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Blueberry Banana Smoothie Recipe: How To Make It Fast, Easy & High in Protein

Blueberry Banana Smoothie Recipe: How To Make It Fast, Easy & High in Protein

Key Takeaways (TL;DR)

  • What It Is: This blueberry banana smoothie recipe produces a thick, creamy drink that pairs the deep, antioxidant-rich flavor of blueberries with the natural sweetness of ripe banana - one of the fastest ways to get real fruit into your morning.

  • Prep Time: 3 minutes | Blend Time: 1 minute | Total: ~5 minutes

  • Servings: 1 large glass (~400ml)

  • Difficulty: Easy / Beginner-friendly

  • Dietary Notes: Gluten-free / Easily made dairy-free or vegan

  • Best For: Breakfast, post-workout recovery

  • Key Tip: Use frozen blueberries and at least half a frozen banana - frozen fruit replaces ice and gives you a thicker, colder smoothie without watering down the flavor.

  • Want It in 30 Seconds? If prepping, blending, and cleaning isn't your idea of a morning routine, kencko's Purples sachet delivers freeze-dried blueberries, banana, blackberries, strawberries, raspberries, cranberries, dates, and apple fiber - nothing added. Mix with water or milk in a shaker bottle and you have half your daily fruit and vegetable intake in under 30 seconds.

Blueberry Banana Smoothie at a Glance

Main Fruits
Blueberries, banana — fresh or frozen (frozen recommended)
Base Liquid
Almond milk or oat milk — almond milk keeps it lighter; oat milk makes it creamier
Optional Add-Ins
Greek yogurt, protein powder, chia seeds, spinach, honey, nut butter
Key Equipment
Blender + shaker bottle
Texture
Thick and creamy with frozen fruit; lighter and more drinkable with fresh fruit
Dominant Flavor
Sweet and berry-forward with a naturally creamy finish from the banana
Top Tip
Add liquid first — it creates the vortex that pulls everything into the blades evenly pro tip
Common Mistake
Adding ice instead of frozen fruit — ice dilutes the flavor and makes the smoothie watery
Best Time to Drink
Breakfast or within 30–60 minutes after a workout
Pairs Well With
Overnight oats, a handful of almonds, whole grain toast with nut butter
kencko Alternative
Purples — blueberries, banana, blackberries, raspberries, cranberries, strawberries, dates & apple fiber. No blender. No freezer. 30 sec

 

No blender needed
Same fruit.
Ready in 30 seconds.
kencko Purples is freeze-dried blueberries, banana, blackberries, strawberries, raspberries, cranberries, dates, and apple fiber — nothing else. Add 250–300ml of water or oat milk. Shake. Done.
Try kencko Purples From $2.81/serving · Cancel anytime
30s
to ready

 

In a Rush? Follow This Blueberry Banana Smoothie Prep Checklist

No time to read the full recipe? 

 

Pick your path below - the 30-second kencko route or the 5-minute homemade route - and follow the steps in order.

Smoothie ready 0%
🎉 Done!
Path 1 · Fastest
kencko Purples
Ready in 30 seconds
0 / 6
No blender. No chopping. No cleanup.
Grab your kencko Purples sachet — from a kitchen cabinet, desk drawer, or gym bag. No fridge or freezer needed.
Add 250–300ml of cold liquid to your shaker bottle — water, oat milk, almond milk, or coconut water. Cold liquid gives the best texture.
Pour the Purples sachet into the bottle — blueberries, banana, blackberries, strawberries, raspberries, cranberries, dates, and apple fiber. Freeze-dried, nothing else.
Cap the shaker bottle firmly.
Shake for 10–15 seconds.
Done. One sachet = 50% of your recommended daily fruit and vegetable intake.
Path 2 · Full recipe
Homemade Blueberry Banana
Ready in under 5 minutes
0 / 25
Getting Your Ingredients Ready
Blueberries: Measure 1 cup (about 150g). If using frozen, measure straight from the bag — no prep needed.
Banana: Peel 1 medium banana and slice into coins. For a thicker result, use a previously frozen banana.
Greek yogurt (optional): Measure 100g and set aside — adds protein and creaminess.
Base liquid measured and ready — 200ml almond milk works well; oat milk makes it richer; water keeps it light.
Optional add-ins portioned out — 1 tbsp chia seeds, 1 scoop protein powder if using.
Blender Setup
Blender is clean and assembled.
Lid is within reach before you start pouring.
Pour liquid into the blender first — start with 150ml and adjust after blending.
Add banana slices next, then blueberries.
Add dense or fibrous ingredients last — Greek yogurt, protein powder, or chia seeds go on top.
Blending
Lid is secured firmly before switching on.
Start on low for 10 seconds, then increase to high.
Blend for 45–60 seconds until smooth.
If using frozen blueberries, blend an extra 10–15 seconds so the skins break down fully.
Check for unblended chunks by tilting the jar — blend another 10 seconds if needed.
Taste & Adjust
Taste before adding anything — a ripe banana should make this sweet enough without added honey.
Too thick? Add liquid in 30ml increments and pulse briefly.
Too thin? Add half a frozen banana or a tablespoon of rolled oats.
Too tart? Blueberries can run sour — add a few extra banana slices or half a teaspoon of honey.
Not sweet enough? A Medjool date blended in works better than sugar here.
Serve & Store
Pour into a glass or wide-mouth jar immediately for best texture.
Top with fresh blueberries, chia seeds, or a dusting of cinnamon if serving to guests.
Drinking later? Seal the jar and refrigerate — drink within 24 hours.
Give it a shake before drinking if stored — separation is normal.
Rinse the blender immediately — blueberry residue stains plastic and silicone if left to dry.

