If you’ve ever ordered a smoothie thinking it was healthy, there’s a good chance it ended up being more like a milkshake loaded with sugar. These low carb smoothies are how I still enjoy smoothies while keeping them high protein, filling, and actually satisfying enough for breakfast or a quick meal. I’m sharing the simple formula I use, the best low carb ingredients, and my favorite keto smoothie combinations, including a strawberry cheesecake version that tastes like dessert.
Why You’ll Love These Low Carb Smoothies
These are the kind of smoothies I actually make at home because they don’t leave me hungry an hour later. Most smoothie shop smoothies are packed with sugar and barely any protein, but these low carb smoothies are creamy, filling, and easy to customize with whatever you have on hand. I love adding protein powder, healthy fats, and frozen berries to make something that tastes good but still keeps me full for breakfast or a quick lunch.
What Makes a Smoothie Low Carb?
A low carb smoothie keeps the carbs lower by using ingredients like unsweetened almond milk, frozen berries, protein powder, healthy fats, and low carb add-ins instead. The goal is to make a smoothie that still tastes creamy and satisfying without turning it into a giant sugar bomb that leaves you hungry again an hour later.
The Best Ingredients for Low Carb Smoothies
The best low carb smoothies start with a balance of protein, healthy fats, and just enough fruit for flavor. I usually stick with unsweetened almond milk, frozen strawberries or raspberries, and a scoop of vanilla protein powder to make the smoothie more filling. For creaminess, I love adding almond butter, avocado, or even a little cream cheese for a cheesecake-style smoothie.
You can also add extras like chia seeds, spinach, flaxseed, or collagen powder depending on what you have on hand. Once you have a few good staples in your kitchen, it’s really easy to throw together a smoothie that tastes good and actually keeps you full.
Protein
- vanilla protein powder
- collagen peptides
- Greek yogurt (if not strict keto)
Healthy Fats
- almond butter
- peanut butter
- avocado
- cream cheese
- coconut cream
Low Carb Fruit
- strawberries
- raspberries
- blackberries
- blueberries in smaller amounts
Greens & Fiber
- spinach
- kale
- chia seeds
- flaxseed
Liquids
- unsweetened almond milk
- coconut milk
- water
How to Build a Smoothie That Keeps You Full
The biggest mistake people make with smoothies is only adding fruit and liquid, which usually leads to a smoothie that tastes good for about 20 minutes before you’re hungry again. I try to build my smoothies more like a balanced meal by including protein, healthy fats, fiber, and enough volume to actually keep me satisfied.
My usual formula is protein powder, frozen berries for flavor, almond milk or water for the liquid, and something creamy like almond butter, avocado, or cream cheese. Then I’ll sometimes add spinach, chia seeds, or flaxseed for extra fiber without changing the flavor too much.
My Favorite Keto Smoothie Combinations
Here are a few low carb smoothie combinations I make over and over depending on what I’m in the mood for. These are all easy to customize and work great for breakfast or a quick high protein snack.
Strawberry Cheesecake Smoothie
This one tastes the most like dessert and is probably my favorite lately.
- frozen strawberries
- vanilla protein powder
- cream cheese
- unsweetened almond milk
- ice
Green Protein Smoothie
This is the smoothie I make when I want something fresh that will actually keep me full.
- spinach
- vanilla protein powder
- almond butter
- chia seeds
- unsweetened almond milk
- ice
Chocolate Peanut Butter Smoothie
If you want something richer and more filling, this one tastes almost like a milkshake.
- chocolate protein powder
- peanut butter
- unsweetened almond milk
- ice
- optional: a little cocoa powder
Mixed Berry Smoothie
This is an easy everyday smoothie using whatever frozen berries I have in the freezer.
- frozen strawberries
- frozen raspberries
- vanilla protein powder
- flaxseed
- almond milk
Coffee Protein Smoothie
Perfect for mornings when you want coffee and breakfast at the same time.
