Green Detox Smoothie

Featured in: Sweet Spots

This vibrant green smoothie combines the crisp nutrition of romaine and spinach with naturally sweet fruits for a perfectly balanced morning beverage. The frozen banana creates a creamy texture while apple adds sweetness and vitamin C. Fresh mint leaves brighten each sip, and chia seeds provide omega-3s and lasting satiety. Ready in just 5 minutes with minimal cleanup, this blend offers an effortless way to flood your body with antioxidants, fiber, and essential nutrients. Customize with avocado for creaminess or plant protein powder for an extra boost.

Updated on Wed, 21 Jan 2026 15:00:00 GMT
A tall glass of vibrant green detox smoothie made with romaine, spinach, banana, and apple, topped with chia seeds and a mint sprig.  Save
A tall glass of vibrant green detox smoothie made with romaine, spinach, banana, and apple, topped with chia seeds and a mint sprig. | tastychuck.com

My roommate in college used to joke that my morning smoothies looked like pond water, right until the day she finally tried one and asked for the recipe. Now this green blend is the first thing I reach for after nights when sleep didn't happen quite enough. Something about that bright grassy taste mixed with sweet fruit makes my whole body feel like it's waking up properly. I've even converted a few skeptics who swore they'd never drink something so green.

Last summer my niece watched me make this with wide eyes, absolutely convinced I was mixing up something gross. She took one tentative sip and immediately demanded her own full glass. Now whenever I visit, she asks if I'll bring my special green potion. Kids are funny like that sometimes they just need to see someone else enjoy something first.

Ingredients

  • 1 romaine heart, chopped: Romaine adds a surprisingly mild sweetness compared to other greens, and its high water content helps create a smoother texture without needing as much liquid
  • 1 cup baby spinach, packed: Baby spinach has a delicate flavor that disappears into the fruit, letting you pack in nutrients without any bitter taste
  • 1 frozen banana, sliced: Freezing bananas ahead of time eliminates the need for ice while giving the smoothie that thick, milkshake-like consistency that makes it feel indulgent
  • 1 medium apple, cored and chopped: The apple adds natural sweetness and fresh crispness that balances the deeper green flavors
  • Juice of 1/2 lemon: Lemon brightens everything and helps the nutrients absorb better, plus it cuts through any potential heaviness from the greens
  • 5 to 6 fresh mint leaves: Mint is the secret ingredient that makes this taste refreshing instead of just healthy
  • 1 tablespoon chia seeds: These little seeds expand in your stomach keeping you full longer, and they add a subtle nutty richness
  • 1 1/2 cups filtered water: Using filtered water makes a difference in taste since water is the main liquid carrying all these flavors

Instructions

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Prep your greens:
Rinse the romaine and spinach thoroughly, then chop the romaine heart into manageable chunks that your blender can easily process
Add everything to the blender:
Toss in the romaine, spinach, frozen banana, apple chunks, lemon juice, mint leaves, and chia seeds
Pour in the water:
Add the filtered water last, pouring it over everything to help the blending process start smoothly
Blend until completely smooth:
Start on low speed to break down the larger pieces, then crank it to high for one to two minutes until there's absolutely no texture left
Taste and adjust:
Give it a quick taste and add more lemon for brightness or extra mint if you want it more refreshing
Serve immediately:
Pour into glasses right away and drink while it's still cold and perfectly smooth
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Blend soups, smoothies, sauces, and baby food directly in pots for quick, smooth results.
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The Green Detox Smoothie pours into a clear glass beside fresh ingredients like romaine, apple, mint, and chia seeds.  Save
The Green Detox Smoothie pours into a clear glass beside fresh ingredients like romaine, apple, mint, and chia seeds. | tastychuck.com

This smoothie became my go-to during a particularly stressful work project when I was surviving on coffee and takeout. Every morning felt like I was finally doing something good for myself. Those five minutes of blending time became a tiny ritual that made everything else feel more manageable.

Make It Your Own

I've found that adding a quarter avocado transforms this into something ridiculously silky, almost like a dessert. The flavor disappears completely but your mouth will notice the difference. Some mornings I throw in a scoop of protein powder after a workout and it still tastes amazing.