 

 

Before You Start: What You Need to Know

1. Ingredients

Core Ingredients

This blueberry banana smoothie recipe keeps the ingredient list short on purpose. The goal is a smoothie you can actually make on a busy morning - not one that requires a pantry audit first.

 

Each ingredient below has a clear job: the banana provides creaminess and natural sweetness, the blueberries contribute flavor and antioxidants, the liquid controls consistency, and the yogurt (if using) adds protein and body.

 

All quantities below are for 1 serving. If you're making this for two people, double everything.

Ingredient
Quantity
Notes
Substitution
Blueberries
1 cup (~150g)
Frozen preferred for thickness; fresh works if very ripe
Blackberries or mixed berries for a deeper flavor
Banana
1 medium (~120g)
Ripe with brown spots — naturally sweeter and easier to blend
Half an avocado for creaminess without sweetness
Almond milk
200ml
Unsweetened; keeps calorie count low
Oat milk (creamier), coconut milk (richer), water (lightest)
Greek yogurt optional
100g
Full-fat or low-fat both work; adds ~10g protein
Vegan yogurt, silken tofu, or omit entirely

Optional Add-Ins

The base recipe is complete without any of these, but add-ins are where the blueberry banana smoothie shifts from a simple fruit drink to something more purposeful. 

 

If you're drinking this as breakfast, adding protein and fat (yogurt, nut butter, chia seeds) makes it significantly more filling and helps prevent mid-morning hunger. If it's a post-workout drink, protein powder is the most efficient addition.

 

Start with one add-in at a time rather than layering several at once. That way you can track what's actually changing the flavor or texture before committing to a new combination.

  • Protein powder (1 scoop): Adds 20-25g protein. Unflavored or vanilla works best - berry-flavored powders can clash with the blueberry. Expect a slightly thicker texture.

  • Chia seeds (1 tbsp): Adds 2g protein, 4g fiber, and a subtle gel-like texture after blending. Nutritional benefit is highest when blended, not stirred in after.

  • Spinach (1 handful, ~30g): Disappears almost entirely behind the blueberry and banana flavors. Start here if you're new to adding greens.

  • Honey (1 tsp): Add only after tasting - a ripe banana and sweet blueberries usually make this unnecessary.

  • Almond butter (1 tbsp): Adds healthy fats and a subtle nuttiness. Pairs particularly well with blueberries. Adds ~100 kcal.

  • Rolled oats (2 tbsp): Makes the smoothie more filling and slower-digesting. A good option if this is replacing a full breakfast.

  • Lemon juice (1 tsp): A small squeeze brightens blueberry flavor and brings out the tartness - useful when blueberries are out of season and taste flat.

Best Ingredient Substitutions

Substitutions matter most when a key ingredient is unavailable, out of season, or doesn't fit a dietary requirement. 

 

The table below covers the most common swap scenarios, with honest notes on how each one changes the final result. None of these substitutions break the recipe; most produce a slightly different but equally good drink.

 

The most impactful swap is also the most counterintuitive: replacing fresh blueberries with frozen ones actually improves the smoothie in most cases, producing a thicker, colder, and more concentrated result.

 

Fresh vs. Frozen Fruit

Frozen blueberries produce a thicker, colder smoothie and concentrate the berry flavor.

 

They're also often more nutritious than fresh supermarket blueberries, since they're typically picked and frozen at peak ripeness rather than harvested early for transport. Fresh blueberries work well too, particularly when they're in season and fully ripe.

 

The real mistake most people make is adding ice instead of frozen fruit. Ice dilutes the flavor as it melts and leaves you with a thinner, less satisfying drink.

 

If you'd rather skip the freezer entirely, kencko's freeze-dried Purples sachets contain blueberries, banana, blackberries, strawberries, raspberries, cranberries, dates, and apple fiber - shelf-stable for up to 12 months and ready in 30 seconds. No freezer, no thawing, no prep.

 

2. Nutrition Facts

Per serving (~400ml), based on: 1 cup frozen blueberries, 1 medium banana, 200ml unsweetened almond milk, no yogurt. The quantities below are calibrated for one person - no halving required.

 

It's also worth comparing the homemade version against kencko's Purples sachet, since the two serve a similar purpose but differ in calorie load, sugar content, and micronutrient profile. Both options are covered in the table below.

Missing Ingredient
Best Swap
How It Changes the Result
Banana
Half an avocado + 1 tsp honey
Creamier texture, less sweet, higher in fat
Fresh blueberries
Frozen blueberries
Thicker, colder, more concentrated flavor — often better
Greek yogurt
Silken tofu
Near-identical creaminess, slightly less tangy
Almond milk
Coconut water
Lighter, adds natural electrolytes, less creamy
Protein powder
100g cottage cheese
Similar protein hit; blends smooth in high-speed blenders
Blueberries (out entirely)
Mixed berries or blackberries
Darker color, slightly more tart, similar antioxidant profile

Homemade vs. kencko Purples: Nutrition Side by Side

The homemade blueberry banana smoothie uses more total fruit volume, a full banana plus a cup of blueberries, which is why its calorie and sugar counts are higher.

 

The kencko Purples sachet is a concentrated freeze-dried blend of blueberries, banana, blackberries, strawberries, raspberries, cranberries, dates, and apple fiber; when mixed with 250-300ml of water it delivers a lighter calorie profile with no added sugar and meaningful fiber from whole fruit. 

