You want better digestion without choking down bland fiber powder? Here’s the delicious cheat code. This smoothie tastes like apple pie, crushes cravings, and keeps your stomach calm—without the crash.
It’s fast, budget-friendly, and yes, your gut will send you a thank-you note. If you want smoother mornings, steady energy, and less bloat, start here. Make one, and your blender might become your new morning ritual.
What Makes This Special

This isn’t just a “healthy smoothie.” It’s engineered for digestion with the right combo of soluble fiber, prebiotics, and anti-inflammatory spices.
Apples and oats bring soluble fiber to slow digestion and stabilize blood sugar. Greek yogurt or kefir adds probiotics for gut support. Cinnamon helps with insulin sensitivity and flavor, while flax and chia deliver omega-3s and extra fiber to keep things, ahem, moving.
Plus, it tastes like a spiced apple milkshake without the sugar bomb.
You get fullness, flavor, and function—no gimmicks. And it blends smooth, so there’s no gritty “health drink” vibe. That’s a win.
Shopping List – Ingredients
- 1 medium apple (Honeycrisp, Fuji, or Gala; leave the peel on for fiber)
- 1/2 cup plain Greek yogurt or kefir (for probiotics and protein)
- 1/3 cup rolled oats (gluten-free if needed)
- 1 tablespoon ground flaxseed (freshly ground if possible)
- 1 teaspoon chia seeds
- 1/2 to 1 teaspoon ground cinnamon
- 1 teaspoon honey or maple syrup (optional, adjust to taste)
- 1/2 frozen banana (creaminess and natural sweetness)
- 1 cup unsweetened almond milk (or dairy milk, oat milk, or water)
- 1/4 teaspoon vanilla extract (optional)
- Pinch of sea salt (enhances flavor—yes, really)
- Ice (3–5 cubes if you want it extra chilly)
Instructions

- Prep the apple: Wash, core, and chop.
Keep the peel on for the pectin fiber your gut loves.
- Load the blender: Add almond milk first, then oats, yogurt/kefir, apple, banana, flax, chia, cinnamon, vanilla, and a pinch of salt.
- Sweeten smartly: Add honey or maple syrup only if the apple isn’t sweet enough. Remember, the banana helps.
- Blend until ultra-smooth: 45–60 seconds. If it’s too thick, add a splash more milk.
Too thin? Toss in a few ice cubes or extra oats.
- Taste and tweak: Add more cinnamon for warmth or a squeeze of lemon for brightness.
- Serve immediately: Pour into a tall glass. Optional: dust with cinnamon or top with a few oat flakes for the “I cook” aesthetic.
Storage Tips
- Short-term: Refrigerate in an airtight jar for up to 24 hours.
Stir or shake before drinking—chia and oats may thicken it.
- Meal prep: Pre-pack dry ingredients (oats, flax, chia, cinnamon) in small jars. In the morning, add apple, banana, yogurt, and milk, then blend. Done in 90 seconds.
- Freezer packs: Freeze chopped apple and banana in smoothie bags.
Add liquid and blend straight from the freezer.
- Texture fix: If it gels overnight, thin with milk or water and reblend for 10 seconds.

Why This is Good for You
- High in soluble fiber: Apples (pectin) and oats help form a gentle gel in your gut. This supports smoother digestion and steadier energy.
- Prebiotic + probiotic combo: Apples and oats feed good bacteria; yogurt or kefir adds live cultures. That’s a gut health tag team.
- Anti-inflammatory spice: Cinnamon may support healthy blood sugar and reduce oxidative stress.
Also, it tastes like dessert—zero downside.
- Satiety without the slump: Protein from yogurt, fiber from seeds and oats, and slow carbs prevent mid-morning crashes. Your 10 a.m. self will thank you.
- Heart and hormone support: Flax and chia provide ALA omega-3s and lignans, which are linked to heart health and balanced digestion.
Pitfalls to Watch Out For
- Too much sweetener: The fruit is usually enough. Extra sugar can spike blood glucose and defeat the digestion-friendly goal.
- Skipping the peel: That’s where a lot of the fiber lives.
Keep it on, IMO.
- Overloading seeds: More is not better. Too many chia/flax can turn your smoothie into cement. Stick to the amounts listed.
- Chugging too fast: Fiber works best with water and time.
Sip slowly and hydrate through the day for best results.
- Using only water: If you want creaminess and staying power, use milk or kefir. Water can make it thin and less satisfying.
Variations You Can Try
- High-Protein Upgrade: Add 1 scoop unflavored or vanilla protein powder and 2 ice cubes. Great post-workout.
- Apple Pie Greens: Add 1 cup spinach.
You won’t taste it, but your gut microbes will throw a party.
- Ginger Glow: Add 1/2 teaspoon fresh grated ginger or a pinch of powdered ginger for extra digestive support.
- Dairy-Free Probiotic: Use dairy-free yogurt with live cultures or a splash of kombucha instead of kefir. Keep the oats and seeds.
- Nut Butter Cozy: Add 1 tablespoon almond butter for richness and extra minerals. Pairs beautifully with cinnamon.
- Low-FODMAP-ish Swap: Try half an unripe banana, lactose-free yogurt, and a firm unripe apple or swap apple for strawberries if apples bug you.
- Warm Smoothie Bowl: Skip the ice, blend thick, and top with warm sautéed apples and a sprinkle of cinnamon.
Weekend flex.
FAQ
How much fiber is in this smoothie?
Depending on the apple size and exact amounts, expect roughly 10–14 grams of fiber from the apple, oats, chia, and flax. That’s a solid chunk toward the typical daily goal of 25–38 grams.
Can I make it without banana?
Yes. Swap the banana for 1/2 cup frozen pear or 1/2 cup frozen cauliflower for creaminess, then add a tiny bit more honey or maple if needed.
Is this good for constipation?
It can help.
The mix of soluble and insoluble fiber plus hydration supports regularity. Just remember: fiber needs water, so keep fluids up throughout the day.
Can I use steel-cut oats?
Not ideal for blending raw. Use rolled oats or quick oats for a smoother texture.
If steel-cut is all you have, soak them in hot water for 20–30 minutes first.
What if I’m sensitive to dairy?
Use kefir if you tolerate it (often easier on digestion), or go fully dairy-free with coconut or almond yogurt that contains live cultures. The recipe still works great.
When’s the best time to drink this?
Morning is optimal for steady energy and digestive rhythm, but it also works as a midday snack or pre-workout fuel 60–90 minutes before training.
Can kids drink this?
Absolutely. You might reduce the cinnamon a bit and skip added sweeteners.
It’s a great way to sneak in fiber and healthy fats.
Will cinnamon irritate my stomach?
Most people do fine with 1/2 to 1 teaspoon. If you’re sensitive, start small and choose Ceylon cinnamon, which is milder. If irritation persists, omit it.
The Bottom Line
The High-Fiber Apple Cinnamon Smoothie for Digestion is a simple, craveable way to boost fiber, feed your gut, and level up your mornings.
It’s fast to make, easy to customize, and delivers real results: less bloat, better energy, and smoother digestion. Make it a habit for a week and see how you feel—your gut will probably vote “keep.” FYI, this is one “health drink” you’ll actually look forward to finishing.

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