Texture Secrets

If you like your smoothies extra thick, freeze the apple chunks too or toss in a few ice cubes. For a thinner consistency that's easier to drink through a straw, just add another quarter cup of water. The beauty of this recipe is how forgiving it is once you understand the basic ratios.

Storage and Prep

Prepping smoothie packs in advance has saved my mornings more times than I can count. I portion the greens, fruit, and chia seeds into freezer bags, then just dump one in the blender with water when I'm half-awake. The texture holds up for about 24 hours in the fridge if you need to make it the night before.

  • Use glass jars for storage plastic sometimes holds onto flavors
  • Give it a quick shake or stir before drinking if it's been sitting
  • The chia seeds will continue thickening the longer it sits
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Chilled Green Detox Smoothie in a frosty glass garnished with mint, with lemon wedges and apple slices nearby. Save
Chilled Green Detox Smoothie in a frosty glass garnished with mint, with lemon wedges and apple slices nearby. | tastychuck.com

There's something deeply satisfying about drinking something that looks this vibrant and tastes this fresh. Here's to mornings that feel a little more alive.

Recipe Guide

Can I make this smoothie ahead of time?

For best results and maximum nutrition, blend and enjoy immediately. The ingredients separate and lose vibrant color when stored. If necessary, keep refrigerated in an airtight container for up to 24 hours and shake well before drinking.

What can I substitute for the banana?

Frozen mango or pineapple create similar creaminess. Half an avocado adds richness without the fruit sweetness. For lower sugar options, use additional frozen zucchini or cauliflower—these maintain texture while staying neutral in flavor.

How can I make this more filling?

Add a quarter avocado for healthy fats, a scoop of plant-based protein powder, or a tablespoon of nut butter. Rolled oats or hemp seeds also boost satiety while blending smoothly into the mixture.

Why is my smoothie bitter?

Bitterness usually comes from too much romaine or overripe greens. Balance by adding extra banana, apple, or a medjool date. A pinch of sea salt and squeeze of lemon also help neutralize bitter notes.

Can I use water alternatives?

Coconut water adds natural electrolytes and subtle sweetness. Unsweetened almond milk or oat milk create creaminess. Green tea provides a gentle caffeine boost while chamomile tea adds relaxing properties.

Do chia seeds need to be soaked first?

No soaking required for smoothies—the seeds blend directly into the liquid and soften as the drink sits. For maximum nutrition absorption, let the smoothie rest 5 minutes before consuming to allow the seeds to hydrate.

Green Detox Smoothie

Refreshing blend of spinach, banana, apple, and chia seeds delivers vitamins and fiber in just 5 minutes.

Prep duration
5 min
0
Full duration
5 min
Created by Chuck Harrison

Style Sweet Spots

Skill level Easy

Heritage International

Output 2 Portions

Nutrition Labels Plant-Based, No dairy, No gluten

What you'll need

Greens

01 1 romaine heart, chopped
02 1 cup baby spinach, packed

Fruits

01 1 frozen banana, sliced
02 1 medium apple, cored and chopped
03 Juice of 1/2 lemon

Herbs & Seeds

01 5–6 fresh mint leaves
02 1 tablespoon chia seeds

Liquid

01 1 1/2 cups filtered water

Method

Phase 01

Combine ingredients: Place romaine heart, baby spinach, frozen banana, apple, lemon juice, mint leaves, and chia seeds into a high-speed blender.

Phase 02

Add liquid: Pour filtered water into the blender over the solid ingredients.

Phase 03

Blend smooth: Blend on high speed until completely smooth and creamy, approximately 1–2 minutes.

Phase 04

Adjust seasoning: Taste the smoothie and add more lemon juice or fresh mint leaves as desired.

Phase 05

Serve immediately: Pour into glasses and serve immediately while cold for optimal freshness.

Kitchen tools

  • High-speed blender
  • Knife
  • Measuring cups and spoons

Allergy alerts

Always review ingredients for potential allergens and seek professional medical guidance if unsure
  • Contains chia seeds (possible cross-reactivity for those with sesame allergies)
  • Check chia seed and plant labels for possible nut or gluten cross-contamination

Nutrition breakdown (per portion)

Values shown are estimates only - consult healthcare providers for specific advice
  • Energy: 110
  • Fats: 2.5 g
  • Carbohydrates: 24 g
  • Proteins: 3 g