Families comparing fat figures
If fish is the centre of dinner and reducing fat is the priority, compare plain white-fish fillets and loins with coated products using the fat value per 100g. Check the preparation basis shown beside each figure.
Who is this choice for?
Households planning a freezer meal
A frozen pack can fit a planned family dinner, but cooking methods differ. Check whether the exact product needs defrosting before you rely on it for a meal straight from the freezer.
Families weighing fish type against total fat
Plain white fish and oily fish need not serve the same buying priority. If you are considering salmon for its omega-3 content, compare its own nutrition panel rather than treating it as a substitute for the lowest-fat white-fish option.
What should you check before buying?
Plain white fish
Choose when: Reducing total fat is the main consideration for the fish portion of dinner.
Allow for: Adding your own flavour and checking whether the pack calls for defrosting before cooking.
Oily fish
Choose when: Including an oily-fish meal matters more than selecting the lowest total-fat fish.
Bear in mind: An omega-3 description does not tell you that a product has less total fat than plain white fish.
Coated fish
Choose when: A battered or breaded format matters more to the meal than minimising its fat figure.
Check carefully: The coating changes the ingredients and may change the nutrition and allergen information.
| Priority | What to check | Your needs |
|---|---|---|
| Total fat | Compare fat per 100g and note whether the value is for the product as sold or prepared as directed. ASDA lists 0.8g per 100g prepared as directed for its Atlantic cod loins; M&S lists 10g per 100g for its Battered Cod. | I want the fish portion of dinner to have a lower stated fat figure, so I will compare the exact packs rather than assume every frozen fillet is alike. |
| Fish type | Distinguish plain white fish from oily fish and check the nutrition panel of the product you are considering. The NHS discusses oily fish separately in its fish guidance. | If including oily fish is my priority, I would choose on that basis rather than assume it is also the lowest-fat option. |
| Preparation | Read the pack’s frozen-cooking or defrosting instructions, cooking method and storage directions. Do not transfer instructions from one fish product to another. | For a dinner with little preparation time, I need to know whether this particular pack can go into the oven from frozen. |
| Ingredients and bones | Check the full ingredient and allergen statements, especially for coatings and seasonings. Follow any warning that bones may remain, even on a fillet. | With several people sharing the meal, I need a pack whose ingredients and handling instructions work for everyone eating it. |
Common buying mistakes
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Assuming every frozen fish fillet has a similar fat figure
The format matters. M&S lists 1.2g fat per 100g for its British hake fillets and 10g per 100g for its Battered Cod; those figures describe different products, not frozen fish as a whole.
When reducing fat is the aim, compare the total-fat values per 100g on the packs you are choosing between, including their stated preparation basis.
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Reading an omega-3 description as a lower-fat claim
Omega-3 information and total fat answer different questions. Sainsbury’s lists 12.7g fat per 100g oven baked for Young’s Chip Shop Omega 3 Fish Fillets.
Decide whether you are choosing for an oily-fish meal or comparing total-fat figures, then read the relevant nutrition panel.
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Overlooking what the coating contains
Batter or breadcrumbs add ingredients beyond fish. The allergen statement for a coated product therefore needs its own check, even if the household has eaten plain fish before.
Read the ingredient and allergen information on the exact pack before serving anyone with an allergy.
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Assuming all frozen fish cooks the same way
A dinner planned around cooking straight from frozen may need a different pack from one that requires defrosting. The cooking method also affects which nutrition figure is relevant to your comparison.
Check the pack’s cooking, defrosting and storage directions before choosing it for a particular evening.
Brand and retailer references
A brand or retailer name cannot establish a fish product’s fat figure: compare the particular plain, seasoned or coated pack.
ASDA
ASDA’s listed Atlantic cod loins provide a plain-fish point of comparison.
- ASDA Groceries lists its Exceptional by ASDA Atlantic Cod Loins as 100% cod, with 0.8g fat per 100g prepared as directed.
- The listing says the raw fish must be fully cooked. Check the pack’s cooking instructions before planning the meal.
