Easy Keto Lemon-Lime Soda Recipe

Breakfast, Vegetarian

March 9, 2026

Craving that crisp, bubbly satisfaction of a lemon-lime soda but want to skip the sugar and artificial junk? You’ve come to the right place! This homemade version is ridiculously easy to whip up, bursting with fresh citrus flavor, and is so much better for you. Get ready to quench your thirst with a sparkling, guilt-free treat that will have you saying goodbye to store-bought sodas for good.

Ingredients

• MAKES: 2 quarts / 1.9L (1 cup per serving) · PREP TIME: 10 minutes
• 1 cup / 192g powdered erythritol
• ½ cup / 120ml fresh lemon juice
• ½ cup / 120ml fresh lime juice
• 1 lemon, cut into slices
• 2 limes, cut into slices
• 6 cups / 1.4L club soda, chilled
• Ice, for serving (optional)
• Fresh mint sprigs, for garnish (optional)

Instructions

1. Directions
2. In a large pitcher, whisk together the powdered erythritol, fresh lemon juice, and fresh lime juice until the erythritol is fully dissolved. Add the lemon and lime slices.
3. Gently pour in the chilled club soda and give it a light stir to combine, being careful to preserve the carbonation.
4. Serve immediately over ice in chilled glasses. Garnish with fresh mint sprigs, if desired.

Nutritional Information

• Nutrition Information
• Per Serving (1 cup)
• CALORIES: 13
• FAT: 0.1g
• PROTEIN: 0.3g
• TOTAL CARBS: 4.2g
• FIBER: 0.6g
• NET CARBS: 3.5g
• ERYTHRITOL: 24g

Pro Tips

• For the coldest, most refreshing soda, ensure your juices, club soda, and even your serving glasses are well-chilled before mixing.
• Make a concentrate by preparing the citrus and erythritol syrup ahead of time. Store it in an airtight container in the fridge for up to a week and just top with club soda when ready to serve.
• Muddle a handful of fresh mint leaves or a few raspberries in the pitcher with the erythritol before adding the juice for an extra layer of flavor.

FAQ

Q: Can I use a different sweetener instead of erythritol
A: This recipe is optimized for powdered erythritol. While you can experiment with other sweeteners like stevia or monk fruit, you will need to adjust the amount to taste, as their sweetness levels differ.

Q: How long does this homemade soda last
A: For the best carbonation, this soda should be served immediately. However, you can prepare the citrus and erythritol syrup concentrate in advance and store it in the fridge for up to a week. Just add chilled club soda when you’re ready to drink.

Q: Is it okay to use bottled lemon and lime juice
A: Freshly squeezed lemon and lime juice is strongly recommended for the brightest, most authentic flavor. Bottled juices can have a different taste and may alter the quality of your homemade soda.

Q: How can I add other flavors to this soda
A: You can easily customize this drink. For a flavorful twist, try muddling a handful of fresh mint leaves or a few raspberries in the pitcher with the erythritol before adding the juice and club soda.

More Keto Recipes

A ceramic bowl filled with cooked Parmesan Cream Green Beans, featuring a rich, velvety sauce, visible specks of black pepper, and generously topped with finely grated Parmesan cheese.

Parmesan Cream Green Beans

Ingredients 10 oz (283g) fresh green beans, trimmed and halved 0.33 cup (30g) grated Parmesan cheese 2 oz (57g) cream cheese, softened 1 tbsp (3g) fresh dill, chopped 0.33 cup (79g) coconut cream 0.1 tsp (0.5g) salt 0.1 tsp (0.5g) black pepper Step-by-Step...

A female chef in an apron presenting a bowl of fresh, creamy coconut spinach in a kitchen setting, with an Instant Pot and ingredients visible in the background.

Creamy Coconut Spinach

Preparation Time: 5 minutes Cooking Time: 12 minutes Servings: 4 Ingredients: 1.5 lbs (24 oz / 680g) baby spinach 1 tbsp (0.1 oz / 3g) chopped cilantro 0.25 cups (2 fl oz / 60g) coconut cream 1 tbsp (0.2 oz / 7g) chili powder 0.1 tsp (0.5g) salt 0.1 tsp (0.5g) black...

A food blogger in a gray apron smiles as she holds up a rustic bowl of finished Tangy White Mushrooms garnished with rosemary, in a kitchen setting with an Instant Pot and a recipe book in the background.

Tangy White Mushrooms

Prep time: 10 minutes Cook time: 25 minutes Servings: 4 Ingredients 1.5 lb (24 oz / 680g) White mushrooms (sliced) 1 cup (8 fl oz / 240ml) Veggie stock 1 tbsp. (0.5 oz / 14g) Dill (freshly chopped) 1 tbsp. (0.5 oz / 14g) Rosemary (freshly chopped) 1 tbsp. (0.5 fl oz /...

A woman smiling in a bright kitchen, holding a rustic ceramic bowl filled with freshly cooked Balsamic Glazed Spinach, topped with chopped walnuts and chives.

Balsamic Glazed Spinach

How to Make Balsamic Glazed Spinach in the Instant Pot Prep Time: 5 minutes Cook Time: 12 minutes (including pressure release time) Servings: 4 Ingredients: Baby Spinach: 1.5 lbs (24 oz / 680g) Veggie Stock: 0.25 cups (2 fl oz / 60g) Walnuts (chopped): 1 tbsp. (0.5 oz...

