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Starbucks US Impossible Breakfast Sandwich: calories and sugar by portion, age and sex

Starbucks US Impossible Breakfast Sandwich, sesame ciabatta with plant-based sausage patty, fried egg and cheddar, nutrition and calories

Boone’s analysis puts Starbucks US Impossible Breakfast Sandwich at 21% of an adult’s daily calories, 1.0 teaspoons of added sugar and 800mg of sodium.

How many calories are in a Starbucks US Impossible Breakfast Sandwich? It contains 420 calories, 22g of fat (8g saturated), an estimated 4g of added sugar and 800mg of sodium.

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Use the Boone meal calculator to see this item alongside the rest of your order rather than on its own. Choose your age and sex, and switch between US and UK guidance, for a more accurate view of how an Impossible Breakfast Sandwich fits into a day.

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Nutrition information

Nutrition information: Starbucks US Impossible Breakfast Sandwich

Serving size150g
Calories420
Total fat22g
of which saturated8g
Trans fat0g
Carbohydrate36g
Total sugars4g
Includes added sugars (Boone estimate)4g
Fibre3g
Protein21g
Sodium800mg

Nutrition figures are Starbucks US published data for one standard serving as sold. Starbucks publishes total sugar only, so added sugar is a Boone estimate. Boone converts the figures to the portion and age comparisons on this page.

Starbucks US Impossible Breakfast Sandwich contains 420 calories, which is 21% of the 2,000-calorie Daily Value used on US food labels. It provides 22g of total fat, of which 8g is saturated, 4g of total sugars (an estimated 4g added), 800mg of sodium, 21g of protein and 3g of fibre.

The saturated fat content of 8g represents 40% of the 20g Daily Value.

Starbucks US Impossible Breakfast Sandwich is built from 4 separately manufactured components. The plant-based breakfast patty alone carries 6 different classes of additive. Across the whole item the ingredient list names corn syrups and industrial sugars, thickeners and gums, flavourings, preservatives, acidity regulators, protein isolates and dough conditioners and enzymes. None of these add nutritional value. They exist to make food survive industrial production, storage and transport.

Starbucks US Impossible Breakfast Sandwich is high in sodium

Starbucks US Impossible Breakfast Sandwich contains 800mg of sodium, 35% of the 2,300mg adult daily limit and 53% of the 1,500mg limit for a child aged 4 to 8. The FDA treats 20% of the Daily Value or more in one serving as high.

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: Starbucks US Impossible Breakfast Sandwich

An estimated 4g of the 4g counts as added sugar, or about 1.0 teaspoons. None of it is naturally occurring.

Added sugars come from

  • sugar in the sesame ciabatta bun

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. Starbucks publishes total sugar only. Boone counts sugars, syrups, honey, malt and juice concentrates in the ingredient list as added, and the sugars in milk, cheese, whole fruit, 100% juice and vegetables as naturally occurring.

Ultra-processed food: what is really in it

Processing and additives: Starbucks US Impossible Breakfast Sandwich

Starbucks US Impossible Breakfast Sandwich is built from 4 separately manufactured components. Reading the ingredient list closely, it contains corn syrups and industrial sugars, thickeners and gums, flavourings, preservatives, acidity regulators, protein isolates and dough conditioners and enzymes. These are not there to add nutritional value. They make industrial production and distribution possible.

Corn syrups and industrial sugars

Sweeten, brown and keep bakes soft more cheaply than sugar alone. Found in the plant-based breakfast patty.

Thickeners and gums

Thicken and stabilise fillings, sauces and egg mixtures so they hold up through freezing, storage and reheating. Found in the fried egg patty and plant-based breakfast patty.

Flavourings

Add or restore taste lost during processing. Found in the plant-based breakfast patty.

Preservatives

Slow the growth of bacteria, yeasts and moulds, or stop fats going stale, in centrally prepared food. Found in the sesame ciabatta bun and plant-based breakfast patty.

Acidity regulators

Control sourness and keep fillings, sauces and cured meats stable on the shelf. Found in the fried egg patty and plant-based breakfast patty.

Protein isolates

Concentrated proteins extracted industrially to raise the protein count or build texture. Found in the plant-based breakfast patty.

Dough conditioners and enzymes

Speed up and standardise industrial dough so it behaves the same in every batch. Found in the sesame ciabatta bun.

Boone classifies Starbucks US Impossible Breakfast Sandwich 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, October 2026.

Starbucks US Impossible Breakfast Sandwich contains at least 43 distinct ingredients: 20 raw and 23 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: Starbucks US Impossible Breakfast Sandwich

What you orderRawManufacturedTotal% manufactured
Starbucks US Impossible Breakfast Sandwich on its own20234353%

The 23 manufactured ingredients

amylase, citric acid, cultured dextrose, cultured wheat starch, folic acid, methylcellulose, modified food starch, natural flavors, niacin, reduced iron, riboflavin, soy leghemoglobin, soy protein concentrate, soy protein isolate, thiamine mononitrate, vitamin b12, vitamin b2, vitamin b3, vitamin b6, vitamin c, vitamin e, yeast extract, zinc gluconate.

The 20 raw ingredients

cheese culture, coconut oil, durum wheat semolina, egg whites, egg yolks, eggs, enzymes, garlic powder, malted barley flour, milk, onion powder, paprika, pasteurized milk, salt, sesame seeds, sugar, sunflower oil, water, wheat flour, yeast.

