Starbucks Protein Coffee Drink Guide: Lattes and Matcha with Protein Cold Foam

Your best bet for protein is an iced matcha made with boosted milk, which carries 36 g per grande. Lattes made the same way run 27 to 29 g, and a foam topping adds roughly 15 g on top. The ranked table below compares grams and delivery-app prices, then food and bottled options follow.

36 gTop iced matcha
27 to 29 gLatte range
15 to 18 gFoam adds
$5.75+Cheapest
Vanilla Protein Latte

Top protein orders

Iced Protein Matcha

Iced Protein Matcha

$7.35+
Iced Caramel Protein Matcha

Iced Caramel Protein Matcha

$7.75+
Iced Vanilla Protein Latte

Iced Vanilla Protein Latte

$7.95+
Iced Sugar-Free Vanilla Protein Latte

Iced Sugar-Free Vanilla Protein Latte

$7.95+

Vanilla Protein Latte

$7.25+
Apples & Cheese Trio Protein Box

Apples & Cheese Trio Protein Box

$8.35+
Chicken Bacon Protein Pocket

Chicken Bacon Protein Pocket

$5.75+

Every Starbucks protein coffee drink gets its protein from one of two places: protein-boosted milk mixed into the latte, or a protein cold foam poured on top. A grande made with boosted milk carries about 27 to 36 grams of protein, and a cold foam drink carries about 19 to 26 grams. This guide ranks the drinks, explains both add-ons, covers the protein boxes and bottled shakes, and shows how to raise the protein in your own order.

Browse the full Starbucks menu if you want to see every other category.

Starbucks Protein Cold Foam and Protein-Boosted Milk Explained

Protein cold foam is a flavored cold foam made with whey protein, poured over a cold drink. Protein-boosted milk is 2% milk mixed with whey protein isolate and sunflower-derived lecithin, used in place of regular milk. Both launched on the Starbucks menu in late September 2025 in the U.S. and Canada.

Starbucks Protein Cold Foam and Protein-Boosted Milk Explained
DetailProtein cold foamProtein-boosted milk
What it isTopping for cold drinksReplacement for dairy milk
Protein addedAbout 15 to 18 gAbout 12 to 16 g in a grande
Reported priceAbout $2 extra, varies by storeAbout $1 extra, varies by store
Where it goesMost cold drinksMost hot and iced dairy drinks

The foam comes in banana, vanilla, sugar-free vanilla, chocolate, matcha, salted caramel and brown sugar, plus plain. Starbucks has also listed seasonal pumpkin and pecan versions. Drinks that include foam land at about 19 to 26 g of protein per grande, while the lattes with boosted milk reach 27 to 36 g.

Both add-ons use whey, which comes from milk. That makes them unsuitable for anyone who avoids dairy, and they are not vegan. The boosted milk is not sold on its own, and it cannot be added to drinks that arrive premade with 2% milk. Prices are reported figures from launch coverage and the Starbucks protein page, and they can change, so check the app. For the full list of toppings, see the cold foam flavors page.

High Protein Drinks at Starbucks Ranked by Grams per Grande

The highest-protein drinks at Starbucks are the iced protein matchas, with 36 g per grande, followed by the iced protein lattes at 29 g. The table below ranks the lineup by protein and adds the delivery-app starting price so you can see protein per dollar.

High Protein Drinks at Starbucks Ranked by Grams per Grande
DrinkProtein per grandeDelivery-app price
Iced Protein Matcha36 g$7.35+
Iced Sugar-Free Vanilla Protein Matcha36 g$7.95+
Iced Caramel Protein Matcha31 g$7.75+
Iced Vanilla Protein Latte29 g$7.95+
Iced Caramel Protein Latte29 g$7.75+
Iced Sugar-Free Vanilla Protein Latte29 g$7.95+
Protein Matcha28 g$6.85+
Caramel Protein Matcha28 g$7.25+
Vanilla Protein Latte27 g$7.25+
Caramel Protein Latte27 g$7.25+
Vanilla Protein Cream Cold Brew17 g$7.35+

The best value is the Iced Protein Matcha, which gives about 4.9 g of protein per dollar at the delivery-app price, against about 3.7 g for the hot Vanilla Protein Latte. Adding protein cold foam to any drink gives roughly 15 g on top of what it already has.

