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Starbucks US Iced Protein Matcha (Grande): calories, sugar and caffeine by portion, age and sex

Starbucks US Iced Protein Matcha (Grande), iced matcha latte with a milk foam top in a clear glass, nutrition and calories

Boone’s analysis puts Starbucks US Iced Protein Matcha (Grande) at 13% of an adult’s daily calories, 3.0 teaspoons of added sugar and 65mg of caffeine.

How many calories are in a Starbucks US Iced Protein Matcha (Grande)? It contains 260 calories, 4.5g of fat (2.5g saturated), an estimated 12g of added sugar and 135mg of sodium, plus 65mg of caffeine.

Build a full order with our nutrition calculator

Use the Boone meal calculator to see this drink 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 Iced Protein Matcha (Grande) fits into a day.

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Nutrition information

Nutrition information: Starbucks US Iced Protein Matcha (Grande)

Serving size16 fl oz
Calories260
Total fat4.5g
of which saturated2.5g
Trans fat0g
Carbohydrate25g
Total sugars23g
Includes added sugars (Boone estimate)12g
Fibre1g
Protein31g
Sodium135mg
Caffeine65mg

Nutrition figures are Starbucks US published data for the standard recipe in this size, including the default milk and toppings. 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 Iced Protein Matcha (Grande) contains 260 calories, which is 13% of the 2,000-calorie Daily Value used on US food labels. It provides 4.5g of total fat, of which 2.5g is saturated, 23g of total sugars (an estimated 12g added), 135mg of sodium, 31g of protein and 1g of fibre.

The saturated fat content of 2.5g represents 12% of the 20g Daily Value.

Starbucks US Iced Protein Matcha (Grande) is assembled from 3 separately manufactured components, combined at the point of sale. The classic syrup alone carries 3 different classes of additive. Across the whole drink the ingredient list names emulsifiers, flavourings, preservatives and acidity regulators. None of these add nutritional value. They exist to make components survive industrial production, storage and transport.

Starbucks US Iced Protein Matcha (Grande) is over the US per-meal added sugar limit

Starbucks US Iced Protein Matcha (Grande) contains an estimated 12g of added sugar, 1.2 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: Starbucks US Iced Protein Matcha (Grande)

An estimated 12g of the 23g counts as added sugar, or about 3.0 teaspoons. The other 11g is naturally occurring.

Added sugars come from

  • sugar in the classic syrup

Naturally occurring sugars come from

  • lactose in the milk
  • lactose in the protein powder

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 estimates the naturally occurring share from the milk in the recipe (about 1.3g of lactose per gram of milk protein, capped at the sugar in a plain latte of the same size) and counts sugars, syrups and juice concentrates as added.

Ultra-processed food: what is really in it

Processing and additives: Starbucks US Iced Protein Matcha (Grande)

Starbucks US Iced Protein Matcha (Grande) is assembled from 3 separately manufactured components, combined and served at the point of sale. Reading the ingredient list closely, it contains emulsifiers, flavourings, preservatives and acidity regulators. These are not there to add nutritional value. They make industrial production and distribution possible.

Emulsifiers

Keep fat and water mixed so sauces, creams and foams stay smooth. Found in the protein powder.

Flavourings

Add or restore taste lost during processing. Found in the classic syrup.

Preservatives

Slow the growth of bacteria, yeasts and moulds, or stop fats going stale, in centrally prepared components. Found in the classic syrup.

Acidity regulators

Control sourness and keep syrups and bases stable on the shelf. Found in the classic syrup.

Boone classifies Starbucks US Iced Protein Matcha (Grande) 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 Iced Protein Matcha (Grande) contains at least 8 distinct ingredients: 4 raw and 4 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 Iced Protein Matcha (Grande)

What you orderRawManufacturedTotal% manufactured
Starbucks US Iced Protein Matcha (Grande) on its own44850%

The 4 manufactured ingredients

citric acid, natural flavors, potassium sorbate, sunflower lecithin.

The 4 raw ingredients

ground green tea, milk, sugar, water.