M&S
M&S listings include both plain white-fish fillets and battered cod, making the product format important.
- M&S Food lists 1.2g fat per 100g for both its British Hake Fillets and Wild Icelandic Cod Fillets.
- Its Battered Cod lists 10g fat per 100g. Check the individual pack rather than applying the plain-fish figures to other M&S products.
Birds Eye
Birds Eye appears in the coated-fish options relevant to a family dinner.
- The Birds Eye 4 Battered Fish Fillets listing at Tesco describes formed Alaska pollock fillets in batter.
- Tesco Groceries lists 13g fat per 100g for that product; its coating and allergen information need checking on the current pack.
Young’s
Young’s describes natural frozen fish fillets as well as coated fish products.
- Young’s Seafood lists natural cod, haddock, salmon and white-fish fillet options that it says can cook from frozen.
- Sainsbury’s lists 12.7g fat per 100g oven baked for Young’s Chip Shop Omega 3 Fish Fillets. The omega-3 wording does not replace a total-fat check.
Tesco
Tesco’s Birds Eye battered-fillet listing illustrates the information to check for a specific coated product.
- Tesco Groceries gives a per-100g nutrition panel for Birds Eye 4 Battered Fish Fillets.
- That branded product’s figures do not describe Tesco’s other frozen fish; check each product and pack separately.
Sainsbury’s
Sainsbury’s lists Young’s coated fish with product-specific nutrition information.
- Its listing for Young’s Chip Shop Omega 3 Fish Fillets gives a per-100g oven-baked fat figure and cooking information.
- That listing describes a Young’s product, not the nutrition of Sainsbury’s other frozen fish.
Frozen fish options on Joybuy
These fish fillets offer options for a fish-centred family dinner, including pangasius, tilapia and a seasoned snakehead product. Compare each pack’s fat figure and cooking directions before deciding whether it fits a reduced-fat or freezer-to-oven meal.
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Asian Star White Pangasius Fillet, 1kg (800g net)
For a family dinner built around fish you season yourself, compare the pack’s fat and salt figures per 100g. The product name specifies a 1kg pack with 800g net; check its cooking instructions if you need to cook straight from frozen.
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Ocean Classic Pangasius Fillets, IQF 170/200g, 1kg (800g net)
The skinless and boneless fillets are an option for a fish-centred dinner when there is time to prepare the pack as directed. The product name specifies IQF 170/200g and 800g net; check the defrosting and cooking directions before planning the meal.
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Ocean Classic Tilapia IQF Fillets, 1kg (800g net)
These tilapia fillets provide another fish option to assess for a shared dinner. The product name specifies an 800g net quantity; compare the current fat figure per 100g and follow the pack’s defrosting and cooking directions.
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DingDingFresh Snakehead Fish Fillets 250 g
These seasoned fillets offer a different option from plain fish for a family dish. Compare their fat, salt and ingredient information with an unseasoned pack, and confirm the cooking directions and quantity on the pack.
Frequently asked questions
Which frozen fish should I compare first if reducing fat matters?
Start with plain, uncoated white-fish fillets or loins and compare total fat per 100g on the current packs. ASDA Groceries lists 0.8g per 100g prepared as directed for its Atlantic cod loins, while M&S Food lists 1.2g per 100g for its British hake fillets; the preparation basis matters when comparing figures.
Does omega-3 wording mean a fish product has less fat?
No. Omega-3 information does not tell you the product’s total-fat value. For example, Sainsbury’s lists 12.7g fat per 100g oven baked for Young’s Chip Shop Omega 3 Fish Fillets, so read the nutrition panel if reducing total fat is the priority.
Can I cook any frozen fish straight from the freezer?
Follow the directions for the exact pack rather than assuming every frozen fillet uses the same method. Check whether it calls for defrosting, which cooking methods it specifies and how it should be stored after thawing before relying on it for a quick dinner.
What should I check when serving battered fish to a family?
Check the exact product’s fish, coating ingredients and full allergen statement, as well as its cooking directions. A battered product has ingredients beyond the fish itself, and its allergen information should not be inferred from a plain fillet.