 

Mixed with oat milk, the totals rise slightly but stay well below the homemade version. Both contain only real fruit and vegetables - the difference is blend composition, volume, and convenience.

Nutrient
Homemade (1 serving, ~400ml)
kencko Purples (1 sachet, 18g)
Calories
~175 kcal
58 kcal
Total Fat
~1.5g
0g
Cholesterol
0mg
0mg
Sodium
~90mg
0mg
Total Carbohydrate
~42g
11g
Dietary Fiber
~6g
2.8g
Total Sugars
~26g
9.4g
Added Sugars
0g
0g
Protein
~2g
1g
Vitamin C
~24mg (27% DV)
18mg (22% DV)
Potassium
~540mg (11% DV)
219mg (11% DV)
Iron
~1mg (6% DV)
0.54mg (4% DV)

Homemade estimates based on USDA FoodData Central values: 1 cup frozen blueberries, 1 medium banana, 200ml unsweetened almond milk - quantities for 1 person, no yogurt. kencko Purples figures are taken directly from the product nutrition label (1 packet, 22g). Figures vary with liquid choice and exact quantities.

 

The homemade version delivers more potassium and calcium per serving (mostly from the larger banana portion and the calcium-fortified almond milk). The kencko Purples sachet delivers a comparable Vitamin C hit at less than half the calories and sugar, plus 3g of fiber from whole fruit - a better fit for anyone watching their carbohydrate intake or looking for a lighter option without skipping daily fruit and vegetable intake. Neither contains added sugars.

 

kencko Purples · Per Sachet
The numbers,
without the blender.
100% freeze-dried fruit. Nothing else in the sachet — no preservatives, no thickeners, no added anything. Just add 250–300ml of your liquid of choice and shake.
Get the numbers IRL
58 kcal
Per sachet with water
0g
Added sugars
50%
Daily fruit & veg
30s
Total prep time

 

How Homemade Nutrition Changes with Add-Ins

The base recipe is a solid starting point, but the right add-in can shift the smoothie significantly toward a specific goal - more protein for post-workout recovery, more fiber for gut health, or more fat to slow digestion and increase satiety.

 

The table below shows the practical impact of the most common additions, so you can build a version that fits your needs without guesswork:

Add-In
Calories Added
Protein Added
Notable Change
Greek yogurt (100g)
+59 kcal
+10g
Creamier texture, tangy finish, higher protein
Protein powder (1 scoop)
+120 kcal
+25g
Thicker consistency, significantly more filling
Chia seeds (1 tbsp)
+58 kcal
+2g
Added fiber and omega-3s; slight gel texture
Oat milk (vs. almond milk)
+50 kcal
+1g
Creamier, mild oat flavor, slightly higher carbs
Honey (1 tsp)
+21 kcal
0g
Sweeter; no significant texture change
Spinach (1 handful)
+7 kcal
+1g
Minimal flavor change; adds iron and folate
Almond butter (1 tbsp)
+98 kcal
+3g
Richer, nuttier flavor; more satiating
Rolled oats (2 tbsp)
+55 kcal
+2g
More filling; thicker; slower energy release

3. Health Benefits of a Blueberry Banana Smoothie

A blueberry banana smoothie made from whole fruit covers more nutritional ground than most people expect. Blueberries are one of the most-studied fruits in the world for their polyphenol content, and bananas bring a distinct set of nutrients on their own. 

 

Here's what the research actually shows:

 

Benefit 1 - Rich in Antioxidants That Support Brain Health

Blueberries contain some of the highest levels of anthocyanins, a class of plant pigments responsible for their deep blue color, of any commonly consumed fruit. 

 

A 2019 randomized controlled trial published in the European Journal of Nutrition found that daily consumption of wild blueberry juice was associated with improvements in memory and attention in older adults with mild cognitive decline (source). Anthocyanins cross the blood-brain barrier and accumulate in regions of the brain involved in learning and memory.

 

Pairing blueberries with a banana adds vitamin B6, which supports neurotransmitter production. A single healthy blueberry smoothie built around these two ingredients delivers a meaningful dose of both.

 

Benefit 2 - Good Source of Vitamin C

One cup of blueberries contains around 14mg of Vitamin C, while one medium banana adds another 10mg. Greek yogurt as an add-in doesn't contribute Vitamin C, but swapping in a handful of strawberries (making this a strawberry blueberry banana smoothie) can push the total well over 50% of the daily recommended intake. Vitamin C plays a central role in immune function, collagen synthesis, and non-heme iron absorption.

 

Vitamin C is heat-sensitive and degrades quickly once fruit is cut. Blending is gentler than cooking, so most of the Vitamin C survives the process - but over-blending at high speeds generates enough heat to cause some loss. Keeping blend time under 60 seconds helps preserve the full nutrient content.

 

Benefit 3 - Supports Gut Health

Both blueberries and bananas contain dietary fiber - roughly 6g per serving of this smoothie, or about 21% of the recommended daily intake. Bananas also contain fructooligosaccharides (FOS), a type of prebiotic fiber that feeds beneficial gut bacteria. Prebiotic-rich foods are associated with improved gut microbiome diversity and better digestive regularity.

 

Slightly underripe bananas (still yellow with no brown spots) contain more resistant starch, which functions similarly to prebiotic fiber and passes through the small intestine largely undigested - feeding bacteria in the large intestine. If gut health is a priority, mixing a riper banana with a slightly firmer one can give you the flavor benefit of ripeness alongside the prebiotic benefit of resistant starch.