Low Calorie High Protein Starbucks Drinks

The sugar-free iced versions are the best fit. The Iced Sugar-Free Vanilla Protein Latte has 29 g of protein for about 200 calories, and the Iced Sugar-Free Vanilla Protein Matcha has 36 g for about 250 calories, both with no added sugar.

Another route is to add protein foam to a drink that starts low in calories, such as brewed coffee or a plain cold brew. The exact totals depend on the foam flavor, so use the app to check them before you pay. For wider comparisons, the calorie guide and the lower calorie drink ideas pages list lighter options across the menu.

How to Make Your Starbucks Order Higher in Protein

You can raise the protein in almost any order with two add-ons and a few smart swaps. Here is a simple order of steps:

  1. Start with a protein drink from Starbucks, or swap boosted milk into a dairy latte for about 12 to 16 g more.
  2. Add protein cold foam to a cold drink for about 15 g more, at roughly $2.
  3. Pick sugar-free vanilla syrup if you want to cut sugar without losing protein.
  4. Pair the drink with a protein box, a sandwich or a snack that lists 17 to 27 g.

Check the dairy note before you order. Boosted milk and protein foam both contain whey, so they are not for anyone who avoids milk, and Starbucks does not offer a plant-based version of either. The boosted milk replaces dairy milk, so it is not an option for a drink you order with a plant milk.

The add-on prices are reported averages and vary by store. The app will show the exact cost and protein before you pay.

Starbucks Protein Questions People Ask

How much protein is in a Starbucks protein latte?

A grande protein latte has 27 g of protein when it is hot and 29 g when it is iced. Protein matcha reaches 28 g hot and 36 g iced. Starbucks says amounts can vary because each drink is made by hand, so check the app for your size.

Which protein drink at Starbucks has the most protein?

The Iced Protein Matcha and the Iced Sugar-Free Vanilla Protein Matcha have the most, at 36 g per grande. The iced protein lattes follow at 29 g. Adding protein cold foam to another drink raises its total by about 15 g.

What is protein cold foam at Starbucks and how much does it add?

It is a cold foam made with whey protein, available in flavors such as vanilla, chocolate, matcha and salted caramel. It adds about 15 to 18 g of protein to a drink and costs about $2 extra. Drinks with foam land at 19 to 26 g per grande.

Is Starbucks protein-boosted milk safe for people avoiding dairy?

No. The milk is 2% milk mixed with whey protein isolate, both of which come from dairy. It is not suitable for a dairy allergy or a vegan diet. Starbucks does not offer a plant-based protein milk, so people avoiding dairy should look at bottled plant-based shakes instead.

Does Starbucks have a protein drink from the regular menu for a low sugar order?

Yes. The Iced Sugar-Free Vanilla Protein Latte has 29 g of protein, about 200 calories and 9 g of total sugar with none added. The Iced Sugar-Free Vanilla Protein Matcha has 36 g of protein and 12 g of sugar. Both are on the regular menu.

Can I add protein to a Starbucks Frappuccino or cold brew?

Cold brew, yes: protein cold foam goes on most cold drinks, and the Vanilla Protein Cream Cold Brew is already on the menu. Frappuccinos are a custom request that depends on the store, so ask the barista before you order.

How much extra do protein add-ons cost at Starbucks?

The foam is about $2 extra and protein-boosted milk is about $1 extra, according to launch coverage and the Starbucks protein page. Both vary by location and can change, so the app is the best place to see the exact total.

Is there a protein shake or smoothie at Starbucks?

There is no protein smoothie or made-to-order shake. You can buy bottled Koia Nutrition Shakes in cacao bean and vanilla bean, which are dairy-free. A bottled Coffee & Protein drink with 22 g of protein is also sold in grocery stores.

What are the Starbucks protein boxes and how much protein do they have?

The delivery menu lists the Apples & Cheese Trio Protein Box with 22 g of protein, holding Gouda, Colby Jack and aged Cheddar with apples and crackers. Other boxes with eggs or peanut butter appear when they are on the menu, so check your store.

Are Starbucks protein drinks available outside the U.S. and Canada?

Starbucks announced the protein lattes and cold foam for the U.S. and Canada. Other countries may have different menus or none of these drinks. If you are elsewhere, check the local Starbucks app before you plan an order around them.