What those ingredients are, by type

Vitamins and fortification12
Meat, fish, dairy and eggs5
Raising agents, yeast and cultures4
Preservatives and acidity regulators3
Grains and starches3
Oils and fats2
Herbs and spices2
Emulsifiers and thickeners2
Flavourings and extracts2
Fruit, vegetables, nuts and seeds2
Protein isolates2
Salt and minerals1
Colours1
Sugars and syrups1
Water1

Boone counts every distinct named ingredient on Starbucks’ published ingredient list, including sub-ingredients, and removes duplicates, so salt appearing in three components counts once. Raw covers whole foods and basic kitchen staples such as flour, milk, sugar, salt and oil. Manufactured covers substances that only exist as an output of industrial processing. Every figure here is a minimum.

Ingredients

Starbucks US Impossible Breakfast Sandwich is made from 4 components, all separately manufactured.

Ingredients by component: Starbucks US Impossible Breakfast Sandwich

Sesame ciabatta bun

Enriched Wheat Flour (Flour, Niacin, Reduced Iron, Thiamine Mononitrate, Riboflavin, Folic Acid), Water, Sesame Seeds, Eggs, Durum Wheat Semolina, Sugar, Sunflower Oil, Butter (Milk), Salt, Paprika, Malted Barley Flour, Yeast, Cultured Wheat Starch, Microbial Enzymes (Amylase).

Fried egg patty

Egg Whites, Egg Yolks, Milk, Food Starch- Modified, Salt, Citric Acid.

Plant-based breakfast patty

Water, Soy Protein Concentrate, Sunflower Oil, Coconut Oil, Citric Acid, Cultured Dextrose, Food Starch – Modified, Garlic Powder, Methylcellulose, Mixed Tocopherols (Vitamin E), Natural Flavors, Niacin (Vitamin B3), Onion Powder, Pyridoxine Hydrochloride (Vitamin B6), Riboflavin (Vitamin B2), Salt, Sodium Ascorbate (Vitamin C), Soy Leghemoglobin, Soy Protein Isolate, Spices, Vitamin B12, Yeast Extract, Zinc Gluconate.

Sharp cheddar cheese

Pasteurized Milk, Cheese Culture, Salt, Enzymes, Annatto (For Color).

Ingredients taken from the Starbucks US menu at starbucks.com, retrieved October 2026, for the standard recipe. Recipes change, so always check in store before ordering if you have an allergy.

Allergens at a glance

Starbucks US Impossible Breakfast Sandwich contains milk, eggs, tree nuts, wheat, soybeans, sesame and barley.

Allergen information: Starbucks US Impossible Breakfast Sandwich

AllergenStatus
MilkContains
EggsContains
FishNot declared
Crustacean shellfishNot declared
Tree nutsContains
PeanutsNot declared
WheatContains
SoybeansContains
SesameContains
Barley (UK declarable)Contains

Contains = declared in the Starbucks US allergen statement for this item or named in its ingredient list. Starbucks stores handle and warm food on shared equipment, 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 or allergen statement names them. Retrieved October 2026.

Frequently asked questions

How many calories are in a Starbucks US Impossible Breakfast Sandwich?+

Boone calculates that Starbucks US Impossible Breakfast Sandwich contains 420 calories, which is 21% of the 2,000-calorie Daily Value and 28% of the daily needs of a moderately active child aged 4 to 8.

How much added sugar is in a Starbucks US Impossible Breakfast Sandwich?+

Boone estimates that Starbucks US Impossible Breakfast Sandwich contains 4g of added sugar, about 1.0 teaspoons, which is 8% of the 50g FDA Daily Value. Starbucks publishes 4g of total sugar.

Is Starbucks US Impossible Breakfast Sandwich 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 an estimated 4g of added sugar, Starbucks US Impossible Breakfast Sandwich is within the per-meal limit for ages 11 and over but above the advice for children aged 10 and under.

How much saturated fat is in a Starbucks US Impossible Breakfast Sandwich?+

Starbucks US Impossible Breakfast Sandwich contains 8g of saturated fat. Boone calculates this as 40% of the 20g Daily Value and 47% of the 17g limit for a child aged 4 to 8.

Is Starbucks US Impossible Breakfast Sandwich ultra-processed?+

Boone classifies Starbucks US Impossible Breakfast Sandwich as NOVA group 4. Reading the published ingredient list, it contains corn syrups and industrial sugars, thickeners and gums, flavourings, preservatives, acidity regulators, protein isolates and dough conditioners and enzymes. NOVA group 4 describes how far a food is from its whole-food form, not how nutritious it is.

Is Starbucks US Impossible Breakfast Sandwich suitable for children?+

Boone’s analysis flags that its 800mg of sodium is 53% of the daily limit for a child aged 4 to 8; its estimated 4g of added sugar is above the Dietary Guidelines advice of no added sugar for children aged 10 and under. That does not make it off limits, but it does mean an Impossible Breakfast Sandwich uses up a large share of a young child’s day in one item.

How much protein is in a Starbucks US Impossible Breakfast Sandwich?+

Starbucks US Impossible Breakfast Sandwich contains 21g of protein, which Boone calculates as 42% of the 50g Daily Value.

How much sodium is in a Starbucks US Impossible Breakfast Sandwich?+

Starbucks US Impossible Breakfast Sandwich contains 800mg of sodium. Boone calculates that as 53% of the daily limit for a child aged 4 to 8 and 35% of the 2,300mg adult limit.

What allergens are in a Starbucks US Impossible Breakfast Sandwich?+

Starbucks US Impossible Breakfast Sandwich contains milk, eggs, tree nuts, wheat, soybeans, sesame and barley, according to Starbucks US published information. Food is handled on shared equipment, so always check in store if you have an allergy.