Boone’s analysis puts Pret A Manger Tuna Melt Bloomer Toastie at 28% of an adult’s daily calories, 86% of the daily salt limit for a child aged 4 to 6 and 0.4 teaspoons of free sugar.
How many calories are in Pret A Manger Tuna Melt Bloomer Toastie? It contains 552 kcal, 23g of fat (7.4g saturated), 1.5g of sugar and 2.6g of salt.
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Nutrition information
Nutrition information: Pret A Manger Tuna Melt Bloomer Toastie
| Energy | 552 kcal |
| Fat | 23g |
| of which saturates | 7.4g |
| Carbohydrate | 50g |
| of which sugars | 1.5g |
| Fibre | 5g |
| Protein | 34g |
| Salt | 2.6g |
Nutrition figures are Pret UK published data per serving as sold, taken from Pret UK's published product pages (pret.co.uk, October 2026). Boone converts the figures to the portion and age comparisons on this page.
Pret A Manger Tuna Melt Bloomer Toastie contains 552 kcal, which is 28% of the 2,000 kcal adult daily reference intake. It provides 23g of total fat, of which 7.4g is saturated, 1.5g of sugar, 2.6g of salt, 34g of protein and 5g of fibre.
The saturated fat content of 7.4g represents 37% of the adult daily guideline of 20g.
Pret publishes figures both per serving and per 100g, which puts the portion at about 218g and 253 kcal per 100g.
Pret describes it as: Generous chunks of pole & line caught tuna with Swedish Greve cheese, red onion and a dab of mayo in our seeded bloomer bread.Ready to be toasted.
Sugar in Pret A Manger Tuna Melt Bloomer Toastie
Pret A Manger Tuna Melt Bloomer Toastie contains 1.5g of free sugar per serving (0.4 teaspoons). Low sugar
The NHS free sugar limit is 30g per day for adults, 24g for children aged 7 to 10, and 19g for children aged 4 to 6. Free sugar excludes the sugars naturally present in milk and whole fruit.
Free sugar by portion: Pret A Manger Tuna Melt Bloomer Toastie
| Portion | Adult (female) 30g | Adult (male) 30g | Age 11 to 17 30g | Age 7 to 10 24g | Age 4 to 6 19g |
|---|
| Per portion | 1.5g 5% | 1.5g 5% | 1.5g 5% | 1.5g 6% | 1.5g 8% |
| Teaspoons | 0.4 tsp |
Boone calculates these percentages from Pret UK's published product pages (pret.co.uk, October 2026) against UK Dietary Reference Values and NHS free sugar and salt limits. Free sugar, salt, calories and saturated fat are limits to stay under; fibre is a target to reach, so a high percentage there is a good thing. For guidance only.
Salt in Pret A Manger Tuna Melt Bloomer Toastie
Pret A Manger Tuna Melt Bloomer Toastie contains 2.6g of salt per serving. High salt
Children have lower salt limits: 3g per day for ages 4 to 6, 5g for ages 7 to 10.
Salt by portion: Pret A Manger Tuna Melt Bloomer Toastie
| Portion | Adult (female) 6g | Adult (male) 6g | Age 11 to 17 6g | Age 7 to 10 5g | Age 4 to 6 3g |
|---|
| Per portion | 2.6g 43% | 2.6g 43% | 2.6g 43% | 2.6g 52% | 2.6g 86% |
Boone calculates these percentages from Pret UK's published product pages (pret.co.uk, October 2026) against UK Dietary Reference Values and NHS free sugar and salt limits. Free sugar, salt, calories and saturated fat are limits to stay under; fibre is a target to reach, so a high percentage there is a good thing. For guidance only.
Calories in Pret A Manger Tuna Melt Bloomer Toastie
Pret A Manger Tuna Melt Bloomer Toastie contains 552 kcal per serving. High calorie share
Daily calorie needs vary by age and sex.
Calories by portion: Pret A Manger Tuna Melt Bloomer Toastie
| Portion | Adult (female) 2000 kcal | Adult (male) 2500 kcal | Age 11 to 17 1936 kcal | Age 7 to 10 1553 kcal | Age 4 to 6 1291 kcal |
|---|
| Per portion | 552 kcal 28% | 552 kcal 22% | 552 kcal 29% | 552 kcal 36% | 552 kcal 43% |
Boone calculates these percentages from Pret UK's published product pages (pret.co.uk, October 2026) against UK Dietary Reference Values and NHS free sugar and salt limits. Free sugar, salt, calories and saturated fat are limits to stay under; fibre is a target to reach, so a high percentage there is a good thing. For guidance only.
