Footlong Cheesy Garlic Slice: calories and sugar by portion and age

Subway Footlong Cheesy Garlic Slice, long flatbread with melted cheese and garlic butter on white paper, nutrition and calories

Boone’s analysis puts Subway Footlong Cheesy Garlic Slice at 15% of an adult’s daily calories, 37% of the daily salt limit for a child aged 4 to 6 and 0.6 teaspoons of free sugar.

How many calories are in a Subway Footlong Cheesy Garlic Slice? It contains 308 kcal, 18g of fat (9.1g saturated), 2.5g of sugar and 1.1g of salt.

Build a full meal with our nutrition calculator

Use the Boone meal calculator to build a full meal rather than view this item on its own. Add a sub, a side, a cookie, cheese or a sauce, then choose your age and sex for a more accurate view of how a Footlong Cheesy Garlic Slice fits into a day.

Nutrition information

Nutrition information: Subway Footlong Cheesy Garlic Slice

Energy	308 kcal
Fat	18g
of which saturates	9.1g
Carbohydrate	20g
of which sugars	2.5g
Fibre	1.1g
Protein	16g
Salt	1.1g

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

Subway Footlong Cheesy Garlic Slice contains 308 kcal, which is 15% of the 2,000 kcal adult daily reference intake. It provides 18g of total fat, of which 9.1g is saturated, 2.5g of sugar, 1.1g of salt and 16g of protein.

The saturated fat content of 9.1g represents 45% of the adult daily guideline of 20g. It also provides 1.1g of fibre, 4% of the 30g adult daily recommendation.

Subway gives the portion weight as 95g, which works out at 324 kcal per 100g.

Sugar in Subway Footlong Cheesy Garlic Slice

Subway Footlong Cheesy Garlic Slice contains 2.5g of free sugar per standard serving (0.6 teaspoons). Subway publishes a total sugar figure of 2.5g and Boone counts all of it as free sugar. 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 and vegetables.

Free sugar by portion: Subway Footlong Cheesy Garlic Slice

Portion	Adult (female) 30g	Adult (male) 30g	Age 11 to 17 30g	Age 7 to 10 24g	Age 4 to 6 19g
Per portion	2.5g 8%	2.5g 8%	2.5g 8%	2.5g 10%	2.5g 13%

Teaspoons: 0.6 tsp

Boone calculates these percentages from Subway 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 Subway Footlong Cheesy Garlic Slice

Subway Footlong Cheesy Garlic Slice contains 1.1g 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: Subway Footlong Cheesy Garlic Slice

Portion	Adult (female) 6g	Adult (male) 6g	Age 11 to 17 6g	Age 7 to 10 5g	Age 4 to 6 3g
Per portion	1.1g 18%	1.1g 18%	1.1g 18%	1.1g 22%	1.1g 37%

Calories in Subway Footlong Cheesy Garlic Slice

Subway Footlong Cheesy Garlic Slice contains 308 kcal per standard serving. Moderate calorie share

Daily calorie needs vary by age and sex.

Calories by portion: Subway Footlong Cheesy Garlic Slice

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	308 kcal 15%	308 kcal 12%	308 kcal 16%	308 kcal 20%	308 kcal 24%

Saturated fat in Subway Footlong Cheesy Garlic Slice

Subway Footlong Cheesy Garlic Slice contains 9.1g of saturated fat per standard serving. High saturated fat

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

Saturated fat by portion: Subway Footlong Cheesy Garlic Slice

Portion	Adult (female) 20g	Adult (male) 30g	Age 11 to 17 20g	Age 7 to 10 18g	Age 4 to 6 16g
Per portion	9.1g 45%	9.1g 30%	9.1g 45%	9.1g 51%	9.1g 57%

Free sugar vs total sugar

Where the sugar comes from: Subway Footlong Cheesy Garlic Slice

All 2.5g counts as free sugar. Boone makes no deduction for milk or whole fruit in this item. That is 0.6 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: Subway Footlong Cheesy Garlic Slice

Boone cannot classify this item, because Subway does not 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.

Ingredients

Subway does not publish an ingredient list for this item

Ingredients: Subway Footlong Cheesy Garlic Slice

Subway’s September 2026 UK nutrition and allergen guides do not include an ingredient list for a Subway Footlong Cheesy Garlic Slice, and it is under no legal obligation to provide one.

Food made to order in a restaurant 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.

Without one, 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.

Subway publishes allergen information for each ingredient, and Boone uses it to build the allergen table below. Recipes change, so always check in restaurant before ordering if you have an allergy.

Allergens at a glance

Subway’s September 2026 allergen guide does not list the Footlong Cheesy Garlic Slice, so Boone cannot show its allergens. Its name indicates bread and cheese, so expect it to contain gluten and milk at least. Ask in store before ordering if you have an allergy.

Frequently asked questions

How many calories are in a Subway Footlong Cheesy Garlic Slice?+

Boone calculates that a Subway Footlong Cheesy Garlic Slice contains 308 kcal, which is 15% of an adult’s 2,000 kcal daily reference intake and 24% of the daily intake for a child aged 4 to 6.

How much sugar is in a Subway Footlong Cheesy Garlic Slice?+

A Subway Footlong Cheesy Garlic Slice contains 2.5g of sugar, all of which counts as free sugar, or about 0.6 teaspoons. That is 8% of an adult’s 30g daily limit and 13% of the 19g limit for a child aged 4 to 6.

How much saturated fat is in a Subway Footlong Cheesy Garlic Slice?+

A Subway Footlong Cheesy Garlic Slice contains 9.1g of saturated fat. Boone calculates this as 45% of the daily guideline for an adult woman and 30% for an adult man, because the guideline differs by sex: 20g and 30g.

How much salt is in a Subway Footlong Cheesy Garlic Slice?+

A Subway Footlong Cheesy Garlic Slice contains 1.1g of salt. Boone calculates that as 37% of the daily limit for a child aged 4 to 6 and 18% of an adult’s 6g limit.

Is a Subway Footlong Cheesy Garlic Slice ultra-processed?+

Subway does not publish ingredient lists for food made to order, and UK law does not require it to, so Boone cannot assign a NOVA group to this item.

Is a Subway Footlong Cheesy Garlic Slice classed as less healthy?+

Under the government’s 2018 nutrient profiling model a Subway Footlong Cheesy Garlic Slice scores 20. The model classes a food scoring 4 or more as less healthy, so this item would be. The 2018 model is published but not yet used for advertising rules. Subway publishes fibre, so Boone uses its figure.