Banana Katsu: calories and sugar by portion and age

Wagamama Banana Katsu, crisp panko-coated banana with a scoop of miso caramel ice cream and toffee sauce in a white bowl, nutrition and calories

Boone’s analysis puts Wagamama Banana Katsu at 16% of an adult’s daily calories, 17% of the daily salt limit for a child aged 4 to 6 and 4.7 teaspoons of free sugar.

How many calories are in Wagamama Banana Katsu? It contains 327 kcal, 15.4g of fat (6.8g saturated), 18.7g of sugar and 0.5g 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, small plates, a side and a dessert, then choose your age and sex for a more accurate view of how Banana Katsu fits into a day.

Nutrition information

Nutrition information: Wagamama Banana Katsu

Energy	327 kcal
Fat	15.4g
of which saturates	6.8g
Carbohydrate	29.7g
of which sugars	18.7g
Fibre	3.1g
Salt	0.5g
Protein	15.3g

Nutrition figures are Wagamama UK published data from its allergen and nutrition guide for the main menu (June 2026), per serving as served. Boone converts them to the portion and age comparisons on this page.

Wagamama Banana Katsu contains 327 kcal, which is 16% of the 2,000 kcal adult daily reference intake. It provides 15.4g of total fat, of which 6.8g is saturated, 18.7g of sugar, 3.1g of fibre, 0.5g of salt and 15.3g of protein.

The saturated fat content of 6.8g represents 34% of the adult daily guideline of 20g.

Sugar in Wagamama Banana Katsu

Wagamama Banana Katsu contains 18.7g of sugar per serving (4.7 teaspoons). Some of it comes from banana, which NHS limits do not always count, but Wagamama does not publish the split, so Boone counts the full figure as free sugar rather than guess. High 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: Wagamama Banana Katsu

Portion	Adult (female) 30g	Adult (male) 30g	Age 11 to 17 30g	Age 7 to 10 24g	Age 4 to 6 19g
Per portion	18.7g 62%	18.7g 62%	18.7g 62%	18.7g 78%	18.7g 98%

Teaspoons: 4.7 tsp

Boone calculates these percentages from Wagamama 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 Wagamama Banana Katsu

Wagamama Banana Katsu contains 0.5g of salt per serving. Low salt

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

Salt by portion: Wagamama Banana Katsu

Portion	Adult (female) 6g	Adult (male) 6g	Age 11 to 17 6g	Age 7 to 10 5g	Age 4 to 6 3g
Per portion	0.5g 8%	0.5g 8%	0.5g 8%	0.5g 10%	0.5g 17%

Calories in Wagamama Banana Katsu

Wagamama Banana Katsu contains 327 kcal per serving. Moderate calorie share

Daily calorie needs vary by age and sex.

Calories by portion: Wagamama Banana Katsu

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	327 kcal 16%	327 kcal 13%	327 kcal 17%	327 kcal 21%	327 kcal 25%

Saturated fat in Wagamama Banana Katsu

Wagamama Banana Katsu contains 6.8g of saturated fat per 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: Wagamama Banana Katsu

Portion	Adult (female) 20g	Adult (male) 30g	Age 11 to 17 20g	Age 7 to 10 18g	Age 4 to 6 16g
Per portion	6.8g 34%	6.8g 23%	6.8g 34%	6.8g 38%	6.8g 43%

Free sugar vs total sugar

Where the sugar comes from: Wagamama Banana Katsu

All 18.7g is counted as free sugar. Part of it comes from banana. Wagamama does not publish how much, so Boone counts the full figure rather than estimate it, which means the free sugar here may be slightly overstated. That is 4.7 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: Wagamama Banana Katsu

Boone cannot classify this item, because Wagamama 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 Wagamama publishes one, this section will be updated.

Ingredients

Wagamama does not publish an ingredient list in its allergen and nutrition guide

Ingredients: Wagamama Banana Katsu

The Wagamama UK allergen and nutrition guide gives nutrition figures for Wagamama Banana Katsu 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 Wagamama and is shown below. Recipes change, so always check in restaurant before ordering if you have an allergy.

Allergens at a glance

Wagamama Banana Katsu contains gluten (wheat) and soya. It may contain traces of sesame and sulphites. Wagamama lists it as suitable for vegans.

Allergen information: Wagamama Banana Katsu

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

Contains = declared as an ingredient in the Wagamama UK allergen guide (June 2026). May contain traces = Wagamama says the allergen is not added on purpose but cross-contamination can happen in manufacture, handling, transport, storage or cooking, including shared fryer oil. Not declared = not listed in that guide, which is not the same as allergen free. Wagamama asks anyone with a food allergy or intolerance to tell their server on every visit, and recipes change, so check before ordering.

Frequently asked questions

How many calories are in Wagamama Banana Katsu?+

Boone calculates that Wagamama Banana Katsu contains 327 kcal, which is 16% of an adult’s 2,000 kcal daily reference intake and 25% of the daily intake for a child aged 4 to 6.

How much sugar is in Wagamama Banana Katsu?+

Wagamama Banana Katsu contains 18.7g of sugar, which Boone counts as free sugar, or about 4.7 teaspoons. That is 62% of an adult’s 30g daily limit and 98% of the 19g limit for a child aged 4 to 6.

How much saturated fat is in Wagamama Banana Katsu?+

Wagamama Banana Katsu contains 6.8g of saturated fat. Boone calculates this as 34% of the daily guideline for an adult woman and 23% for an adult man, because the guideline differs by sex: 20g and 30g.

How much salt is in Wagamama Banana Katsu?+

Wagamama Banana Katsu contains 0.5g of salt. Boone calculates that as 17% of the daily limit for a child aged 4 to 6 and 8% of an adult’s 6g limit.

Is Wagamama Banana Katsu ultra-processed?+

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

Is Wagamama Banana Katsu vegan?+

Yes. Wagamama lists Wagamama Banana Katsu as suitable for vegans. Check the allergen table on this page for anything else you avoid.