- cold brew coffee
- vanilla or chocolate protein powder
- almond butter or heavy cream
- ice
- optional: monk fruit sweetener
Tips for Better Smoothies
- Use frozen fruit for a thicker smoothie
- Add liquid first for easier blending
- Start with less liquid and add more as needed
- Protein powder helps make smoothies more filling
- Cream cheese or avocado makes smoothies extra creamy
Ingredient Swaps
One of the best things about low carb smoothies is how easy they are to customize based on what you already have at home. Here are a few simple swaps that work well:
- Swap strawberries for raspberries or blackberries to keep the carbs low while changing the flavor.
- Use coconut milk instead of almond milk for a richer, creamier smoothie.
- Replace cream cheese with avocado or coconut cream for a dairy-free option.
- Use collagen peptides instead of protein powder if you want a more neutral flavor.
- Almond butter, peanut butter, or sunflower seed butter all work well for healthy fats.
- Add spinach or kale for extra fiber and nutrients without changing the flavor too much.
- If your protein powder is already sweetened, you can usually skip the extra sweetener.
Frequently Asked Questions
Yes, as long as you keep the high sugar ingredients to a minimum. Most smoothie shop smoothies use fruit juice, bananas, frozen yogurt, and sweetened ingredients that can make the carbs add up quickly. Making smoothies at home lets you control the protein, fruit, and sweeteners.
Strawberries, raspberries, and blackberries are some of the best low carb fruits for smoothies. I use frozen strawberries most often because they add sweetness and flavor without making the smoothie too high in carbs.
Adding protein, healthy fats, and fiber makes a huge difference. Protein powder, almond butter, chia seeds, flaxseed, avocado, and cream cheese all help make smoothies more satisfying so you stay full longer.
Yes. You can use coconut cream instead of cream cheese and stick with unsweetened almond milk or coconut milk. There are also a lot of dairy-free protein powders that work well.
Yes. I like to portion the smoothie ingredients into freezer bags ahead of time so all I have to do is dump everything into the blender with liquid when I’m ready to make one.
I usually use vanilla protein powder because it works with almost any flavor combination. Just make sure to choose one with lower sugar and carbs if you want to keep the smoothie keto friendly.
Strawberry Cheesecake Keto Smoothie
Ingredients
- ¾ cup unsweetened almond milk
- ½ cup unsweetened frozen sliced strawberries
- ½ cup ice cubes
- 1 ounce 1 ounce cream cheese
- 1 serving low-carb vanilla protein powder
Notes
- Frozen strawberries give the smoothie the best thick and creamy texture, but fresh strawberries will also work. You may just need to add a little extra ice.
- For a dairy-free version, replace the cream cheese with coconut cream or avocado.
- Add more almond milk for a thinner smoothie or more ice for a thicker smoothie.
- Vanilla protein powder works best for the cheesecake flavor, but chocolate protein powder is also good for a richer smoothie.
- You can add spinach, chia seeds, or flaxseed for extra fiber and nutrients without changing the flavor too much.
Did you make this recipe?
Leave a comment or rating below!
Ashley says
Made a strawberry and spinach smoothie with naked whey and greek yogurt for the base. I did use some maple syrup but it really good.
Shannon says
Thank you! I am trying to cut the sugar in my smoothie and this helps. I’ve been using raspberry/blueberry herbal iced tea instead of water for extra fruit flavor w/o the sugar. It adds a boost of flavor!
Anne says
Thanks for the inspiration on my journey! You gave me some insight into reformulating my best-loved smoothie for my new low carb path. Love your site!
Deborah Goldman says
Hi Jennifer, I was wondering if fresh verses frozen fruits and vegetables. I notice you have frozen most of the time for your recipes. Is frozen less carbs??
Jennifer Banz says
Frozen is just more convenient
Amy Sears says
How much almond milk do you use and what kind?
jenniferbanz says
I would use enough to cover the ingredients in the container, or about 8 ounces
Chrishara Sutton- Moore says
I love this revelation I received for eating well. Thank you for all this information!