 

Benefit 4 - May Help Regulate Blood Sugar

Despite the natural sugars from banana and blueberries, this smoothie has a relatively moderate glycemic impact when consumed with fiber and protein. A 2020 review in the Journal of the Academy of Nutrition and Dietetics concluded that regular blueberry consumption is associated with improvements in insulin sensitivity in adults with metabolic syndrome (source). The fiber slows glucose absorption, and anthocyanins appear to improve how the body processes carbohydrates.

 

For readers interested in a blueberry banana smoothie for weight loss, this matters: a drink that provides real fruit sugar alongside fiber and protein is more satiating and creates less of a blood sugar spike than juice or a sweetened drink of the same calorie count. Adding Greek yogurt, chia seeds, or protein powder further flattens the glycemic curve.

 

Benefit 5 - Supports Muscle Recovery

Bananas are one of the best natural sources of potassium - an electrolyte depleted through sweat during exercise. 

 

Potassium helps regulate muscle contractions and fluid balance, both of which are important for recovery. One medium banana provides around 422mg of potassium, while blueberries contribute another 115mg. Combined, a single blueberry banana smoothie delivers close to 12% of the recommended daily potassium intake - without any supplements or sports drinks.

 

For post-workout use, adding Greek yogurt to this smoothie gives you a meaningful protein hit on top of the electrolyte replenishment - roughly 10g of protein per 100g depending on the brand. That combination of carbohydrates (from the fruit) and protein (from the yogurt) falls within the range typically recommended for muscle glycogen replenishment and repair after training, per guidance from the American College of Sports Medicine.

 

Benefit 6 - Hydration Support

Blueberries are about 84% water by weight, and bananas are about 75% water. 

 

For people who struggle to drink enough water throughout the day, a fruit-heavy smoothie provides both hydration and micronutrients in one drink. This is particularly useful on hot days, after workouts, or for anyone who finds plain water difficult to consume in adequate amounts.

 

Using almond milk or oat milk as the base extends the hydration benefit further while adding calcium and small amounts of additional nutrients. Water as a base works too - and produces the lightest, lowest-calorie version of this smoothie while keeping the fruit flavor undiluted. The choice of liquid matters less for hydration than for texture and calorie goals.

 

kencko Purples
Every benefit above. One sachet. 30 seconds.
Start My Box
From $2.81/serving
30-day money-back guarantee
Antioxidant-rich berries — anthocyanins from blueberries & blackberries linked to brain and cardiovascular health.
Vitamin C for immune function — 22% of daily value. From real freeze-dried fruit, nothing added.
Fiber for gut health — prebiotic fiber from banana & apple fiber supports microbiome diversity.
Potassium for recovery — from banana & blueberries. No supplements or sports drinks needed.
No added sugar, no preservatives — freeze-drying removes only the water. Everything else stays intact.

 

4. Equipment

A blueberry banana smoothie doesn't require specialized equipment - most kitchens already have everything needed.

 

That said, the quality of your blender does affect the final texture, particularly when using frozen blueberries (their skins can be tough on underpowered blades) or adding fibrous ingredients like spinach. The list below covers what's genuinely required, what's optional but useful, and where it actually makes a difference for this specific recipe.

 

If you're working with only fresh, ripe fruit and no add-ins, almost any blender will produce a good result. The equipment threshold rises when you add frozen elements, protein powder, or greens.

 

Required Equipment

 

For this recipe, the core equipment list is minimal. A basic kitchen blender handles fresh blueberries and a ripe banana without any issues. The knife and cutting board are the only other tools you actually need - and if you're using frozen blueberries and a frozen banana, you can often skip the cutting board entirely.

  • Blender - A 700W+ high-speed blender handles frozen blueberries and fibrous add-ins (like spinach) without leaving chunks. Blueberry skins in particular benefit from a more powerful motor - lower-powered blenders can leave small gritty pieces behind. For a basic smoothie made with ripe, fresh fruit, a standard blender works fine.

  • Measuring cups / kitchen scale - For consistent serving sizes and accurate nutrition tracking. Not strictly necessary, but useful if you're tracking macros.

  • Knife + cutting board - For prepping the banana. Blueberries don't need chopping.

 

Optional but Useful

These items don't change the recipe itself, but they make the process faster, cleaner, and easier to repeat consistently - especially if you're making this smoothie several times a week. The freezer bag system in particular is one of the highest-return habits for anyone who meal preps smoothies regularly.

  • Freezer-safe bags - Portion out all ingredients at the start of the week. Each morning: add liquid, blend, done. This one habit cuts active prep time to under 2 minutes per serving.

  • Wide-mouth sealed jar (500ml) - Best for storing leftover smoothie in the fridge. Easier to clean than a narrow glass and keeps the lid tight to minimize oxidation.

  • Shaker bottle - Useful if you're making a kencko Purples sachet rather than blending from scratch. No blender required, ever.

 

No blender? With very ripe, soft fruit and a hand whisk or fork, you can mash a rough smoothie-style drink - the texture won't be smooth, but it works in a pinch. For a proper blender-free option, kencko's Purples sachet mixes completely in a shaker bottle in under 10 seconds.

 

How to Make a Blueberry Banana Smoothie: Step by Step

A blueberry banana smoothie is hard to get wrong - but following these steps in order produces a noticeably smoother, better-textured result than the "throw everything in at once" approach most people default to.

 

Step 1: Prep Your Fruit

Wash fresh blueberries and pick out any stems. Peel the banana and slice it into coins. If you're using frozen blueberries or frozen banana, measure them straight from the bag - no thawing needed.

