Plant Based Buffalo Sandwich: calories and sugar by portion and age

Slim Chickens Plant Based Buffalo Sandwich, breaded plant-based tenders tossed in buffalo hot sauce with pickles and lettuce in a brioche bun on white paper, nutrition and calories

Boone’s analysis puts Slim Chickens Plant Based Buffalo Sandwich at 42% of an adult’s daily calories, 207% of the daily salt limit for a child aged 4 to 6 and 1.5 teaspoons of free sugar.

How many calories are in a Slim Chickens Plant Based Buffalo Sandwich? It contains 840 kcal, 46.6g of fat (6.2g saturated), 5.9g of sugar and 6.2g 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 main, fries, dips and a drink, then choose your age and sex for a more accurate view of how a Plant Based Buffalo Sandwich fits into a day.

Nutrition information

Nutrition information: Slim Chickens Plant Based Buffalo Sandwich

Energy	840 kcal
Fat	46.6g
of which saturates	6.2g
Carbohydrate	56.2g
of which sugars	5.9g
Fibre	6.5g
Salt	6.2g
Protein	45.6g

Nutrition figures are Slim Chickens UK published data from its online allergen and nutrition menu (September 2026), per item as sold and before any optional sauces or extras. Boone converts them to the portion and age comparisons on this page.

Slim Chickens Plant Based Buffalo Sandwich contains 840 kcal, which is 42% of the 2,000 kcal adult daily reference intake. It provides 46.6g of total fat, of which 6.2g is saturated, 5.9g of sugar, 6.5g of fibre, 6.2g of salt and 45.6g of protein.

The saturated fat content of 6.2g represents 31% of the adult daily guideline of 20g.

Slim Chickens publishes figures both per portion and per 100g, which puts the portion at about 357g and 235 kcal per 100g.

Sugar in Slim Chickens Plant Based Buffalo Sandwich

Slim Chickens Plant Based Buffalo Sandwich contains 5.9g of free sugar per standard serving (1.5 teaspoons). Slim Chickens publishes a total sugar figure of 5.9g 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: Slim Chickens Plant Based Buffalo 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	5.9g 20%	5.9g 20%	5.9g 20%	5.9g 25%	5.9g 31%

Teaspoons: 1.5 tsp

Boone calculates these percentages from Slim Chickens 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 Slim Chickens Plant Based Buffalo Sandwich

Slim Chickens Plant Based Buffalo Sandwich contains 6.2g of salt per standard 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: Slim Chickens Plant Based Buffalo 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	6.2g 103%	6.2g 103%	6.2g 103%	6.2g 124%	6.2g 207%

Calories in Slim Chickens Plant Based Buffalo Sandwich

Slim Chickens Plant Based Buffalo Sandwich contains 840 kcal per standard serving. High calorie share

Daily calorie needs vary by age and sex.

Calories by portion: Slim Chickens Plant Based Buffalo 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	840 kcal 42%	840 kcal 34%	840 kcal 43%	840 kcal 54%	840 kcal 65%

Saturated fat in Slim Chickens Plant Based Buffalo Sandwich

Slim Chickens Plant Based Buffalo Sandwich contains 6.2g 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: Slim Chickens Plant Based Buffalo 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	6.2g 31%	6.2g 21%	6.2g 31%	6.2g 34%	6.2g 39%

Free sugar vs total sugar

Where the sugar comes from: Slim Chickens Plant Based Buffalo Sandwich

All 5.9g counts as free sugar. There is no milk or whole fruit in this item, so nothing is deducted. That is 1.5 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: Slim Chickens Plant Based Buffalo Sandwich

Boone cannot classify this item, because Slim Chickens 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.

Classification is based on published ingredient lists only. If Slim Chickens publishes one, this section will be updated.

Ingredients

Slim Chickens does not publish an ingredient list on its allergen and nutrition menu

Ingredients: Slim Chickens Plant Based Buffalo Sandwich

The Slim Chickens UK allergen and nutrition menu gives nutrition figures for a Slim Chickens Plant Based Buffalo Sandwich but no ingredients, and the chain is under no legal obligation to publish them.

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. Some chains publish one anyway.

Without an ingredient list, 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.

Allergen information for this item is published by Slim Chickens and is shown below. Recipes change, so always check in restaurant before ordering if you have an allergy.

Allergens at a glance

Slim Chickens Plant Based Buffalo Sandwich contains gluten and soya. It may contain traces of milk, eggs, celery, mustard and sulphites.

Allergen information: Slim Chickens Plant Based Buffalo Sandwich

Allergen	Status
Cereals containing gluten	Contains
Sesame	Not declared
Soya	Contains
Milk	May contain traces
Eggs	May contain traces
Fish	Not declared
Crustaceans	Not declared
Celery	May contain traces
Mustard	May contain traces
Molluscs	Not declared
Lupin	Not declared
Peanuts	Not declared
Tree nuts	Not declared
Sulphites	May contain traces

Contains = declared as an ingredient in the Slim Chickens UK allergen menu (September 2026). May contain traces = Slim Chickens says a supplier makes the ingredient where this allergen is handled, with a significant risk of cross-contamination. Not declared = not listed on that menu, which is not the same as allergen free. Slim Chickens has no allergen-free areas, cooks deep-fried items in shared fryers and says it cannot guarantee any item is allergen free. Tell staff about any allergy before ordering.

Frequently asked questions

How many calories are in a Slim Chickens Plant Based Buffalo Sandwich?+

Boone calculates that a Slim Chickens Plant Based Buffalo Sandwich contains 840 kcal, which is 42% of an adult’s 2,000 kcal daily reference intake and 65% of the daily intake for a child aged 4 to 6.

How much sugar is in a Slim Chickens Plant Based Buffalo Sandwich?+

A Slim Chickens Plant Based Buffalo Sandwich contains 5.9g of sugar, all of which counts as free sugar, or about 1.5 teaspoons. That is 20% of an adult’s 30g daily limit and 31% of the 19g limit for a child aged 4 to 6.

How much saturated fat is in a Slim Chickens Plant Based Buffalo Sandwich?+

A Slim Chickens Plant Based Buffalo Sandwich contains 6.2g of saturated fat. Boone calculates this as 31% of the daily guideline for an adult woman and 21% for an adult man, because the guideline differs by sex: 20g and 30g.

How much salt is in a Slim Chickens Plant Based Buffalo Sandwich?+

A Slim Chickens Plant Based Buffalo Sandwich contains 6.2g of salt. Boone calculates that as 207% of the daily limit for a child aged 4 to 6 and 103% of an adult’s 6g limit.

Is a Slim Chickens Plant Based Buffalo Sandwich ultra-processed?+

Slim Chickens does not include ingredient lists in its UK allergen and nutrition menu, and UK law does not require them for food made to order, so Boone cannot assign a NOVA group to this item.

Is a Slim Chickens Plant Based Buffalo Sandwich classed as less healthy?+

Under the government’s 2018 nutrient profiling model a Slim Chickens Plant Based Buffalo Sandwich scores 9. 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. Slim Chickens publishes fibre but not vegetable content, so Boone estimates the vegetable share from the item's components.