Kristin Warner says
I'm 51 years old. I've been a type 1 diabetic since I was three and no one else in my family has ever had diabetes I can't take care of myself until I was in my thirties I've always been underweight or normal too low. Now I have gastroparesis and there's not very much that can even fit in my stomach if anything even stays down. All I care about is keeping my blood sugar low. so this is the smoothie I can have as much as I can get down and never have to worry about my blood sugar because it is so low carb. I want to wait and end up getting a bypass and they took out 85% of my stomach so that is the other issue that even if there was room ,I couldn't fit enough in there to gain weight. I know this is completely jumbled and I'm sorry about that I just wanted to spit everything out at once. I freeze everything so that it doesn't get diluted and I can just put it back in the freezer and it tastes better. There's never any reason to add water when I could add chicken broth or some kind of low carb, sometimes Fairlife milk for heavy whipping cream mixed with water which is what that carb control milk was I think. The premier protein shakes which I believe are the same as the ensure Max protein boost which is more expensive but sometimes I've heard that Peoples Insurance might pay for it? That would be nice. Both have lower carbs than the same brand of powder so I freeze those in ice cube trays. Unfortunately to me only the chocolate is okay so I can't make a fruit smoothie with it. It's possible the vanilla might not taste so sickeningly sweet and okay in a smoothie but I haven't tried it yet. I just use frozen blackberries Frozen starfruit and frozen raspberries sometimes some kind of low carb yogurt. I need sweetener I only just use what tastes good to me which is and I'm sure you will cringe, equal. I'm not concerned at all about the health aspects I just care about taste and blood sugar at this point. Also good, but not refreshing is the Premier Protein chocolate and peanut butter some low carb milk I guess. Most of the protein powders don't taste so great and they have hidden carbs and they're too damn expensive to experiment with but I probably will. I never post anything online so I'm going to send this before I go back and erase it. The star fruit is horribly expensive I ordered a box of it from somewhere but you really really have to let them ripen which is a killer if your as impatient as I am and actually yell at your microwave to hurry the f up okay so I'm done now. I'm in the hospital and I have no one to talk to you does it show?
Melissa Russell says
New to smoothies but having fun. Thanks to all your great recipes and tips im not wasting alot of ingredients by trial and error! Thankyou!
Liana says
Best recipe ever! Thankyou for all of the recipes you post. You have made a difficult keto journey so much easier for me!❤️
Erica Reilly says
Hi do youave option to subscribe to you?
jenniferbanz says
Yes! Go to jenniferbanz.com and fill out the form on the top of the page
Jeremy says
Can I make these the night before? Or are they best to be made right before consuming?
jenniferbanz says
Best made right before drinking
Romy Hayward says
Could I substitute plain Greek yogurt for protein?
jenniferbanz says
Sure!
Robin says
SO happy I found your site! Thanks for these smoothie ideas. I'm studying up on IF and want to do it.
Suzanne Kennedy says
Hey Jennifer-
Love the green smoothies...working with a nutritionist who would love added avocado.. ginger .... whole lemon to that!
Hope you try it
francesca says
thank you for this inspiration :)!!!!! it's always great to find out new ideas!!!
jenniferbanz says
You're very welcome, Francesca!
Marisa Franca @ All Our Way says
I don't normally have a smoothie in place of meals but this smoothie certainly sounds very satisfactory. Now I'd like to have it after my workout. It would give me that added boost.
Claire | Sprinkles and Sprouts says
Wow!!! These are a powerhouse of nutrition!!!!!!
And your photos are just gorgeous.
Lfostry says
Looks great!!! Trying it for breakfast! Can you tell me what the macros would be?
jenniferbanz says
I added that info to the recipe card. Thanks!
Renna Hanlon says
Do you dissolve your matcha in boiling water first, or just add the powder to your smoothie?
jenniferbanz says
I just put it in there ?