Enjoy a nutrient-packed, vegan Acai Blackberry Smoothie—rich in antioxidants, fiber and Omega-3s. Ready in about five minutes, this makes a quick, healthy breakfast or post-workout boost.

Lately I’ve been experimenting with blackberries in everything from savory dishes to sweets. Their bright flavor and deep color pair especially well with acai, creating a smoothie that tastes indulgent but is actually full of healthful ingredients. If you enjoy trying new combinations, blackberries are a versatile fruit that work beautifully in tacos, guacamole, cornbread and, of course, smoothies.

This Acai Blackberry Smoothie blends frozen blackberries and frozen acai for a concentrated antioxidant punch. I also add ground flaxseed for a boost of fiber and plant-based Omega-3s, plus a banana and almond milk for creaminess. The result is a naturally sweet, slightly tart smoothie that’s vegan, gluten-free and simple to prepare.

Blackberries are high in antioxidants and fiber; in many comparisons they measure equal to or higher than other common berries. Combined with acai, which is prized for its antioxidant content, this smoothie delivers a concentrated serving of berry goodness in one glass.

What You’ll Need
- ½ cup frozen blackberries
- 3.5 oz frozen acai (single frozen packet or equivalent)
- 1 banana (fresh or frozen)
- ¾ cup almond milk (or other plant milk)
- ½ tsp ground cinnamon
- 2 tbsp flax seed (ground flax works best)
How To Make It
1. Add all ingredients to a blender: frozen blackberries, frozen acai, banana, almond milk, cinnamon and flaxseed.

2. Blend on high until the mixture is completely smooth and creamy. If the smoothie is too thick, add a splash more almond milk; if too thin, add a few ice cubes or a bit more frozen fruit and blend again.

This recipe yields one 16 oz smoothie—perfect for a quick breakfast or a nutritious snack. It’s creamy, vibrant in color and full of natural berry flavor without added sweeteners.

Because the recipe relies on whole-food ingredients, it’s naturally vegan and gluten-free. The flaxseed provides plant-based Omega-3s and additional fiber, making this smoothie more satisfying and heart-healthy than a standard fruit drink.

Tips, Variations and Storage
- Acai note: Acai often comes in frozen packets. Break the packet into chunks or run it briefly under warm water to loosen before adding to the blender.
- Sweetness: The banana adds natural sweetness; if you prefer a sweeter drink, add a Medjool date or a touch of maple syrup.
- Protein boost: For extra protein, add a scoop of plant-based protein powder or a spoonful of nut butter.
- Substitutions: Swap almond milk for oat or soy milk. Chia seeds can replace some or all of the flaxseed if desired.
- Make ahead: You can prepare the dry mix (berries, acai, flax, cinnamon) and freeze it in a single bag. In the morning, just add banana and milk and blend.
- Storage: Smoothies are best enjoyed immediately, but you can refrigerate in an airtight container for up to 24 hours; shake or re-blend before serving.
Recipe Details
Recipe: Acai Blackberry Smoothie
Servings: 1 smoothie (16 oz)
Prep Time: 5 minutes
Total Time: 5 minutes
Author: Whitney Bond
Ingredients
- ½ cup frozen blackberries
- 3.5 oz frozen acai
- 1 banana
- ¾ cup almond milk
- ½ tsp ground cinnamon
- 2 tbsp flax seed (ground)
Instructions
- Add all ingredients to a blender.
- Blend until smooth, adjusting liquid or frozen ingredients for your preferred thickness.
- Pour into a glass and enjoy immediately.
Nutrition Facts (approx.)
- Calories: 331 kcal
- Carbohydrates: 53 g
- Protein: 7 g
- Fat: 11 g
- Sodium: 255 mg
- Potassium: 701 mg
- Fiber: 13 g
- Sugar: 28 g
- Vitamin A: 355 mg
- Vitamin C: 27.1 mg
- Calcium: 335 mg
- Iron: 2.2 mg
If you enjoyed this Acai Blackberry Smoothie, try swapping in different berries or adding a handful of greens for a nutrient-dense variation. Small changes can tailor the flavor and nutrition to your taste while keeping preparation quick and simple.