Shoppers with strict gluten-free requirements
You’re looking for an explicit statement about the exact tin you’re buying, rather than trying to work out its status from the ingredients alone.
For a strict gluten-free shop, first choose mackerel with an explicit ‘gluten-free’ statement or confirmation for the exact product. A short ingredients list isn’t enough. Then compare the ‘of which sugars’ figures per 100 g on the same basis. A low or zero figure doesn’t, on its own, prove that a product is ‘reduced in sugars’.
You’re looking for an explicit statement about the exact tin you’re buying, rather than trying to work out its status from the ingredients alone.
You compare the ‘of which sugars’ figure per 100 g and distinguish this amount from the comparative claim ‘reduced in sugars’.
You’re choosing between plain mackerel and seasoned recipes, while checking the ingredients, allergens and storage instructions once opened.
When choosing mackerel as part of a gluten-free shop, first check the status of the exact product, then compare its sugar content and recipe.
| Criterion | What to check | Who it matters to |
|---|---|---|
| Gluten-free confirmation | Look for a ‘gluten-free’ statement or confirmation from the manufacturer for the exact product; check the allergens too. | If I need to avoid gluten strictly, I want confirmation that applies to the tin I’ve chosen. Around 50% of shoppers concerned would prioritise this confirmation. |
| Sugar content | Compare the ‘of which sugars’ figures per 100 g, distinguishing between the product as sold and the drained product when both values appear on the label. | To limit sugar in my choice, I need to compare figures based on the same measure. Around 33% of shoppers concerned would prioritise this amount. |
| Recipe and use | Check the ingredients, pack size and storage instructions once opened. | If I switch between plain mackerel and mackerel in sauce, I want a recipe that suits my meal and can be stored as directed once opened. Around 17% of shoppers concerned would put this first. |
Petit Navire product information lists 0 g of sugars per 100 g for its plain fillets, 0.9 g for its escabeche recipe and 2.2 g for its Catalan recipe. Auchan’s product information for Saupiquet natural fillets displays a ‘gluten-free’ statement and less than 0.5 g of sugars per 100 g. These figures help you compare recipes, but they don’t confirm the gluten-free status of other products.
A recipe that doesn’t list any cereals doesn’t, on its own, confirm that the finished product is gluten-free.
If you need to avoid gluten strictly, check the statement on the packaging for the exact product or ask the manufacturer to confirm.
The ‘of which sugars’ figure shows an absolute amount. ‘Reduced in sugars’ is a regulated comparative claim against a similar product, not simply a low figure taken on its own.
When choosing between two tins, compare their figures per 100 g on the same basis. Only rely on a comparative claim if it’s substantiated for the product.
A figure calculated after draining doesn’t represent the same amount of sauce or liquid as a figure for the whole product.
Check the heading for each nutrition column before comparing two recipes per 100 g.
Plain mackerel fillets and recipes in sauce make it easy to compare sugar content across the brand’s products.
The natural fillets listed by Auchan have both a gluten-free statement and sugar information available on their product page.
Carrefour offers Carrefour Extra mackerel in plain, tomato, mustard and escabeche recipes.
The retailer’s product pages can help you check the ingredients and nutritional information for a specific product.
No. This ingredients list doesn’t, on its own, confirm that the finished product is gluten-free. If you need to avoid gluten strictly, look for a ‘gluten-free’ statement on the exact product or confirmation from the manufacturer.
No. ‘No added sugars’, the ‘of which sugars’ figure and the comparative claim ‘reduced in sugars’ don’t mean the same thing. According to DGCCRF guidance, the latter requires, among other things, a documented comparison with a similar product; a low figure per 100 g isn’t enough.
Check the ingredients and allergens for the exact recipe, then look for a gluten-free statement if it’s essential to your purchase. A sauce may contain ingredients that aren’t in the plain version, and its name alone doesn’t tell you anything conclusive about allergens or sugars.
Follow the instructions on the tin you’ve bought. The Saupiquet product pages consulted recommend keeping the fillets in the fridge and eating them within two days of opening. Check the instructions for any other product.