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High-protein, low-carb fish rich in selenium and B12
CALORIES · 100 G
GI
POTASSIUM · 100 G
FIBER · 100 G
1 piece (medium) of Roasted grouper (170 g) has 201 calories. That works out to 118 calories per 100 g. It contains 0 g of carbs, 42.2 g of protein, 2.7 g of fat and 0 g of fiber. Its 3.2 µg of B12 covers 135% of the Daily Value. Its glycemic index is 0 (low), so it raises blood sugar slowly.
Selected: 1 piece (medium) · 170 g
201
KCAL / 170G
Carbs
0g
· 0% DV
Protein
42.2g
· 84% DV
Fat
2.7g
· 3% 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 87% · Fat 13%
| Nutrient | Amount | % DV |
|---|---|---|
| Calories | 201 kcal | |
| Total fat | 2.7 g | 3% |
| Saturated fat | 0.68 g | 3% |
| Trans fat | 0 g | |
| Sodium | 90 mg | 4% |
| Total carbohydrate | 0 g | 0% |
| Fiber | 0 g | 0% |
| Protein | 42.2 g | 84% |
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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| Serving | Amount | Calories |
|---|---|---|
| 1 piece (medium) | 170 g | 201 kcal |
| 1 ounce (mini) | 28 g | 33 kcal |
| ½ piece (half) | 85 g | 100 kcal |
| 100 g | 100 g | 118 kcal |
| 1 piece (small) | 120 g | 142 kcal |
| 1 cup (chopped) | 140 g | 165 kcal |
| 1 serving (medium) | 150 g | 177 kcal |
| 1 serving (large) | 220 g | 260 kcal |
| 1 piece (large) | 240 g | 283 kcal |
Calculated from 118 calories per 100 g.
Roasted grouper has mild, slightly sweet flavor and firm, white flakes. Its texture holds together well in the oven, so it works with simple seasoning such as lemon, herbs, and olive oil without being overwhelmed.
Roast grouper just until the flesh turns opaque and separates easily with a fork. A little oil or butter and a covered baking dish can help retain moisture; check thick and thin parts separately because they cook at different rates.
Roasted grouper has a central backbone and rib bones when cooked whole, but its flesh is generally easy to lift away in large flakes. Check each serving carefully for smaller bones, especially before serving it to children.
Roasted grouper pairs well with roasted vegetables, potatoes, rice, or a crisp salad. A bright lemon dressing or salsa also balances the fish’s mild flavor without masking it.
Yes, you can eat roasted grouper skin if it has been properly cleaned and cooked through. It may turn pleasantly crisp in the oven, though the skin can remain soft if the fish is baked covered or with plenty of liquid.
Roasted grouper is done when the thickest part is opaque and flakes apart with gentle pressure from a fork. If the center still looks translucent, cook it a little longer; overcooking makes the firm flesh dry.
You can roast grouper whole or use fillets. A whole fish makes an impressive centerpiece and can stay moist, while fillets are easier to portion and serve; choose pieces of similar thickness for more even cooking.
Grouper can contain more mercury than smaller, short-lived fish, and levels vary by species and size. People who are pregnant, nursing, or feeding young children should follow current local seafood advisories for grouper.
Roasted grouper keeps for about three to four days in a refrigerator kept at 40°F (4°C) or colder. Refrigerate it promptly in a covered container, and reheat only the portion you plan to eat.
Yes, leftover roasted grouper can be frozen in an airtight, freezer-safe container, though its texture may be less moist after thawing. Defrost it in the refrigerator and reheat gently until hot throughout.
Vitamins
B12
3.23µg · 135% DV
B3
5.78mg · 36% DV
B6
0.54mg · 32% DV
B5
1.27mg · 25% DV
Minerals
Selenium
61µg · 111% DV
Phosphorus
357mg · 51% DV
Iodine
60µg · 40% DV
Potassium ⭐
646mg · 19% DV
Sodium
90mg · 4% DV
GLYCEMIC INDEX
GLYCEMIC LOAD
Accounts for portion size — a more realistic measure than GI alone.
To burn the 201 calories in 1 piece (medium) (170 g):
🚶
Walking (5 km/h)
🏃
Running (8 km/h)
🚴
Cycling
🏊
Swimming
Times are calculated with the MET equation for a 70 kg adult. Actual burn varies with your weight, age and pace.
Roasted grouper is a simple fish dish made by cooking grouper in the oven, either whole or as fillets. The firm-fleshed fish is found in warm seas, and oven-roasting with olive oil, lemon and herbs is a familiar approach in Mediterranean and other coastal cooking.
Its mild flavour and moist, substantial texture pair well with roasted vegetables, potatoes or a crisp salad. Serve it as a main course with lemon and fresh herbs; in many English-speaking kitchens, it also works well with rice or grains. Roasted grouper is naturally high in protein and contains no carbohydrates; a 100 g portion provides 24.8 g of protein. For a lighter plate, use a modest amount of oil and serve it with plenty of vegetables.
High
How many vitamins, minerals and how much fiber this food carries per calorie. A high score means a lot of nutrition for few calories.
Medium
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.
NOVA 2
Minimally Processed
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.
Contains these allergens:
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
SATURATED
0.68g
MONOUNSATURATED
0.77g
POLYUNSATURATED
0.56g
Omega 6:3 ratio 0.2:1
Below the ideal 4:1 — a good omega balance.
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Nutrition data compiled from USDA FoodData Central and scientific sources.