Ham and Mushroom Authentic Thin Crust: calories and sugar by slice, size and age

Papa John's Ham and Mushroom (Authentic Thin Crust), whole Authentic Thin Crust pizza with ham and chestnut mushrooms in a takeaway pizza box, nutrition and calories

Boone’s analysis puts a Large Papa John's Ham and Mushroom on Authentic Thin Crust at 86% of an adult’s daily calories, 309% of the daily salt limit for a child aged 4 to 6 and 9.7 teaspoons of free sugar.

How many calories are in a Papa John's Ham and Mushroom Authentic Thin Crust pizza? A Large slice is 173 kcal. The whole Large pizza, cut into 10 slices, is 1,730 kcal, with 49g of fat (22g saturated), 39g of sugar and 9.3g of salt.

On Authentic Thin Crust it comes as Medium (1,192 kcal, 8 slices), Large (1,730 kcal, 10 slices) and XXL (2,340 kcal, 12 slices). The same Large pizza is 2,271 kcal on Original Base, 2,637 kcal on Stuffed Crust, 2,962 kcal on Cheddar Stuffed Crust and 1,098 kcal on Wheat Free Stone Baked (Medium).

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. Pick any size of pizza, then add a side, a dessert and more, and choose your age and sex for a more accurate view of how a Ham and Mushroom on Authentic Thin Crust fits into a day.

Nutrition information

Nutrition information: Papa John's Ham and Mushroom Authentic Thin Crust pizza (Large, per slice / whole pizza)

Energy	173 kcal a slice / 1,730 kcal whole
Fat	4.9g / 49g
of which saturates	2.2g / 22g
Carbohydrate	23g / 229g
of which sugars	3.9g / 39g
Fibre	1.9g / 19g
Salt	0.93g / 9.3g
Protein	8.3g / 83g

Nutrition figures are Papa John's UK published data (October 2026), per slice and per whole Large pizza. Boone converts them to the portion and age comparisons on this page.

The whole Large Papa John's Ham and Mushroom Authentic Thin Crust pizza contains 1,730 kcal, which is 86% of the 2,000 kcal adult daily reference intake. It provides 49g of total fat, of which 22g is saturated, 39g of sugar, 9.3g of salt, 19g of fibre and 83g of protein.

The saturated fat content of 22g represents 110% of the adult daily guideline of 20g.

Papa John's publishes a Large pizza weight of 730g, which works out at 237 kcal per 100g.

Calories by size

Every size on Authentic Thin Crust: Papa John's Ham and Mushroom Authentic Thin Crust pizza

Size	Slices	Weight	Per slice	Whole pizza
Medium	8	516g	149 kcal	1,192 kcal
Large	10	730g	173 kcal	1,730 kcal
XXL	12	1,000g	195 kcal	2,340 kcal

Pick any size in the calculator above. The figures elsewhere on this page are for the Large.

Sugar in Papa John's Ham and Mushroom Authentic Thin Crust pizza

The whole Large Papa John's Ham and Mushroom Authentic Thin Crust pizza contains 39g of free sugar (9.7 teaspoons). 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: Papa John's Ham and Mushroom Authentic Thin Crust pizza

Portion	Adult (female) 30g	Adult (male) 30g	Age 11 to 17 30g	Age 7 to 10 24g	Age 4 to 6 19g
1 slice	3.9g 13%	3.9g 13%	3.9g 13%	3.9g 16%	3.9g 20%
Whole Large pizza (10 slices)	39g 129%	39g 129%	39g 129%	39g 161%	39g 204%

Teaspoons: 9.7 tsp

Boone calculates these percentages from Papa John's 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 Papa John's Ham and Mushroom Authentic Thin Crust pizza

The whole Large Papa John's Ham and Mushroom Authentic Thin Crust pizza contains 9.3g of salt. High salt

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

Salt by portion: Papa John's Ham and Mushroom Authentic Thin Crust pizza

Portion	Adult (female) 6g	Adult (male) 6g	Age 11 to 17 6g	Age 7 to 10 5g	Age 4 to 6 3g
1 slice	0.93g 15%	0.93g 15%	0.93g 15%	0.93g 19%	0.93g 31%
Whole Large pizza (10 slices)	9.3g 155%	9.3g 155%	9.3g 155%	9.3g 185%	9.3g 309%

Calories in Papa John's Ham and Mushroom Authentic Thin Crust pizza

The whole Large Papa John's Ham and Mushroom Authentic Thin Crust pizza contains 1,730 kcal. High calorie share

Daily calorie needs vary by age and sex.

Calories by portion: Papa John's Ham and Mushroom Authentic Thin Crust pizza

Portion	Adult (female) 2,000 kcal	Adult (male) 2,500 kcal	Age 11 to 17 1,936 kcal	Age 7 to 10 1,553 kcal	Age 4 to 6 1,291 kcal
1 slice	173 kcal 9%	173 kcal 7%	173 kcal 9%	173 kcal 11%	173 kcal 13%
Whole Large pizza (10 slices)	1,730 kcal 86%	1,730 kcal 69%	1,730 kcal 89%	1,730 kcal 111%	1,730 kcal 134%

Saturated fat in Papa John's Ham and Mushroom Authentic Thin Crust pizza

The whole Large Papa John's Ham and Mushroom Authentic Thin Crust pizza contains 22g of saturated fat. 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: Papa John's Ham and Mushroom Authentic Thin Crust pizza

Portion	Adult (female) 20g	Adult (male) 30g	Age 11 to 17 20g	Age 7 to 10 18g	Age 4 to 6 16g
1 slice	2.2g 11%	2.2g 7%	2.2g 11%	2.2g 12%	2.2g 14%
Whole Large pizza (10 slices)	22g 110%	22g 73%	22g 110%	22g 122%	22g 137%

Free sugar vs total sugar

Where the sugar comes from: Papa John's Ham and Mushroom Authentic Thin Crust pizza

All 39g counts as free sugar. Papa John's does not separate naturally occurring sugar from added sugar, so Boone counts the full figure. Sugars from tomato sauce, BBQ sauce, honey drizzles, dough and added sugar are free sugars; any from whole vegetables, pineapple or cheese would not be, so this may slightly overstate it. That is 9.7 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: Papa John's Ham and Mushroom Authentic Thin Crust pizza

Boone cannot classify this item, because Papa John's does not publish full ingredient lists for its dough, sauces, cheese or toppings.

