High-Protein Keto Coffee Smoothie
High-Protein Keto Coffee Smoothie
Creamy coffee smoothie with a protein boost — low-carb, sugar-free, and ready in 2 minutes
This high-protein keto coffee smoothie tastes like a blended iced latte with extra staying power. Coffee, protein powder, milk, and a spoon of peanut butter blend into a thick, frosty drink that delivers 28 g of protein and only 3 g net carbs per serving while staying fully sugar-free.
Low-carb, sugar-free, and perfect for breakfast or an afternoon pick-me-up.
Why you’ll love this smoothie
- 28g protein per serving
- Only 3g net carbs and fully sugar-free
- Real coffee flavor in a creamy blended drink
- Ready in about 2 minutes
- Filling enough for breakfast
- Easy to customize with peanut butter or extra ice
Health notes
- High protein: Protein powder plus milk and peanut butter deliver a solid boost.
- Low carb: Unsweetened coffee and milk keep net carbs low.
- Sugar-free: No added sugar — use a sugar-free sweetener if needed.
- Caffeine + protein: A useful combo for mornings or post-workout.
Key element — use cold coffee and plenty of ice
Cold coffee (or cooled espresso) plus ice gives the smoothie a thick, frosty texture instead of a thin, watery drink.
Ingredients
Smoothie (1 serving)
- ½–¾ cup cold brewed coffee or cooled espresso
- ½ cup unsweetened almond milk (or milk of choice)
- 1–1½ scoops vanilla or chocolate protein powder
- 1 Tbsp natural peanut butter (or almond butter)
- 1 cup ice
- Optional: 1–2 tsp powdered sugar-free sweetener
- Optional: 1 Tbsp heavy cream for extra richness
- Optional: pinch of cinnamon or cocoa powder
Swaps
- Higher protein: Use 1½–2 scoops protein powder and a splash more milk if needed.
- Dairy-free: Use almond milk and a plant-based protein powder.
- No peanut butter: Use almond butter or skip the nut butter and add extra cream.
- Decaf: Use decaf coffee or espresso.
Instructions
| 1 | Add ingredients. Pour the cold coffee, almond milk, protein powder, peanut butter, ice, and optional sweetener or cream into a blender. |
| 2 | Blend. Blend 20–40 seconds until thick, frosty, and smooth. Scrape down the sides if needed and blend again. |
| 3 | Adjust. If it’s too thick, add a splash of milk. If it’s too thin, add a few more ice cubes and blend again. |
| 4 | Serve. Pour into a tall glass and drink immediately. Top with a pinch of cinnamon or a few crushed almonds if desired. |
Pro tips
- Use leftover cold brew or freeze leftover coffee in ice cube trays for extra flavor.
- A frozen banana is not used here because it raises carbs — ice plus cream keeps it thick and keto-friendly.
- Blend the protein powder with the liquid first if your blender leaves clumps.
- Peanut butter adds body and helps the smoothie stay filling.
- Drink right away — the texture is best freshly blended.
Nutrition
| Nutrient | Per serving |
|---|---|
| Calories | 240 |
| Protein | 28g |
| Net carbohydrates | 3g |
| Total carbohydrates | 5g |
| Fiber | 2g |
| Total fat | 11g |
| Sodium | 210mg |
Estimates based on unsweetened almond milk, protein powder, peanut butter, and coffee. Exact numbers vary with protein powder brand and nut butter amount.
Variations
Mocha
Add 1 tsp unsweetened cocoa powder and a little extra sweetener if needed.
Vanilla latte
Use vanilla protein powder and skip the peanut butter.
Cinnamon coffee
Add ¼–½ tsp cinnamon before blending.
Extra thick
Use coffee ice cubes instead of regular ice.
Storage
| Method | Time | Notes |
|---|---|---|
| Best served | Immediately | Texture is best right after blending |
| Refrigerator | Up to 24 hours | Shake or re-blend before drinking |
| Freezer | Up to 1 month | Freeze in ice cube trays and re-blend with a splash of milk |
FAQ
Test your knowledge
5 quick questions about this keto coffee smoothie
1. Protein per serving?
2. Net carbs per serving?
3. Why use cold coffee instead of hot?
4. About how long does this take?
5. Best time to drink it?