What those ingredients are, by type

Preservatives and acidity regulators2
Meat, fish, dairy and eggs1
Emulsifiers and thickeners1
Sugars and syrups1
Water1
Flavourings and extracts1
Coffee, tea and cocoa1

Boone counts every distinct named ingredient on Starbucks’ published component lists, including sub-ingredients, and removes duplicates, so sugar appearing in three syrups counts once. Ice and water added at the counter are not counted. Raw covers whole foods and basic kitchen staples such as 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 Iced Protein Matcha (Grande) is made from 5 components, 3 of them separately manufactured.

Ingredients by component: Starbucks US Iced Protein Matcha (Grande)

Milk

Milk.

Ice

Ice.

Protein powder

Whey Protein Isolate (Milk), Sunflower Lecithin.

Classic syrup

Sugar, Water, Natural Flavors, Potassium Sorbate, Citric Acid.

Matcha

Ground Green Tea.

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

Allergens at a glance

Starbucks US Iced Protein Matcha (Grande) contains milk.

Allergen information: Starbucks US Iced Protein Matcha (Grande)

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

Contains 65mg of caffeine. Contains = named in the Starbucks US ingredient list for the standard recipe; Starbucks does not publish a separate allergen statement for most drinks. Starbucks prepares drinks with shared equipment, so no drink can be guaranteed allergen free, and changing the milk or adding toppings changes the allergens. UK rules also require barley, oats, mustard, celery and sulphites to be declared; these are shown where the ingredient list names them. Retrieved October 2026.

Frequently asked questions

How many calories are in an Starbucks US Iced Protein Matcha (Grande)?+

Boone calculates that Starbucks US Iced Protein Matcha (Grande) contains 260 calories, which is 13% of the 2,000-calorie Daily Value and 17% of the daily needs of a moderately active child aged 4 to 8.

How much added sugar is in an Starbucks US Iced Protein Matcha (Grande)?+

Boone estimates that Starbucks US Iced Protein Matcha (Grande) contains 12g of added sugar, about 3.0 teaspoons, which is 24% of the 50g FDA Daily Value. Starbucks publishes 23g of total sugar.

How much caffeine is in an Starbucks US Iced Protein Matcha (Grande)?+

Starbucks lists 65mg of caffeine for Starbucks US Iced Protein Matcha (Grande). That is 16% of the 400mg a day the FDA cites as an amount not generally linked with negative effects in healthy adults. Pregnancy guidance is 200mg a day, and the American Academy of Pediatrics advises against caffeine for children.

How does Iced Protein Matcha compare across sizes?+

Starbucks US Iced Protein Matcha by size: Tall: 150 calories, an estimated 4g of added sugar, 35mg of caffeine; Grande: 260 calories, an estimated 12g of added sugar, 65mg of caffeine; Venti: 420 calories, an estimated 21g of added sugar, 95mg of caffeine. Figures are for the standard recipe.

Is Starbucks US Iced Protein Matcha (Grande) 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 12g of added sugar, Starbucks US Iced Protein Matcha (Grande) is over both.

How much saturated fat is in an Starbucks US Iced Protein Matcha (Grande)?+

Starbucks US Iced Protein Matcha (Grande) contains 2.5g of saturated fat. Boone calculates this as 12% of the 20g Daily Value and 15% of the 17g limit for a child aged 4 to 8.

Is Starbucks US Iced Protein Matcha (Grande) ultra-processed?+

Boone classifies Starbucks US Iced Protein Matcha (Grande) as NOVA group 4. Reading the published ingredient list, it contains emulsifiers, flavourings, preservatives and acidity regulators. NOVA group 4 describes how far a food is from its whole-food form, not how nutritious it is.

Is Starbucks US Iced Protein Matcha (Grande) suitable for children?+

Boone’s analysis flags that its estimated 12g of added sugar is above the Dietary Guidelines advice of no added sugar for children aged 10 and under; it contains 65mg of caffeine, which the American Academy of Pediatrics advises against for children. That does not make it off limits, but it does mean an Iced Protein Matcha (Grande) uses up a large share of a young child’s day in one drink.

How much protein is in an Starbucks US Iced Protein Matcha (Grande)?+

Starbucks US Iced Protein Matcha (Grande) contains 31g of protein, which Boone calculates as 62% of the 50g Daily Value.

How much sodium is in an Starbucks US Iced Protein Matcha (Grande)?+

Starbucks US Iced Protein Matcha (Grande) contains 135mg of sodium. Boone calculates that as 9% of the daily limit for a child aged 4 to 8 and 6% of the 2,300mg adult limit.