NOVA classification is read from an ingredient list. Papa John's names the toppings on each item and the allergens in each component, which is more than many chains publish, but that is not enough 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.

Where Papa John's does publish a full list (its wheat-free base, its sourdough base and its vegan Sheese) it is shown in the ingredients section above.

Ingredients

Papa John's Ham and Mushroom Authentic Thin Crust pizza is assembled from 5 components. Papa John's names each topping and the allergens in each component, but it does not publish full ingredient lists for its dough, sauces, cheese or toppings, so Boone cannot count ingredients or additives.

Components: Papa John's Ham and Mushroom Authentic Thin Crust pizza

Authentic thin crust base

Papa John's fresh dough, rolled thin. Allergens: wheat (gluten). Full ingredient list not published.

Pizza sauce

Allergens: none listed.

Mozzarella

Allergens: milk.

Ham

Allergens: none listed.

Chestnut mushrooms

Allergens: none listed.

Toppings and component allergens from the Papa John's UK Allergen and Nutritional Information Guide (valid from 1 October 2026). Recipes change, so always check with the store before ordering if you have an allergy.

Allergens at a glance

The Papa John's Ham and Mushroom Authentic Thin Crust pizza contains wheat and milk.

Allergen information: Papa John's Ham and Mushroom Authentic Thin Crust pizza

Allergen	Status
Wheat	Contains
Rye	Not present
Barley	Not present
Oats	Not present
Sesame	Not present
Soya	Not present
Milk	Contains
Eggs	Not present
Fish and shellfish	Not present
Molluscs	Not present
Celery	Not present
Mustard	Not present
Lupin	Not present
Sulphites	Not present
Peanuts	Not present
Tree nuts	Not present

Contains = declared by Papa John's as an ingredient allergen. May contain traces = Papa John's or its supplier flags a risk of cross contact. Papa John's makes food by hand in stores that handle milk and wheat, and all pizzas and many sides pass through shared ovens and equipment, so it cannot guarantee any item is free from any allergen, including its wheat-free base, which is not suitable for coeliacs. From the Papa John's UK Allergen and Nutritional Information Guide (valid from 1 October 2026).

Frequently asked questions

How many calories are in a Papa John's Ham and Mushroom Authentic Thin Crust pizza?+

Boone calculates that a slice of a Large Papa John's Ham and Mushroom on Authentic Thin Crust is 173 kcal and the whole Large pizza is 1,730 kcal, which is 86% of an adult’s 2,000 kcal daily reference intake and 134% of the daily intake for a child aged 4 to 6.

How many calories are in each size of Ham and Mushroom on Authentic Thin Crust?+

On Authentic Thin Crust the Papa John's Ham and Mushroom is 1,192 kcal as a Medium (149 kcal a slice), 1,730 kcal as a Large (173 kcal a slice) and 2,340 kcal as a XXL (195 kcal a slice).

How much sugar is in a Papa John's Ham and Mushroom Authentic Thin Crust pizza?+

The whole Large pizza contains 39g of sugar, all of which counts as free sugar, or about 9.7 teaspoons. That is 129% of an adult’s 30g daily limit and 204% of the 19g limit for a child aged 4 to 6.

How much saturated fat is in a Papa John's Ham and Mushroom Authentic Thin Crust pizza?+

The whole Large pizza contains 22g of saturated fat. Boone calculates this as 110% of the daily guideline for an adult woman and 73% for an adult man, because the guideline differs by sex: 20g and 30g.

How much salt is in a Papa John's Ham and Mushroom Authentic Thin Crust pizza?+

The whole Large pizza contains 9.3g of salt, or 0.93g a slice. Boone calculates that as 309% of the daily limit for a child aged 4 to 6 and 155% of an adult’s 6g limit. One slice is 31% of that child’s limit.

How much protein is in a Papa John's Ham and Mushroom Authentic Thin Crust pizza?+

The whole Large pizza contains 83g of protein, which Boone calculates as 166% of a 50g adult daily target.

Is a Papa John's Ham and Mushroom Authentic Thin Crust pizza classed as less healthy?+

Under the government’s 2018 nutrient profiling model a Papa John's Ham and Mushroom on Authentic Thin Crust scores 12. 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. Papa John's does not publish fruit, vegetable, nut or seed content, so Boone scores that component as zero.

Is a Papa John's Ham and Mushroom pizza ultra-processed?+

Papa John's names the toppings and allergens on each pizza but does not publish full ingredient lists for its dough, sauces, cheese or toppings, and UK law does not require it to for food made to order. Boone therefore cannot assign a NOVA group to this pizza.

Can I get the Ham and Mushroom wheat free?+

Yes. Papa John's makes the Ham and Mushroom on a Medium wheat-free stone-baked base, 1,098 kcal for the whole pizza. It is made in stores that handle gluten, so Papa John's says it is not suitable for coeliacs.