Saturated fat in Pret A Manger Tuna Melt Bloomer Toastie
Pret A Manger Tuna Melt Bloomer Toastie contains 7.4g of saturated fat per serving. High saturated fat
The saturated fat guideline is 20g a day for women and 30g for men, and lower again for children.
Saturated fat by portion: Pret A Manger Tuna Melt Bloomer Toastie
| Portion | Adult (female) 20g | Adult (male) 30g | Age 11 to 17 20g | Age 7 to 10 18g | Age 4 to 6 16g |
|---|
| Per portion | 7.4g 37% | 7.4g 25% | 7.4g 37% | 7.4g 41% | 7.4g 46% |
Boone calculates these percentages from Pret UK's published product pages (pret.co.uk, October 2026) against UK Dietary Reference Values and NHS free sugar and salt limits. Free sugar, salt, calories and saturated fat are limits to stay under; fibre is a target to reach, so a high percentage there is a good thing. For guidance only.
Fibre in Pret A Manger Tuna Melt Bloomer Toastie
Pret A Manger Tuna Melt Bloomer Toastie contains 5g of fibre per serving. Source of fibre
Fibre is the one figure here that is a target to reach rather than a limit to stay under. UK guidance is 30g a day for adults, 25g for ages 11 to 17, 20g for ages 7 to 10 and 15g for ages 4 to 6.
Fibre by portion: Pret A Manger Tuna Melt Bloomer Toastie
| Portion | Adult (female) 30g | Adult (male) 30g | Age 11 to 17 25g | Age 7 to 10 20g | Age 4 to 6 15g |
|---|
| Per portion | 5g 17% | 5g 17% | 5g 20% | 5g 25% | 5g 33% |
Boone calculates these percentages from Pret UK's published product pages (pret.co.uk, October 2026) against UK Dietary Reference Values and NHS free sugar and salt limits. Free sugar, salt, calories and saturated fat are limits to stay under; fibre is a target to reach, so a high percentage there is a good thing. For guidance only.
Ultra-processed food: what is really in it
Processing and additives: Pret A Manger Tuna Melt Bloomer Toastie
Reading the ingredient list, Pret A Manger Tuna Melt Bloomer Toastie contains none of the additives Boone treats as markers of ultra-processing.
Boone classifies Pret A Manger Tuna Melt Bloomer Toastie as NOVA group 3, processed, based on Pret’s published ingredient list. NOVA groups foods by how far they are from their whole-food form, not by how nutritious they are. A group 4 food is not automatically unhealthy, and a group 1 food is not automatically healthy.
Pret A Manger Tuna Melt Bloomer Toastie contains at least 30 distinct ingredients: 25 raw and 5 manufactured. Raw means something you could buy and cook with at home; manufactured means a substance that only exists as an output of industrial processing.
Ingredient count: Pret A Manger Tuna Melt Bloomer Toastie
The 5 manufactured ingredients
calcium carbonate, iron, niacin, thiamin, concentrated lemon juice.
The 25 raw ingredients
wheat flour, water, malted wheat flakes, rye flour, poppy seeds, sunflower seeds, yeast, millet, salt, wheat gluten, brown linseed, malted barley flour, cracked wheat, wheat bran, flour treatment agent, pole and line caught tuna, grevé cheese, rapeseed oil, free range egg yolk, spirit vinegar, cornflour, sugar, red onion, sea salt, black pepper.
Boone counts every distinct ingredient named in Pret’s published list, including those inside components such as bread or sauces, and removes duplicates, so salt appearing in several components counts once. Where an additive class is followed by a named substance, the substance is counted. Every figure here is a minimum.
Allergens at a glance
Pret A Manger Tuna Melt Bloomer Toastie contains cereals containing gluten, eggs, fish and milk.
Allergen information: Pret A Manger Tuna Melt Bloomer Toastie
| Allergen | Status |
|---|
| Cereals containing gluten | Contains |
| Crustaceans | Not declared |
| Eggs | Contains |
| Fish | Contains |
| Peanuts | Not declared |
| Soya | Not declared |
| Milk | Contains |
| Tree nuts | Not declared |
| Celery | Not declared |
| Mustard | Not declared |
| Sesame | Not declared |
| Sulphites | Not declared |
| Lupin | Not declared |
| Molluscs | Not declared |
Contains = declared by Pret on the product page. Not declared = not listed as an ingredient allergen; Pret prepares food in shops where all 14 allergens are handled, so it cannot guarantee any item is free from them. Source: Pret UK product pages and allergen guide (8 September 2026).