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Pret A Manger Tuna Melt Bloomer Toastie: calories and sugar by portion, age and sex

Pret A Manger Tuna Melt Bloomer Toastie, tuna and melted cheese bloomer toastie on a white plate, nutrition and calories

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

Energy552 kcal
Fat23g
of which saturates7.4g
Carbohydrate50g
of which sugars1.5g
Fibre5g
Protein34g
Salt2.6g

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

PortionAdult (female)
30g
Adult (male)
30g
Age 11 to 17
30g
Age 7 to 10
24g
Age 4 to 6
19g
Per portion1.5g
5%
1.5g
5%
1.5g
5%
1.5g
6%
1.5g
8%
Teaspoons0.4 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

PortionAdult (female)
6g
Adult (male)
6g
Age 11 to 17
6g
Age 7 to 10
5g
Age 4 to 6
3g
Per portion2.6g
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

PortionAdult (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 portion552 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

PortionAdult (female)
20g
Adult (male)
30g
Age 11 to 17
20g
Age 7 to 10
18g
Age 4 to 6
16g
Per portion7.4g
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

PortionAdult (female)
30g
Adult (male)
30g
Age 11 to 17
25g
Age 7 to 10
20g
Age 4 to 6
15g
Per portion5g
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.

Free sugar vs total sugar

Where the sugar comes from: Pret A Manger Tuna Melt Bloomer Toastie

Boone counts all 1.5g as free sugar, or 0.4 teaspoons. Pret publishes total sugar only, so Boone does not deduct any naturally occurring sugar from milk, fruit or vegetables, which makes this a ceiling.

Sugar sources named in the ingredient list: sugar.

NHS daily free sugar limits: 30g for adults and children 11+, 24g age 7 to 10, 19g age 4 to 6.

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.

Ingredients

Ingredients: Pret A Manger Tuna Melt Bloomer Toastie

Seeded Bloomer Bread (Wheat Flour (Wheat Flour (Wheat), Calcium Carbonate, Iron, Niacin, Thiamin), Water, Malted Wheat Flakes (Wheat), Rye Flour (Rye), Poppy Seeds, Sunflower Seeds, Yeast, Millet, Salt, Wheat Gluten (Wheat), Oats (Oats), Brown Linseed, Malted Barley Flour (Barley), Cracked Wheat (Wheat), Wheat Bran (Wheat), flour treatment agent (Ascorbic Acid)), Pole and Line Caught Tuna (Fish) (28%), Grevé Cheese (Milk) (17%), Mayonnaise (Rapeseed Oil, Water, Free Range Egg Yolk (Egg), Spirit Vinegar, Cornflour, Sugar, Salt, Concentrated Lemon Juice), Red Onion, Seasoning (Sea Salt, Black Pepper, Rapeseed Oil).

Ingredients as published on Pret UK's published product pages (pret.co.uk, October 2026). Allergens are shown in bold. Recipes change, so always check in shop before ordering if you have an allergy.

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

AllergenStatus
Cereals containing glutenContains
CrustaceansNot declared
EggsContains
FishContains
PeanutsNot declared
SoyaNot declared
MilkContains
Tree nutsNot declared
CeleryNot declared
MustardNot declared
SesameNot declared
SulphitesNot declared
LupinNot declared
MolluscsNot 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).

Frequently asked questions

How many calories are in Pret A Manger Tuna Melt Bloomer Toastie?+

Boone calculates that Pret A Manger Tuna Melt Bloomer Toastie contains 552 kcal, which is 28% of an adult’s 2,000 kcal daily reference intake and 43% of the daily intake for a child aged 4 to 6.

How much sugar is in Pret A Manger Tuna Melt Bloomer Toastie?+

Pret A Manger Tuna Melt Bloomer Toastie contains 1.5g of sugar. Boone counts 1.5g as free sugar, about 0.4 teaspoons. That is 5% of an adult’s 30g daily limit and 8% of the 19g limit for a child aged 4 to 6.

How much saturated fat is in Pret A Manger Tuna Melt Bloomer Toastie?+

Pret A Manger Tuna Melt Bloomer Toastie contains 7.4g of saturated fat. Boone calculates this as 37% of the daily guideline for an adult woman and 25% for an adult man, because the guideline differs by sex: 20g and 30g respectively.

How much salt is in Pret A Manger Tuna Melt Bloomer Toastie?+

Pret A Manger Tuna Melt Bloomer Toastie contains 2.6g of salt. Boone calculates that as 86% of the daily limit for a child aged 4 to 6 and 43% of an adult’s 6g limit.

Is Pret A Manger Tuna Melt Bloomer Toastie ultra-processed?+

Boone classifies Pret A Manger Tuna Melt Bloomer Toastie as NOVA group 3. Its published ingredient list contains none of the additives Boone treats as markers of ultra-processing. NOVA describes how far a food is from its whole-food form, not how nutritious it is.

How much fibre is in Pret A Manger Tuna Melt Bloomer Toastie?+

Pret A Manger Tuna Melt Bloomer Toastie contains 5g of fibre. Boone calculates that as 17% of an adult’s 30g daily target and 33% of the 15g target for a child aged 4 to 6.

How much protein is in Pret A Manger Tuna Melt Bloomer Toastie?+

Pret A Manger Tuna Melt Bloomer Toastie contains 34g of protein, which Boone calculates as 68% of a 50g adult daily target.

Is Pret A Manger Tuna Melt Bloomer Toastie vegetarian?+

No. Pret does not list Pret A Manger Tuna Melt Bloomer Toastie as suitable for vegetarians.

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