 

Ripeness matters more than most people expect. A banana with brown spots on the skin is sweeter, softer, and blends more smoothly than a yellow or green one. If your blueberries aren't quite ripe (or if you're using out-of-season supermarket berries that taste flat), a small drizzle of honey after blending will compensate - but ripe fruit is always the better starting point.

 

If you're using only fresh fruit (no frozen elements), add 2-3 ice cubes to keep the smoothie cold without diluting the flavor too much. Avoid using more than that.

 

Step 2: Add Ingredients in the Right Order

Liquid goes in first. Add 150-200ml of almond milk (or your chosen liquid) before anything else. This creates the vortex that pulls everything evenly into the blades - and protects the motor from stalling on a dry load of frozen fruit.

 

Then add the banana. Then the blueberries. If you're adding Greek yogurt, protein powder, or chia seeds, those go in last - on top of the fruit, not underneath.

 

Step 3: Blend

Secure the lid firmly. Start on low for 10 seconds, then increase to high. Blend for 45-60 seconds. You'll know it's ready when the sound from the blender smooths out - that shift in pitch means the chunks are gone.

 

Blueberry skins can leave a slightly gritty texture in lower-powered blenders. If you notice this, blend for an additional 15 seconds or run the smoothie through a fine mesh strainer after blending.

 

Tilt the jar and check for unblended pieces along the sides. If you see any, blend for another 10-15 seconds.

 

Step 4: Adjust Consistency and Taste

  • Too thick? Add 30ml of liquid at a time and pulse briefly. Don't add all at once - it's easier to thin than to thicken.

  • Too thin? Add half a frozen banana or 1 tablespoon of rolled oats and blend again.

  • Too tart? Add half a teaspoon of honey or a few extra banana slices. Blueberries vary significantly in tartness depending on variety and ripeness.

  • Not sweet enough? Same answer: taste before reaching for sugar. Ripe fruit often means you need nothing extra.

 

Step 5: Serve and Store

Pour immediately for the best texture. A thick blueberry banana smoothie will begin to separate within 10-15 minutes at room temperature; that's normal, just stir or shake before drinking.

 

If storing, transfer to a sealed jar and refrigerate. Drink within 24 hours. Freezing the finished smoothie is possible - portion into ice cube trays, thaw overnight in the fridge. The texture will be slightly less smooth but the flavor holds well.

 

Or skip the 5 steps entirely
Same result. A fraction of the effort. And nothing added.
You just read what making a blueberry banana smoothie actually takes. kencko Purples gives you real fruit in 30 seconds — with a cleaner ingredient profile than any homemade version.
Start My Box
From $2.81/serving · 30-day guarantee
Cancel anytime
The cleanest option
Zero added sugars. Zero preservatives.
Freeze-drying removes only the water — every nutrient, vitamin, and gram of fiber from the original fruit stays intact.
Maximum convenience
Add liquid. Pour sachet. Shake. Done.
No blender, no chopping, no cleanup. No decisions to make on a busy morning. That's the entire process.
Your daily intake, sorted
9 in 10 Americans fall short on fruits & veg.
One kencko sachet = 50% of it. A monthly subscription means you never fall short.

 

Top Tips for a Better Blueberry Banana Smoothie

1. Spot a Ripe Banana Before You Blend It

The single most reliable upgrade to any blueberry banana smoothie is a properly ripe banana. 

 

Look for yellow skin with visible brown spots. At this stage, the starches have converted to sugars, the banana blends smoother, and you're less likely to need added sweetener.

 

A green banana will make the smoothie taste flat and slightly chalky.

2. Use Wild Blueberries If You Can Find Them

Wild blueberries, often sold frozen in the U.S., are smaller than cultivated varieties and contain roughly twice the antioxidant concentration per gram. 

 

They also have a more intense flavor. If you see them in the frozen aisle, they're worth buying specifically for smoothies. Regular cultivated blueberries still produce an excellent result; wild berries are just a notable upgrade when available.

 

3. Put Liquid in First (Every Time)

Liquids create the vortex that pulls everything else down. Starting with solids (especially frozen fruit) risks stalling the blades, uneven blending, and potential motor strain on cheaper blenders. 

 

This applies to every smoothie, not just this one.

 

If you're using a particularly thick base (full-fat coconut milk, for example), thin it slightly with a splash of water before adding fruit. The blades need enough liquid to get moving freely before they can process anything denser.

 

4. Avoid Ice - Use Frozen Fruit Instead

Ice dilutes the flavor as it melts. 

 

If you want a cold, thick blueberry banana smoothie, freeze the banana the night before or keep a bag of frozen blueberries in the freezer. The result is colder, thicker, and more concentrated in flavor.

 

5. Don't Over-Blend

45-60 seconds is sufficient for most blenders. 

 

Over-blending generates heat, which can degrade heat-sensitive nutrients like Vitamin C and shift the texture from thick and creamy to thin and airy. If your blender is running warm, stop sooner.

 

The "smooth sound" test is reliable: when the motor shifts from a loud, uneven churn to a consistent, quieter hum, the smoothie is done. Continuing past that point doesn't improve the texture - it works against it.

 

6. Taste Before You Sweeten

Ripe fruit varies in sweetness batch to batch. 

 

Taste the smoothie before reaching for honey or maple syrup. Adding sweetener before tasting is one of the most common mistakes, and it's easy to overshoot.

 

A Medjool date is a better option than honey if you do need sweetness: it adds natural sugars alongside fiber, which slows the impact on blood glucose. One pitted date blended with the fruit adds roughly 18g of natural sugar alongside 1.6g of fiber, which is a better tradeoff than a teaspoon of straight honey.

