Egg Mayonnaise & Tomato Sandwich: calories and sugar by portion and age

Greggs Egg Mayonnaise & Tomato Sandwich, malted bread sandwich with egg mayonnaise and tomato on white paper, nutrition and calories

Boone’s analysis puts Greggs Egg Mayonnaise & Tomato Sandwich at 17% of an adult’s daily calories, 43% of the daily salt limit for a child aged 4 to 6 and 1.8 teaspoons of free sugar.

How many calories are in a Greggs Egg Mayonnaise & Tomato Sandwich? It contains 347 kcal, 11g of fat (1.9g saturated), 7g of sugar and 1.3g of salt.

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Use the Boone calculator to build a full Greggs order rather than view this item on its own. Add a bake or sandwich, a sweet treat and a drink, then choose your age and sex for a more accurate view of how a Egg Mayonnaise & Tomato Sandwich fits into a day.

Nutrition information

Nutrition information: Greggs Egg Mayonnaise & Tomato Sandwich

Energy	347 kcal
Fat	11g
of which saturates	1.9g
Carbohydrate	44g
of which sugars	7g
Fibre	4.4g
Protein	14g
Salt	1.3g

Nutrition figures are Greggs UK published data (September 2026), per item as sold. Boone converts them to the portion and age comparisons on this page.

Greggs Egg Mayonnaise & Tomato Sandwich contains 347 kcal, which is 17% of the 2,000 kcal adult daily reference intake. It provides 11g of total fat, of which 1.9g is saturated, 7g of sugar, 4.4g of fibre, 1.3g of salt and 14g of protein.

The saturated fat content of 1.9g represents 10% of the adult daily guideline of 20g.

Greggs gives the portion size as 185.3g, which works out at 187 kcal per 100g.

Sugar in Greggs Egg Mayonnaise & Tomato Sandwich

Greggs Egg Mayonnaise & Tomato Sandwich contains 7g of free sugar per standard serving (1.8 teaspoons). Greggs publishes a total sugar figure of 7g and none of it is naturally occurring. Moderate 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: Greggs Egg Mayonnaise & Tomato Sandwich

Portion	Adult (female) 30g	Adult (male) 30g	Age 11 to 17 30g	Age 7 to 10 24g	Age 4 to 6 19g
Per portion	7g 23%	7g 23%	7g 23%	7g 29%	7g 37%

Teaspoons: 1.8 tsp

Boone calculates these percentages from Greggs UK published nutrition data against UK Dietary Reference Values and NHS free sugar and salt limits. Free sugar, salt, calories and saturated fat are limits to stay under. For guidance only.

Salt in Greggs Egg Mayonnaise & Tomato Sandwich

Greggs Egg Mayonnaise & Tomato Sandwich contains 1.3g of salt per standard serving. Moderate salt

Children have lower salt limits: 3g per day for ages 4 to 6, 5g for ages 7 to 10.

Salt by portion: Greggs Egg Mayonnaise & Tomato Sandwich

Portion	Adult (female) 6g	Adult (male) 6g	Age 11 to 17 6g	Age 7 to 10 5g	Age 4 to 6 3g
Per portion	1.3g 22%	1.3g 22%	1.3g 22%	1.3g 26%	1.3g 43%

Calories in Greggs Egg Mayonnaise & Tomato Sandwich

Greggs Egg Mayonnaise & Tomato Sandwich contains 347 kcal per standard serving. Moderate calorie share

Daily calorie needs vary by age and sex.

Calories by portion: Greggs Egg Mayonnaise & Tomato Sandwich

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	347 kcal 17%	347 kcal 14%	347 kcal 18%	347 kcal 22%	347 kcal 27%

Saturated fat in Greggs Egg Mayonnaise & Tomato Sandwich

Greggs Egg Mayonnaise & Tomato Sandwich contains 1.9g of saturated fat per standard serving. Moderate saturated fat

The saturated fat guideline is 20g a day for women and 30g for men, and lower for children.

Saturated fat by portion: Greggs Egg Mayonnaise & Tomato Sandwich

Portion	Adult (female) 20g	Adult (male) 30g	Age 11 to 17 20g	Age 7 to 10 18g	Age 4 to 6 16g
Per portion	1.9g 10%	1.9g 6%	1.9g 10%	1.9g 11%	1.9g 12%

Free sugar vs total sugar

Where the sugar comes from: Greggs Egg Mayonnaise & Tomato Sandwich

All 7g counts as free sugar. There is no milk or whole fruit in this item, so nothing is deducted. That is 1.8 teaspoons.

