Free UK delivery on all orders · At-home saliva test · Secure checkout
Free UK delivery on all orders

McDonald's US Hot Fudge Sundae: calories and sugar by portion, age and sex

Boone’s analysis puts McDonald's US Hot Fudge Sundae at 16% of an adult’s daily calories, 11% of the daily sodium limit for a child aged 4 to 8 and 9.0 teaspoons of added sugar.

How many calories are in a McDonald's US Hot Fudge Sundae? It contains 330 calories, 10g of fat (7g saturated), 36g of added sugar and 170mg of sodium.

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 fries, a drink, dips and a dessert, then choose your age and sex, and switch between US and UK guidance, for a more accurate view of how a Hot Fudge Sundae fits into a day.

Nutrition information

Nutrition information: McDonald's US Hot Fudge Sundae

Calories330
Total fat10g
of which saturated7g
Trans fat0g
Carbohydrate51g
Total sugars44g
Includes added sugars36g
Fibre2g
Protein8g
Sodium170mg

Nutrition figures are McDonald’s USA published data, per item as sold and before any optional sauces or extras. Boone converts them to the portion and age comparisons on this page.

McDonald's US Hot Fudge Sundae contains 330 calories, which is 16% of the 2,000-calorie Daily Value used on US food labels. It provides 10g of total fat, of which 7g is saturated, 44g of total sugars (36g added), 170mg of sodium, 8g of protein and 2g of fibre.

The saturated fat content of 7g represents 35% of the 20g Daily Value.

McDonald's US Hot Fudge Sundae is assembled from 2 separately manufactured components, combined at the point of sale. The hot fudge topping alone carries 7 different classes of additive. Across the whole item the ingredient list names corn syrups and invert sugar, emulsifiers, thickeners and gums, flavourings, preservatives, phosphates and raising agents, hydrogenated or interesterified oils and weighting agents. None of these add nutritional value. They exist to make the item survive industrial production, storage and transport.

McDonald's US Hot Fudge Sundae is over the US per-meal added sugar limit

McDonald's US Hot Fudge Sundae contains 36g of added sugar, 3.6 times the 10g per-meal limit in the Dietary Guidelines for Americans. The same guidelines recommend no added sugar at all for children aged 10 and under.

FDA Daily Values (2,000-calorie diet)

Calories2,000
Total fat78g
Saturated fat20g
Carbohydrate275g
Added sugars50g
Fibre28g
Sodium2,300mg
Protein50g

Added sugar vs total sugar

Where the sugar comes from: McDonald's US Hot Fudge Sundae

36g of the 44g counts as added sugar, or about 9.0 teaspoons. The other 8g is naturally occurring.

Added sugars come from

  • sugar, corn syrup in the vanilla reduced fat ice cream
  • sugar, corn syrup in the hot fudge topping

Naturally occurring sugars come from

  • lactose in the vanilla reduced fat ice cream
  • lactose in the hot fudge topping

Dietary Guidelines for Americans, 2025–2030: no more than 10g of added sugar per meal from age 11 and none for children aged 10 and under. FDA Daily Value: 50g a day. Sources are read from the published ingredient list for each component.

Ultra-processed food: what is really in it

Processing and additives: McDonald's US Hot Fudge Sundae

McDonald's US Hot Fudge Sundae is assembled from 2 separately manufactured components, combined and served at the point of sale. Reading the ingredient list closely, it contains corn syrups and invert sugar, emulsifiers, thickeners and gums, flavourings, preservatives, phosphates and raising agents, hydrogenated or interesterified oils and weighting agents. These are not there to add nutritional value. They make industrial production and distribution possible.

Corn syrups and invert sugar

Sweeten and control texture more cheaply than sugar alone. Found in the vanilla reduced fat ice cream and hot fudge topping.

Emulsifiers

Help oil-based and water-based ingredients blend and stay blended. Found in the vanilla reduced fat ice cream and hot fudge topping.

Thickeners and gums

Thicken sauces, fillings and drinks and stop them separating. Found in the vanilla reduced fat ice cream.

Flavourings

Add or restore taste lost during processing. Found in the vanilla reduced fat ice cream and hot fudge topping.

Preservatives

Slow the growth of bacteria, yeasts and moulds in centrally prepared components. Found in the hot fudge topping.

Phosphates and raising agents

Hold moisture in meat, control acidity or make batters and doughs rise. Found in the hot fudge topping.

Hydrogenated or interesterified oils

Industrially hardened fats used for stability and frying life. Found in the hot fudge topping.

Weighting agents

Keep flavour oils evenly suspended in drinks. Found in the hot fudge topping.

Boone classifies McDonald's US Hot Fudge Sundae as NOVA group 4, ultra-processed, based on the additives named above. NOVA groups foods by how far they are from their whole-food form, not by how nutritious they are. A group 4 food is not automatically unhealthy, and a group 1 food is not automatically healthy. Read from the published ingredient list, September 2026.

McDonald's US Hot Fudge Sundae contains at least 19 distinct ingredients: 7 raw and 12 manufactured. Ordered as a full meal with a dip and a dessert that reaches 57, of which 32 are manufactured. Raw means something you could buy and cook with at home; manufactured means a substance that only exists as an output of industrial processing.