A woman in an apron holds a steaming bowl of Cheesy Broccoli Bites with melted mozzarella and cilantro garnish, with an Instant Pot visible on a wooden countertop in the background.

Cheesy Broccoli Bites

Ingredients 1 lb (16 oz / 450g) Broccoli florets 0.5 cup (4 fl oz / 120ml) Veggie stock 2 whole (approx. 1.7 oz / 50g) Shallots, finely chopped 1 tbsp. (0.5 fl oz / 15ml) Olive oil (for sautéing) 1 cup (4 oz / 112g) Mozzarella cheese, shredded 1 tbsp. (0.1 oz / 4g)...

A smiling woman in a bright kitchen holding a rustic bowl of warm, freshly cooked Cabbage Radish Medley, featuring vibrant red cabbage and sliced radishes.

Cabbage Radish Medley

Ingredients To ensure culinary precision and consistent results, all ingredients are listed with both volume and weight measurements: 1 head Red cabbage (shredded) — approx. 4 cups (32 oz / 907g) 1 cup Radish (sliced) — (4.1 oz / 116g) 2 tbsp. Veggie stock — (1 oz /...

A close-up view of a smiling woman with medium-length wavy brown hair holding a rustic ceramic bowl filled with halved, tender, cooked Nutmeg Spiced Endives seasoned with ground nutmeg, chives, and olive oil, in a cozy kitchen.

Nutmeg Spiced Endives

Preparation Time: 10 minutes Cooking Time: 10 minutes Servings: 4 Ingredients Endives: 4 whole endives, trimmed and halved (approx. 14.1 oz / 400g) Water: 1 cup (8 fl oz / 240g) Nutmeg: 1 tsp. (0.07 oz / 2.1g) ground nutmeg Chives: 1 tbsp. (0.1 oz / 3g) fresh chopped...

A smiling woman in a kitchen holds up a rustic bowl of creamy Brussels Sprouts Cream, garnished with halved Brussels sprouts and chives, with an Instant Pot and wooden utensils visible in the background.

Brussels Sprouts Cream

Ingredients For maximum accuracy in the kitchen, I have provided precise measurements using volume, imperial, and metric weights. Olive oil: 1.0 tbsp. (0.5 oz / 15g) Shallots: 2.0 medium, chopped (2.0 oz / 55g) Coconut cream: 1.0 cup (8.5 oz / 240g) Chicken stock: 1.0...

A smiling chef wearing a striped apron comfortably holding a warm, rustic bowl of blended cheesy broccoli with chives, with an Instant Pot and fresh ingredients in the background.

Cheesy Broccoli with Chives

Ingredients 2 cups (8 oz / 225g) Shredded cheddar cheese 1 medium (10.6 oz / 300g) Broccoli head; florets separated 1 tbsp. (0.1 oz / 3g) Chopped fresh chives 4 cups (32 fl oz / 946g) Chicken stock 1 cup (8 fl oz / 240g) Coconut cream 0.25 tsp. (0.03 oz / 0.8g) Garlic...

A ceramic bowl filled with cooked Parmesan Cream Green Beans, featuring a rich, velvety sauce, visible specks of black pepper, and generously topped with finely grated Parmesan cheese.

Parmesan Cream Green Beans

Ingredients 10 oz (283g) fresh green beans, trimmed and halved 0.33 cup (30g) grated Parmesan cheese 2 oz (57g) cream cheese, softened 1 tbsp (3g) fresh dill, chopped 0.33 cup (79g) coconut cream 0.1 tsp (0.5g) salt 0.1 tsp (0.5g) black pepper Step-by-Step...

A female chef in an apron presenting a bowl of fresh, creamy coconut spinach in a kitchen setting, with an Instant Pot and ingredients visible in the background.

Creamy Coconut Spinach

Preparation Time: 5 minutes Cooking Time: 12 minutes Servings: 4 Ingredients: 1.5 lbs (24 oz / 680g) baby spinach 1 tbsp (0.1 oz / 3g) chopped cilantro 0.25 cups (2 fl oz / 60g) coconut cream 1 tbsp (0.2 oz / 7g) chili powder 0.1 tsp (0.5g) salt 0.1 tsp (0.5g) black...

A food blogger in a gray apron smiles as she holds up a rustic bowl of finished Tangy White Mushrooms garnished with rosemary, in a kitchen setting with an Instant Pot and a recipe book in the background.

Tangy White Mushrooms

Prep time: 10 minutes Cook time: 25 minutes Servings: 4 Ingredients 1.5 lb (24 oz / 680g) White mushrooms (sliced) 1 cup (8 fl oz / 240ml) Veggie stock 1 tbsp. (0.5 oz / 14g) Dill (freshly chopped) 1 tbsp. (0.5 oz / 14g) Rosemary (freshly chopped) 1 tbsp. (0.5 fl oz /...

A woman smiling in a bright kitchen, holding a rustic ceramic bowl filled with freshly cooked Balsamic Glazed Spinach, topped with chopped walnuts and chives.

Balsamic Glazed Spinach

How to Make Balsamic Glazed Spinach in the Instant Pot Prep Time: 5 minutes Cook Time: 12 minutes (including pressure release time) Servings: 4 Ingredients: Baby Spinach: 1.5 lbs (24 oz / 680g) Veggie Stock: 0.25 cups (2 fl oz / 60g) Walnuts (chopped): 1 tbsp. (0.5 oz...

0
Would love your thoughts, please comment.x
()
x
0