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: Greggs Egg Mayonnaise & Tomato Sandwich

Boone cannot classify this item, because Greggs chooses not to publish an ingredient list for it.

NOVA classification is read from an ingredient list. Without one there is no way to count additives, separate raw ingredients from manufactured ones, or say whether an item is ultra-processed. Boone does not estimate a NOVA group, because a guess presented as a classification would be worse than saying nothing.

Greggs publishes calories, macronutrients, fibre and allergens for its menu. Ingredient lists are the missing piece.

Ingredients

Greggs chooses not to publish an ingredient list

Ingredients: Greggs Egg Mayonnaise & Tomato Sandwich

Greggs does not publish the ingredients in a Greggs Egg Mayonnaise & Tomato Sandwich, and it is under no legal obligation to do so.

Food prepared in a shop and sold loose counts as non-prepacked under UK food law. The legal requirement is to declare the 14 major allergens, and for large businesses in England to show calories at the point of choice. A full ingredient list is voluntary. Some chains publish one anyway. Greggs publishes nutrition and allergens for every item, but not ingredients.

This means no page on this site can tell you how many ingredients are in this item, how many of them are manufactured substances, or whether it is ultra-processed. Boone will not estimate any of it. That absence is Greggs’s decision, not an omission on our part.

Greggs is not unusual in this. UK law lets any business selling food made on the premises skip ingredient labelling entirely, and the chains that publish do so by choice.

Allergen information for this item is published by Greggs and is shown below. Recipes change, so always check in the shop before buying if you have an allergy.

Allergens at a glance

Greggs Egg Mayonnaise & Tomato Sandwich contains wheat, barley, soya, eggs, mustard and gluten.

Allergen information: Greggs Egg Mayonnaise & Tomato Sandwich

Allergen	Status
Wheat	Contains
Rye	May contain traces
Barley	Contains
Oats	May contain traces
Spelt	May contain traces
Kamut	May contain traces
Peanuts	Not present
Tree nuts	Not present
Sesame	Not present
Soya	Contains
Milk	May contain traces
Eggs	Contains
Fish	May contain traces
Crustaceans	Not present
Molluscs	Not present
Celery	May contain traces
Mustard	Contains
Sulphites	May contain traces
Lupin	Not present

Contains = declared as an ingredient. May contain traces = Greggs states the allergen cannot be excluded. Source: Greggs Customer Allergen Information Guide, version 13, 1 October 2026. Greggs prepares much of its food and drink in shop kitchens with shared equipment and cannot guarantee any item is allergen free.

Frequently asked questions

How many calories are in a Greggs Egg Mayonnaise & Tomato Sandwich?+

Boone calculates that a Greggs Egg Mayonnaise & Tomato Sandwich contains 347 kcal, which is 17% of an adult’s 2,000 kcal daily reference intake and 27% of the daily intake for a child aged 4 to 6.

How much sugar is in a Greggs Egg Mayonnaise & Tomato Sandwich?+

A Greggs Egg Mayonnaise & Tomato Sandwich contains 7g of sugar, all of which counts as free sugar, or about 1.8 teaspoons. That is 23% of an adult’s 30g daily limit and 37% of the 19g limit for a child aged 4 to 6.

How much saturated fat is in a Greggs Egg Mayonnaise & Tomato Sandwich?+

A Greggs Egg Mayonnaise & Tomato Sandwich contains 1.9g of saturated fat. Boone calculates this as 10% of the daily guideline for an adult woman and 6% for an adult man, because the guideline differs by sex: 20g and 30g.

How much salt is in a Greggs Egg Mayonnaise & Tomato Sandwich?+

A Greggs Egg Mayonnaise & Tomato Sandwich contains 1.3g of salt. Boone calculates that as 43% of the daily limit for a child aged 4 to 6 and 22% of an adult’s 6g limit.

Is a Greggs Egg Mayonnaise & Tomato Sandwich ultra-processed?+

Greggs does not publish ingredient lists for food and drink prepared in its shops, and UK law does not require it to, so Boone cannot assign a NOVA group to this item.

Is a Greggs Egg Mayonnaise & Tomato Sandwich classed as less healthy?+

Under the government’s 2018 nutrient profiling model a Greggs Egg Mayonnaise & Tomato Sandwich scores 2. The model classes a food scoring 4 or more as less healthy, so this item would not be. The 2018 model is published but not yet used for advertising rules. Greggs publishes fibre, so Boone uses its figure directly.