 

7. Add Greens Without Changing the Flavor

A 30g handful of mild baby spinach blends almost invisibly into a blueberry banana smoothie. 

 

The deep color of blueberries actually masks the green tint completely, which makes this particular smoothie one of the best for hiding vegetables from kids. Start small - you can always add more once you're comfortable.

 

Baby spinach works better than mature spinach or kale here. 

 

The leaves are softer, milder in flavor, and disappear more completely at standard blending speeds. Kale can leave a slightly bitter note if the blender doesn't fully process the fibrous stems, so either remove the stems or use a high-speed blender if you want to go that route.

 

8. Prep in Advance to Save Time

Portion out your ingredients into labeled zip-lock bags or jars at the start of the week. Store in the freezer if using fresh fruit, or in the fridge if prepping for the next day only. On busy mornings, everything goes straight from the bag into the blender. Active prep time drops to under 90 seconds.

 

Label each bag with the date and any liquid instructions if you're preparing several different smoothie types for the week. This removes any decision-making from the morning routine, which is usually when willpower is lowest and habits are most fragile.

 

9. The Fastest Option: Skip the Blender Entirely

If prep time is the consistent barrier, kencko's Purples sachet contains freeze-dried blueberries, banana, blackberries, strawberries, raspberries, cranberries, dates, and apple fiber - nothing else added. 

 

Mix with 250-300ml of water or oat milk in a shaker bottle, shake for 10 seconds, done. One sachet covers 50% of the recommended daily fruit and vegetable intake. No cutting, no cleaning, no waste.

 

This isn't a compromise option - it's a different tool for a different situation. For weekday mornings, commutes, travel, or days when the kitchen is unavailable, it produces a consistent result every time with no variables to manage.

Blueberry Banana Smoothie Variations Worth Trying

Most blueberry banana smoothie recipes start from the same base - fruit, banana, liquid - but small variations can shift the drink toward different goals: more protein, fewer calories, kid-friendly, or dairy-free. 

 

Each variation below uses the core recipe as a starting point.

 

High-Protein Blueberry Banana Smoothie

This is the easiest way to turn a healthy blueberry smoothie into a post-workout recovery drink or a more filling breakfast. 

 

Add 100g of Greek yogurt: it contributes around 10g of protein, keeps the texture thick and creamy, and adds a slight tang that balances the sweetness of the banana. If you need more protein, add a scoop of unflavored or vanilla protein powder on top of the yogurt. That combination brings total protein to 30-35g per serving, which is more than most protein bars.

 

If you'd rather skip the blending entirely but still want the protein, kencko's Smoothies + Protein Box pairs freeze-dried fruit and vegetable sachets with plant-based protein sachets, both ready in 30 seconds with a shaker bottle, no prep required.

Dairy-Free Blueberry Banana Smoothie

Swap Greek yogurt for a plant-based alternative: coconut yogurt or almond yogurt both work well here. 

 

Use oat milk instead of dairy milk for a creamier texture, or almond milk if you prefer it lighter. 

 

This version is naturally vegan and gluten-free, and the flavor difference from the dairy version is minimal when the fruit is ripe.

 

For extra protein without dairy, 30g of hemp seeds blended in adds around 10g of complete protein along with a mild, slightly nutty flavor that works well with blueberry. Silken tofu is another option - 100g adds about 8g of protein and blends completely smooth without altering the flavor.

 

Low-Calorie Blueberry Banana Smoothie for Weight Loss

Use unsweetened almond milk as the base (30 kcal per 200ml), skip the yogurt, and keep the banana to half rather than a full one. Add 1 tablespoon of chia seeds for fiber and satiety without significant extra calories. This version typically comes in under 150 kcal per serving - noticeably lighter without sacrificing the core flavor.

 

For a blueberry banana smoothie for weight loss specifically, fiber is the lever that matters most. 

 

A drink that keeps you full for 3+ hours prevents mid-morning snacking, which tends to undo more calorie savings than the smoothie itself provides. Chia seeds, rolled oats, and a full serving of Greek yogurt all help with satiety. 

 

The kencko Purples sachet, at around 70 kcal mixed with water, is a naturally lower-calorie option that still delivers the fiber and micronutrients - useful for anyone trying to build a sustainable calorie deficit without feeling hungry.

 

Kids' Version

Avoid adding greens on first introduction; build to that gradually. 

 

If the flavor needs softening, a few drops of pure vanilla extract works better than added sugar. Freeze the smoothie into popsicle molds in summer. Kids who won't drink a smoothie will often eat it as a frozen treat.

 

kencko Purples is also a practical option here: the sachet mixes smoothly in a shaker bottle with no blender noise, no mess, and no cleanup, which removes most of the friction on school mornings. The flavor is naturally sweet from real fruit with no added sugar, making it a clean alternative to most kids' breakfast drinks.

Strawberry Blueberry Banana Smoothie

This is one of the most popular variations for a reason - the three fruits balance each other almost perfectly. 

 

Strawberries add brightness and acidity, blueberries contribute depth and antioxidants, and banana smooths everything out. Use ½ cup blueberries, ½ cup strawberries, and 1 banana with 200ml of almond milk. The result is slightly less tart than a straight blueberry smoothie and higher in Vitamin C.

 

This variation also works well with kencko: the Purples sachet already contains both blueberries and strawberries alongside banana, making it effectively a strawberry blueberry banana smoothie in concentrated form.

 

Blueberry Banana Oatmeal Smoothie

Add ¼ cup rolled oats to the base recipe. 

