This quick and easy keto green smoothie is ready in minutes, making it a perfect choice for busy mornings. It is creamy, refreshing, and full of bright lime flavor, with simple low carb ingredients that blend into a smooth and satisfying drink.

If you enjoy smoothies but want to keep your carbs low, this keto green smoothie is a simple recipe to keep on repeat. It comes together in just a few minutes and uses everyday low carb ingredients such as avocado, spinach, unsweetened almond milk, lime juice, and unflavored protein powder. The result is a creamy green smoothie that feels fresh, filling, and easy to drink.
This smoothie is especially useful when you need a quick breakfast, a light post-workout snack, or a refreshing low carb drink during the day. The avocado gives it a rich, silky texture, while the spinach blends in smoothly without overpowering the flavor. Lime juice adds brightness and helps balance the creaminess, making every sip taste clean and fresh.
Because this keto smoothie includes healthy fats, greens, and protein, it can help keep you satisfied for hours. It is not overly sweet, and the sweetener is completely optional. If you prefer a tangy smoothie, you can leave the sweetener out and let the lime flavor shine. If you like a softer, sweeter taste, add a small amount of your favorite sugar free sweetener and adjust it to your preference.
Are smoothies low carb, keto friendly?
Many traditional smoothies are not low carb because they are often made with high sugar fruits, fruit juice, sweetened yogurt, or regular milk. These ingredients can quickly increase the carb count, even when the smoothie looks healthy.
A smoothie can be keto friendly when it is made with low carb ingredients. For this recipe, avocado, spinach, unsweetened almond milk, lime juice, and unflavored whey protein powder are used to create a creamy, nutritious smoothie without adding unnecessary sugar. Choosing unsweetened milk and avoiding fruit juice are two easy ways to keep a green smoothie suitable for a low carb or keto lifestyle.

Ingredients in keto green smoothie
Unsweetened almond milk forms the liquid base of the smoothie. It keeps the drink light, creamy, and low in carbs.
Avocado adds healthy fat and gives the smoothie its thick, creamy texture. You can use fresh or frozen avocado.
Whey protein powder adds protein and makes the smoothie more satisfying. Unflavored protein powder works best because it does not change the taste or add hidden sugars.
Spinach blends easily and gives the smoothie its green color. Kale can be used instead if you prefer a stronger green flavor.
Lime juice adds freshness and a bright citrus taste. Lemon juice can also be used if that is what you have on hand.
Sugar free sweetener is optional. If you want a sweeter smoothie, try 1 tablespoon of erythritol, liquid stevia, sugar free syrup, or 1 envelope of a stevia monk fruit blend.
Ice cubes chill the smoothie and make it more refreshing.
How to make
Making this keto green smoothie is very simple. Start by gathering all of your ingredients so everything is ready to go. Cut the avocado in half and scoop out the flesh. Measure the protein powder, using half a scoop as written or increasing it if you want more protein. Slice the lime and squeeze out the juice. Then take a handful of spinach, which is roughly about one cup.

Add the avocado, spinach, lime juice, protein powder, unsweetened almond milk, ice cubes, and sweetener, if using, to a high powered blender.

Blend until the mixture is completely smooth and creamy. If your blender needs a little help, stop and scrape down the sides, then blend again until there are no pieces of spinach or avocado left.

Taste the smoothie before serving and adjust it to your liking. Add more lime juice if you want a brighter, tangier flavor. Add more almond milk if you prefer a thinner smoothie. If you are using sweetener, adjust it slowly so the smoothie does not become too sweet.
Optional ingredients for your low carb green smoothie
This low carb green smoothie is a great base recipe, and you can customize it depending on your taste and nutrition needs. Keep in mind that add-ins may change the texture, flavor, and nutrition values.
- Use kale instead of spinach for a stronger green smoothie.
- Add cucumber or zucchini to increase the vegetable content. About 1 cup of chopped vegetables works well.
- Add collagen if you want an additional protein option.
- Add MCT oil for extra fat.
- Add matcha powder for a slightly earthy flavor.
- Top the smoothie with hemp seeds or a small amount of low carb berries such as raspberries, blueberries, or blackberries.

This keto green smoothie tastes best when it is enjoyed fresh, right after blending. If you need to store it, the lime juice can help slow browning from the avocado. Keep it covered in the refrigerator and drink it within one day for the best flavor and texture.
Whether you need a quick keto breakfast, a creamy low carb snack, or a refreshing green smoothie without added sugar, this easy recipe is a simple and satisfying option.
Recipe
Easy Keto Green Smoothie (Low Carb)

Equipment
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Blender
Ingredients
- 1 cup almond milk unsweetened
- 1/2 avocado
- 1 cup spinach
- 1/2 scoop protein powder unflavored
- 1 to 2 tbsp lime juice
- 1 tbsp sugar free sweetener optional
- ice cubes
Optional add ins
- 1 tbsp hemp seeds
- 1 tsp MCT oil
- 1/2 tsp matcha powder
- collagen
Instructions
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Add the almond milk, avocado, spinach, protein powder, lime juice, ice cubes, and optional sweetener to a high powered blender.
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Blend until completely smooth and creamy.
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Taste and adjust with more lime juice, almond milk, or sweetener if needed. Serve immediately.
Notes
Sweetener is optional. For a sweeter smoothie, use erythritol, a stevia blend, liquid stevia, or sugar free syrup.
This smoothie tastes best fresh. If storing, keep it covered in the refrigerator for no more than one day.
This recipe makes one serving without optional add-ins and has 3g net carbs.
Nutrition
Total Carbs: 9 g |
Protein: 15.8 g |
Fat: 13.1 g |
Fiber: 6 g |
Net Carbs: 3 g