) · 120 g

246

KCAL / 120G

Carbs

0g

· 0% DV

Protein

22.8g

· 46% DV

Fat

16.7g

· 21% DV

Fiber

0g

· 0% DV

DV is the share of the daily value covered, on a 2,000 kcal reference diet.

Calories come from: Carbs 0% · Protein 38% · Fat 62%

Atlantic mackerel nutrition facts table · 1 piece (medium) (120 g)

NutrientAmount% DV
Calories246 kcal
Total fat16.7 g21%
Saturated fat3.96 g20%
Trans fat0 g
Sodium108 mg5%
Total carbohydrate0 g0%
Fiber0 g0%
Protein22.8 g46%

Calories: Calories measure energy. Average daily need is 2,000 kcal. Excess calories are stored as fat, too few cause weight loss.

Carbs: Your body's primary energy source. The brain runs exclusively on carbs. Daily need: 275g.

Protein: Essential for muscle repair and cell growth. Daily need: 50g. Keeps you full and boosts metabolism.

Fat: Needed for hormone production and vitamin absorption. Daily need: 78g. Limit saturated fats, choose unsaturated.

Fiber: Critical for digestive health and satiety. Daily need: 28g. Stabilizes blood sugar, lowers cholesterol.

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How Many Calories in 1 Medium Atlantic mackerel?

ServingAmountCalories
1 piece (medium)120 g246 kcal
1 piece (small)80 g164 kcal
100 g100 g205 kcal
1 serving (medium)100 g205 kcal
1 can (medium)115 g236 kcal
1 serving (large)150 g308 kcal
1 can (large)170 g349 kcal
1 piece (large)180 g369 kcal
1 piece (extra large)250 g513 kcal

Calculated from 205 calories per 100 g.

Frequently Asked Questions About Atlantic mackerel

Is kolyoz the same as Atlantic mackerel?

No. Kolyoz is chub mackerel, a different species from Atlantic mackerel; the two names are sometimes confused. Both are oily mackerels and can work in similar recipes, but they are not interchangeable names for the same fish.

How do you cook kolyoz?

Kolyoz works well grilled, baked, or pan-fried because its oily flesh stays flavorful during cooking. Pat it dry first and avoid overcooking, which can make the meat dry. Lemon, herbs, and a little salt are simple seasonings that suit it.

Does kolyoz have a lot of bones?

Kolyoz has a central backbone and smaller pin bones, so it is not a boneless fish. Remove the backbone after cooking or ask the fishmonger to fillet it; check each portion carefully before serving it to a child.

What does kolyoz taste like?

Kolyoz has a rich, savory taste and firmer, darker flesh than many mild white fish. Its flavor is strongest when fresh, and grilling or baking with lemon can complement it without masking the fish.

Is kolyoz a good source of omega-3?

Yes, kolyoz is an oily fish and a source of omega-3 fats, as well as protein and vitamin B12. Baking or grilling it keeps preparation simple; the amount of added oil depends on how you cook it.

Can you eat kolyoz raw?

Kolyoz should not be eaten raw unless it has been handled and prepared specifically for raw consumption. Freezing at home does not guarantee that parasites or harmful bacteria are eliminated, so cooking it thoroughly is the safer choice.

How should you store cooked kolyoz?

Refrigerate cooked kolyoz promptly in a covered container and keep it separate from raw seafood. Eat it within a few days, and discard it if it has been left at room temperature for too long or develops an unusual smell.

Can you freeze kolyoz?

Yes, you can freeze kolyoz after cleaning and drying it. Wrap it tightly to limit air exposure, thaw it in the refrigerator, and cook it soon after thawing; do not refreeze it raw once thawed.

Is kolyoz high in mercury?

Kolyoz contains some mercury, but it is not the same fish as high-mercury king mackerel. Mercury varies among fish and with fish size, so pregnant people should follow current local seafood guidance when choosing how often to eat it.

How can you tell if kolyoz is fresh?

Fresh kolyoz should have clear, bright eyes, firm flesh, and a clean sea-like smell. Avoid fish with a sour or ammonia-like odor, cloudy eyes, or a slimy surface, and keep it cold from purchase through preparation.

Atlantic mackerel Vitamins & Minerals

Vitamins

B12

22.8µg · 950% DV

Vitamin D

19.2µg · 96% DV

B3

9.12mg · 57% DV

B2

0.43mg · 33% DV

Minerals

Selenium

43µg · 78% DV

Phosphorus

336mg · 48% DV

Iodine

48µg · 32% DV

Magnesium

72mg · 17% DV

Potassium ⭐

468mg · 14% DV

Sodium

108mg · 5% DV

Atlantic mackerel Glycemic Index

GLYCEMIC INDEX

0
Low
0 Low5570100

GLYCEMIC LOAD

0
Low

Accounts for portion size — a more realistic measure than GI alone.

How to Burn Off Atlantic mackerel

To burn the 246 calories in 1 piece (medium) (120 g):

🚶

61min

Walking (5 km/h)

🏃

25min

Running (8 km/h)

🚴

33min

Cycling

🏊

29min

Swimming

Times are calculated with the MET equation for a 70 kg adult. Actual burn varies with your weight, age and pace.

What is Atlantic mackerel?

Kolyoz, often called chub mackerel, is a close relative of mackerel found in the Mediterranean and nearby waters. Its rich, oily flesh has a pronounced savoury flavour and stays tender when cooked; pan-frying gives it a crisp exterior, while grilling brings out a smoky edge. In Turkey and across the Mediterranean, it is commonly served as a main dish with lemon and salad, or alongside greens and other simple sides.

Kolyoz is high in protein and provides omega-3 fats, with no carbohydrates. For a lighter meal, bake or grill it rather than frying, and pair it with vegetables.

How Nutritious Is Atlantic mackerel?

Nutrient density

Very high

88/ 100

How many vitamins, minerals and how much fiber this food carries per calorie. A high score means a lot of nutrition for few calories.

Satiety score

Medium

48/ 100

An EatBetter score computed from fiber, protein and calorie density. A high score means staying full longer on the same calories.

Both scores are calculated per 100 g and do not change with the selected portion. The satiety score is EatBetter's own calculation, not a clinical measure.

Is Atlantic mackerel Processed?

NOVA 1

Unprocessed

1. Unprocessed

2. Minimally Processed

3. Processed

4. Ultra-Processed

NOVA classifies foods into 4 groups by industrial processing. NOVA 1 (unprocessed) is the healthiest.

Does Atlantic mackerel Contain Allergens?

Contains these allergens:

Gluten free
Dairy free
Eggs free
Peanuts free
Tree nuts free
Fish yes
Soy free
Sesame free

Which Diets Is Atlantic mackerel Good For?

Vegan

— Not suitable

Vegetarian

— Not suitable

Gluten-Free

✓ Suitable

Dairy-Free

— Not suitable

Mediterranean

✓ Suitable

Paleo

✓ Suitable

Whole30

— Not suitable

DASH

— Not suitable

Keto

✓ Suitable

Low FODMAP

— Not suitable

Atlantic mackerel Fat Profile

SATURATED

3.96g

MONOUNSATURATED

6.12g

POLYUNSATURATED

3.84g

⚖️

Omega 6:3 ratio 0.1:1

Below the ideal 4:1 — a good omega balance.

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Nutrition data compiled from USDA FoodData Central and scientific sources.