 

Blend for 10 seconds longer than usual to break down the oats fully. This adds around 75 kcal, 2.5g of protein, and 2g of fiber - and turns the smoothie into something substantial enough to replace a full breakfast. The oats also slow digestion, which extends the energy release over several hours rather than a single 30-60 minute window.

 

Soaking the oats in the liquid for 5 minutes before blending produces a smoother final texture. If you prefer a thicker consistency, skip the soak.

 

Or, the easy version
No variations needed.
Just add water.
kencko Purples is already optimised. Freeze-dried blueberries, banana, blackberries, strawberries, raspberries, cranberries, dates, and apple fiber — nothing added, no decisions to make. 30 seconds from sachet to glass.

No blender

No freezer

Cancel anytime
Try kencko Purples From $2.81/serving
daily intake
50%
One sachet

 

How to Store and Meal Prep This Recipe

  • Refrigerating: Store in a sealed jar for up to 24 hours. Separation is normal - shake or stir before drinking. Wide-mouth mason jars seal well and are easy to clean. Avoid leaving the smoothie in a regular glass uncovered, as oxidation affects both the color and nutritional value - blueberry smoothies in particular can darken significantly overnight.

  • Freezing: The finished smoothie freezes well. Portion into ice cube trays or freezer-safe containers and freeze for up to 3 months. Thaw overnight in the fridge. The texture will be slightly less smooth than freshly blended, but the flavor holds well. Re-blend for 10 seconds after thawing to restore consistency.

  • Meal Prep: This is where the real time savings are. At the start of each week, portion out all solid ingredients - blueberries, banana slices, any add-ins - into 5-7 individual freezer bags. Label each with the date. Each morning: pour liquid into the blender, add the bag contents, blend for 60 seconds, done. Active prep time per serving drops to under 2 minutes.

  • If you want an even faster version for the week, kencko sachets don't need portioning, refrigeration, or a blender. Each sachet is a full serving of freeze-dried fruits and vegetables, shelf-stable for up to 12 months, ready in 30 seconds with a shaker bottle.

 

Blueberry Banana Smoothie vs. kencko Purples: Which Makes More Sense for You?

An honest comparison. Neither approach is universally better - it depends on your morning, your schedule, and what you're optimizing for. 

 

The homemade version gives you full ingredient control and a larger, more customizable serving. The kencko Purples sachet gives you the same core fruits in 30 seconds, with no equipment and no cleanup.

 

The table below maps the practical differences so you can choose based on your actual situation rather than an abstract preference.


Homemade Blueberry Banana Smoothie
kencko Purples
Prep Time
3–5 minutes
Less than 30 seconds
Equipment Needed
Blender, knife, cutting board
Shaker bottle or glass
Freezer Required
Optional (recommended for texture)
No — shelf-stable up to 18 months
Shelf Life
2–5 days (fresh fruit)
Up to 12 months
Ingredients
Fresh/frozen fruit + liquid of choice
100% freeze-dried fruits (8 ingredients)
Additives
Depends on what you add
None — just real produce
Cost per Serving
Varies (~$2–5)
From $2.81 (monthly subscription)
Cleanup
Blender, knife, cutting board
Rinse the shaker bottle
Best For
Weekend mornings, full recipe control
Busy weekdays, travel, on-the-go nutrition

 

The comparison
speaks for itself.
kencko Purples.
Freeze-dried blueberries, banana, blackberries, strawberries, raspberries, cranberries, dates, and apple fiber. One sachet = 50% of your recommended daily fruit and vegetable intake.
Backed by a 30-day money-back guarantee
Start My Subscription Free shipping · Cancel anytime
From $2.81/serving
Monthly subscription
30 days
Money-back guarantee, no questions
Shelf-stable for 12 months. No freezer. No waste. No urgency.

 

The homemade version gives you more control over texture, sweetness, and add-ins. It's also a satisfying process when you have the time. But on the mornings when the blender feels like too many steps - and those mornings happen - the kencko option means you still get your fruit and vegetable intake without compromise.

 

One practical way to use both: blend from scratch on weekends when you have time and want a larger, more filling serving. Use kencko Purples on weekday mornings when speed matters more than customization. Neither approach requires you to abandon the other.

 

Try the Easier Way: kencko Purples

Making a blueberry banana smoothie from scratch takes time. Washing the fruit, slicing the banana, measuring the liquid, blending, and cleaning the blender. On a busy weekday morning, that's the part that gets skipped.

 

kencko's Purples sachet contains 100% organic freeze-dried blueberries, banana, blackberries, strawberries, raspberries, cranberries, dates, and apple fiber. No preservatives, no additives, nothing artificial. One sachet covers 50% of the recommended daily fruit and vegetable intake, and it's ready in 30 seconds with 250-300ml of water, milk, or any plant-based drink.

 

No blender. No freezer. No cleanup.

 

At from $2.81 per smoothie on a monthly subscription, it's less than most coffee runs - and it counts toward your daily produce intake in a way that most coffee runs don't.

 

 

Try the easier way
kencko Purples.
No blender. No freezer.
No cleanup.
100% freeze-dried blueberries, banana, blackberries, strawberries, raspberries, cranberries, dates, and apple fiber. No preservatives, no additives, nothing artificial. One sachet covers 50% of the recommended daily fruit and vegetable intake — ready in 30 seconds with 250–300ml of water, milk, or any plant-based drink.
Try kencko Purples From $2.81/serving · 30-day guarantee
58 kcal per sachet Mixed with water, no add-ins
0g added sugars Just real freeze-dried fruit
Shelf-stable 12 months No freezer, no thawing, no waste

 

FAQs About Blueberry Banana Smoothies

 

Is a blueberry banana smoothie healthy?