Ingredient count by order: McDonald's US Hot Fudge Sundae

What you orderRawManufacturedTotal% manufactured
McDonald's US Hot Fudge Sundae on its own7121963%
McDonald's US Hot Fudge Sundae + medium fries11162759%
McDonald's US Hot Fudge Sundae + fries + a dip20234353%
McDonald's US Hot Fudge Sundae + fries + dip + a medium Coca-Cola21254654%
McDonald's US Hot Fudge Sundae + fries + dip + drink + an OREO McFlurry25325756%

The 12 manufactured ingredients

carrageenan, cellulose gum, corn syrup, disodium phosphate, guar gum, hydrogenated palm kernel oil, mono and diglycerides, natural flavor, polyglycerol esters of fatty acids, potassium sorbate, soy lecithin, vitamin a palmitate.

The 7 raw ingredients

cocoa, cream, milk, processed with alkali, salt, sugar, water.

What those ingredients are, by type

Other additives and processing aids8
Meat, fish, dairy and eggs2
Sugars and syrups2
Flavourings and extracts1
Vitamins and fortification1
Water1
Oils and fats1
Fruit, vegetables and nuts1
Salt and minerals1
Acids and acidity regulators1

Boone counts every distinct named ingredient on McDonald’s published component lists, including sub-ingredients, and removes duplicates, so salt appearing in four components counts once. Additive class names are dropped and the named substance kept, so “leavening (baking soda)” counts baking soda once. Ice and water added at the counter are not counted. Raw covers whole foods and basic kitchen staples such as flour, sugar, salt and oil. Manufactured covers substances that only exist as an output of industrial processing. Every figure here is a minimum. The build uses a Sweet ’n Sour sauce.

Ingredients

McDonald's US Hot Fudge Sundae is assembled from 2 separately manufactured components.

Ingredients by component: McDonald's US Hot Fudge Sundae

Vanilla reduced fat ice cream

Milk, Sugar, Cream, Corn Syrup, Natural Flavor, Mono And Diglycerides, Cellulose Gum, Guar Gum, Carrageenan, Vitamin A Palmitate.

Hot fudge topping

Sugar, Water, Nonfat Milk, Hydrogenated Palm Kernel Oil, Cocoa (processed With Alkali), Corn Syrup, Salt, Disodium Phosphate, Soy Lecithin, Natural Flavor, Potassium Sorbate (preservative), Polyglycerol Esters Of Fatty Acids.

Ingredients taken from the McDonald’s USA product pages, retrieved September 2026, with obvious spelling errors corrected. Recipes change - always check in restaurant before ordering if you have an allergy.

Allergens at a glance

McDonald's US Hot Fudge Sundae contains milk and soy.

Allergen information: McDonald's US Hot Fudge Sundae

AllergenStatus
MilkContains
EggsNot declared
FishNot declared
Crustacean shellfishNot declared
Tree nutsNot declared
PeanutsNot declared
WheatNot declared
SoybeansContains
SesameNot declared

Contains = declared by McDonald’s USA. May contain = McDonald’s states the allergen may be present. McDonald’s prepares food in shared kitchens, so no item can be guaranteed allergen free. UK rules also require barley, oats, mustard, celery and sulphites to be declared; these are shown where the ingredient list names them. Retrieved September 2026.

Frequently asked questions

How many calories are in a McDonald's US Hot Fudge Sundae?+

Boone calculates that McDonald's US Hot Fudge Sundae contains 330 calories, which is 16% of the 2,000-calorie Daily Value and 22% of the daily needs of a moderately active child aged 4 to 8.

How much added sugar is in a McDonald's US Hot Fudge Sundae?+

Boone calculates that McDonald's US Hot Fudge Sundae contains 36g of added sugar, about 9.0 teaspoons, which is 72% of the 50g FDA Daily Value.

Is McDonald's US Hot Fudge Sundae within US sugar guidance for children?+

The Dietary Guidelines for Americans, 2025–2030 recommend no added sugar for children aged 10 and under and no more than 10g per meal from age 11. With 36g of added sugar, McDonald's US Hot Fudge Sundae is over both.

How much saturated fat is in a McDonald's US Hot Fudge Sundae?+

McDonald's US Hot Fudge Sundae contains 7g of saturated fat. Boone calculates this as 35% of the 20g Daily Value and 41% of the 17g limit for a child aged 4 to 8.

How much sodium is in a McDonald's US Hot Fudge Sundae?+

McDonald's US Hot Fudge Sundae contains 170mg of sodium. Boone calculates that as 11% of the daily limit for a child aged 4 to 8 and 7% of the 2,300mg adult limit.

Is McDonald's US Hot Fudge Sundae ultra-processed?+

Boone classifies McDonald's US Hot Fudge Sundae as NOVA group 4. Reading the published ingredient list, it is assembled from 2 separately manufactured components and contains corn syrups and invert sugar, emulsifiers, thickeners and gums, flavourings, preservatives, phosphates and raising agents, hydrogenated or interesterified oils and weighting agents. NOVA group 4 describes how far a food is from its whole-food form, not how nutritious it is.

How much fibre is in a McDonald's US Hot Fudge Sundae?+

McDonald's US Hot Fudge Sundae contains 2g of fibre. Boone calculates that as 7% of the 28g Daily Value and 10% of the 21g target for a child aged 4 to 8. Fibre is a target to reach rather than a limit to stay under.

Is McDonald's US Hot Fudge Sundae suitable for children?+

Boone’s analysis flags that its 36g of added sugar is above the Dietary Guidelines advice of no added sugar for children aged 10 and under; its 7g of saturated fat is 41% of their daily limit. That does not make it off limits, but it does mean a Hot Fudge Sundae uses up a large share of a young child’s day in one item.

How much protein is in a McDonald's US Hot Fudge Sundae?+

McDonald's US Hot Fudge Sundae contains 8g of protein, which Boone calculates as 16% of the 50g Daily Value.