Quick Answer
Dunkin officially launched a national protein drink platform built around a new dairy based Protein Milk that adds 15 grams of protein to any medium drink for a one dollar upcharge. The launch menu pairs the milk with espresso, matcha, and refresher bases, including four signature builds created with the boutique fitness studio solidcore.
It is Dunkin's answer to Starbucks Protein Lattes, and the upcharge is roughly half the price.
Dunkin Protein Milk explained
The new Protein Milk is the centrepiece. It is a dairy milk fortified with whey protein isolate that blends smoothly into hot espresso, iced coffee, matcha, and even Refreshers without turning chalky or gritty. A medium drink with Protein Milk picks up 15 grams of complete protein for an extra one dollar at checkout.
That is a much lighter lift than the typical "add a scoop" hack people were doing at home, which usually produced a foamy plug at the bottom of the cup.
The launch menu
- Caramel Chocolate Coconut Protein Latte. 15 grams protein, 290 calories in a medium. Sweet, dessert leaning espresso with caramel, mocha, and toasted coconut notes.
- Almond Iced Protein Matcha Latte. 15 grams protein, 260 calories. Stone ground matcha blended with Protein Milk and a touch of toasted almond syrup. The cleanest tasting of the launch line.
- Megan's Mango Protein Daydream Refresher. 11 grams protein. A solidcore signature that mixes mango refresher base with Protein Milk for a bright, tropical sip with the texture of a smoothie.
- Vanilla Blueberry Iced Coffee with Protein Milk. 3 grams protein, 40 calories. The low calorie pick, sweetened with sugar free vanilla and a splash of blueberry flavour.
The solidcore collaboration
solidcore, the high intensity Pilates style chain with locations across the US, partnered with Dunkin to develop the launch recipes. The link makes sense: solidcore members are exactly the demographic who already order black iced coffee on the way to a 6am class. Giving them a 15 gram protein add-on for a dollar makes the morning stop functional instead of indulgent.
How it compares
| Drink (medium / Grande) | Protein | Calories | Sugar (g) |
|---|---|---|---|
| Dunkin Caramel Chocolate Coconut Protein Latte | 15 g | 290 | 28 |
| Dunkin Almond Iced Protein Matcha Latte | 15 g | 260 | 21 |
| Starbucks Caramel Protein Latte (Grande) | 27 g | 280 | 22 |
| Starbucks Protein Matcha Latte (Grande) | 30 g | 270 | 21 |
The headline difference is protein density. Starbucks delivers nearly double the protein per cup because its Protein-boosted Milk carries roughly 27 grams per 16 oz base, where Dunkin's Protein Milk adds 15 grams as an upgrade. Dunkin wins on price, Starbucks wins on macros.
How to add Protein Milk to your usual order
You do not have to order one of the signature builds. The Protein Milk swap is available on the full menu through the app. Order your normal medium iced coffee, then in the customisation panel select Protein Milk as the milk choice. The app shows the updated nutrition info before you pay.
- Iced latte plus Protein Milk: roughly 17 grams protein.
- Matcha latte plus Protein Milk: roughly 15 grams protein.
- Cold brew with cream swap to Protein Milk: roughly 14 grams protein.
Who should pay the extra dollar?
Anyone who skips breakfast and uses coffee to bridge to lunch. Anyone on a GLP-1 medication where protein hits the daily target are harder to clear. And anyone using Dunkin as a post workout stop where you would otherwise pick up a separate protein shake. Skip the upgrade if you only drink black coffee, or if you already eat a high protein breakfast at home.
FAQs about Dunkin protein drinks
Is Protein Milk available in all sizes?
Yes. The 15 gram figure is calibrated to a medium. Small drinks pick up around 12 grams; large drinks around 18 grams.
Is it lactose free?
No. Protein Milk is dairy based and contains lactose. Dunkin does not currently offer a plant based protein milk option.
Will it taste different from regular milk?
It is slightly thicker with a faint sweetness from the whey, but the difference is subtle in flavoured drinks. In a plain iced coffee you may notice a creamier mouthfeel.
Does Protein Milk add carbs?
Yes, a small amount. The natural lactose in the milk plus the whey adds roughly 6 to 8 grams of carbs per medium. Not enough to break most low carb plans.
The takeaway
Dunkin's protein platform is the right move at the right price. Fifteen grams of clean whey protein, one dollar, full menu compatibility. It will not replace a Premier Protein shake for hardcore lifters, but for the rest of us who want our morning coffee to do double duty, it is the easiest macro upgrade in the drive thru.
The morning drive-thru play
Dunkin's loyalty pricing makes the protein upgrade even better when stacked with the rewards program. Use the app to order a medium iced latte with Protein Milk, apply a free drink reward when one is available, and you can end up paying close to nothing for what would otherwise be a 6 dollar shake. The drive-thru speed advantage over Starbucks (Dunkin is consistently faster at peak hours according to QSR magazine surveys) makes it a strong daily commute pick.
Pairing with the Dunkin food menu
A medium Almond Iced Protein Matcha with a Sourdough Breakfast Sandwich clears roughly 35 grams of protein and 580 calories total, which lands close to a balanced breakfast macro split. Skip the donut pairing if you are using the drink as a workout fuel; the sugar dump cancels most of the protein advantage.
What is coming next
Dunkin has signalled that a plant based Protein Milk and additional flavoured builds are in development. If the launch month sales tracking is strong, expect the protein platform to expand the same way the espresso menu did between 2018 and 2023.
FAQ extras
Can I get Protein Milk in coffee that comes with cream?
Yes. Order the standard build with cream and ask to swap the cream for Protein Milk in the customisation panel. The drink will be slightly less rich than with cream but picks up the full 15 gram protein bump.
Is there a Protein Refresher I can order daily?
The Mango Daydream is the most balanced; Strawberry and other refresher bases also accept the protein milk swap through the app.
When was the protein platform launched?
Dunkin began testing protein milk in select markets in late 2025 and rolled out the full national protein platform in spring 2026.