A blueberry banana smoothie is healthy when made from whole fruit with no added sugar. One serving made with fresh or frozen blueberries, a ripe banana, and a plant-based milk provides about 21% of the recommended daily fiber, meaningful amounts of potassium, and a significant dose of anthocyanins - antioxidants linked in multiple studies to improved brain and cardiovascular health. The calorie count stays around 175 kcal per serving without add-ins, making it a reasonable breakfast or snack. What changes the health profile most is what gets added: Greek yogurt and chia seeds increase protein and fiber, while flavored syrups or ice cream shift it toward dessert territory.

 

How many calories are in a blueberry banana smoothie?

A blueberry banana smoothie made with 1 cup of blueberries, 1 medium banana, and 200ml of unsweetened almond milk contains approximately 175 kcal per serving. Adding Greek yogurt (100g) brings it to around 234 kcal and adds 10g of protein. A scoop of protein powder adds another 120 kcal and 20-25g of protein, bringing the total to around 350 kcal - enough to function as a full meal replacement. Calorie counts vary with fruit size, liquid choice, and any add-ins.

 

How do you make a blueberry banana smoothie?

To make a blueberry banana smoothie, add 200ml of almond milk (or your preferred liquid) to a blender first, then 1 medium banana, 1 cup of blueberries (frozen gives the best texture), and any optional add-ins like Greek yogurt or chia seeds. Blend on low for 10 seconds, then on high for 45-60 seconds until smooth. Taste before adding any sweetener - ripe fruit is usually sweet enough on its own. Pour immediately for the best texture or store in a sealed jar in the fridge for up to 24 hours.

 

How do I make a blueberry banana smoothie without yogurt?

A blueberry banana smoothie without yogurt is still thick and creamy - the banana handles most of that texture on its own. Use a frozen banana instead of a fresh one to maximize creaminess. If you want a thicker result similar to what yogurt provides, add half an avocado or 2 tablespoons of rolled oats - both blend smoothly and add body without the dairy. Silken tofu is another option that adds protein and creaminess without affecting the flavor. Coconut milk (full-fat) is the richest dairy-free substitute if calories aren't a concern.

 

How do I make a healthy blueberry smoothie?

A healthy blueberry smoothie starts with whole fruit - no flavored yogurts, no sweetened milks, and no added syrups. Use ripe fresh or frozen blueberries, a ripe banana, and an unsweetened liquid base like almond milk or water. Taste before adding honey, because you often won't need it. For extra nutrition without changing the flavor, add a handful of spinach and a tablespoon of chia seeds. If you want the cleanest possible option with zero prep, kencko's Purples sachet contains only freeze-dried blueberries, banana, blackberries, strawberries, raspberries, cranberries, dates, and apple fiber - no additives, no added sugar - and covers 50% of the recommended daily fruit and vegetable intake in 30 seconds.

 

Can I make a blueberry banana smoothie without a blender?

You can make a rough version of a blueberry banana smoothie without a blender by mashing a very ripe banana with a fork, adding milk, and stirring in thawed blueberries - but the texture will be chunky rather than smooth, and the blueberry skins won't break down. For a genuinely blender-free option, kencko's Purples sachet is designed specifically for this. The freeze-dried powder dissolves completely in a shaker bottle with water or milk, producing a smooth drink in about 10 seconds. No blender required, at any point.

 

How do I make a blueberry banana smoothie thicker?

The most effective way to make a blueberry banana smoothie thicker is to use frozen fruit instead of fresh - frozen banana especially makes a noticeable difference. If your smoothie is still too thin after blending, add 2 tablespoons of rolled oats and blend again; they absorb liquid and add body without affecting the flavor significantly. A tablespoon of chia seeds will also thicken the smoothie, though it takes a few minutes to take effect. Avoid adding more frozen fruit without adding more liquid first, as it can stall the blender.

 

Is a blueberry banana smoothie good for weight loss?

A blueberry banana smoothie can support weight loss when it's built around whole fruit, fiber, and protein - not sugar and calories. One serving with unsweetened almond milk, half a banana, a cup of blueberries, and a tablespoon of chia seeds comes in under 150 kcal and keeps you full for 3+ hours thanks to the fiber content. Adding Greek yogurt or protein powder further increases satiety, which is what actually drives sustainable weight loss. Skip the honey, maple syrup, and full-fat coconut milk if weight loss is the goal - those add calories without meaningfully improving the nutrition profile.

 

What liquid is best for a blueberry banana smoothie?

The best liquid for a blueberry banana smoothie depends on what you're optimizing for: almond milk keeps the calorie count low (around 30 kcal per 200ml), oat milk produces a creamier texture with a slightly higher calorie count (around 80 kcal per 200ml), and water is the lightest option at zero additional calories. Dairy milk works well if you're not avoiding lactose - whole milk adds richness, skim milk keeps it lighter. Coconut water adds natural electrolytes and is a good choice for post-workout recovery. Avoid fruit juice, which adds significant sugar without much nutritional return.

 

Can I make this smoothie the night before?

You can make a blueberry banana smoothie the night before and refrigerate it in a sealed jar - it keeps well for up to 24 hours. Some separation is normal by morning; a quick shake or stir restores the texture. The color will likely darken slightly overnight due to natural oxidation of the blueberries, but the flavor holds. For the best result, store with minimal air space in the jar. If meal prep is a regular priority, portioning the solid ingredients into freezer bags at the start of the week is more practical - blend fresh each morning in under 2 minutes.