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I made this cucumber lemonade on a random Tuesday afternoon last summer. It was 98 degrees in Austin, I’d just finished a sweaty workout, and I was about two seconds away from grabbing a sugary sports drink from the fridge. But I had cucumbers that were about to go bad. And half a bag of lemons.

So I threw them together. And honestly? It changed my entire approach to staying hydrated during weight loss.

Here’s the thing about losing weight. Everyone talks about what you eat. But what you drink? That’s where so many calories hide. A single glass of regular lemonade from a restaurant can pack 200 calories. Sometimes more. That’s basically a small meal’s worth of sugar water.

This fresh cucumber lemonade comes in at just 15 calories per glass. Fifteen. You can drink three glasses and still be under the calorie count of one store-bought lemonade.

Why Cucumber and Lemon Actually Work for Weight Loss

I’m not going to pretend this drink has magical fat-burning powers. It doesn’t. No drink does, despite what some influencers want you to believe.

But here’s what it does do.

Cucumbers are about 95% water. They’re incredibly hydrating, which matters because your body often confuses thirst for hunger. I used to reach for snacks at 3pm every single day. Turns out I was just dehydrated. When I started drinking more flavored water like this, those fake hunger pangs disappeared.

Lemons add vitamin C and a tangy flavor that makes plain water actually exciting. And when water tastes good, you drink more of it. Simple as that.

The combination also supports digestion. Not in some dramatic cleanse-your-system way. Just gentle, natural support. Cucumbers contain fiber and lemons can help stimulate digestive enzymes. Nothing revolutionary, but it helps.

If you’re looking for more refreshing options, check out our low-calorie smoothie recipes for other drink ideas that won’t wreck your calorie budget.

The Best Cucumbers to Use

English cucumbers work best here. They have thinner skin, fewer seeds, and a milder flavor. Regular cucumbers are fine too – just peel them first because the skin can taste bitter.

I buy the organic ones when they’re on sale. Not because I think they’re nutritionally superior, but because cucumber skin absorbs a lot of pesticides. Since we’re using the whole thing (skin and all with English cucumbers), organic makes sense.

Whatever you do, don’t use old, soft cucumbers. They’ll make your lemonade taste sad. Trust me. I learned this the hard way.

Fresh Cucumber Lemonade for Weight Loss

A crisp, refreshing drink that supports your weight loss goals with minimal calories and maximum flavor.

Prep Time: 10 minutes
Total Time: 10 minutes (plus 30 minutes chilling)
Servings: 6 glasses
Calories per serving: 15

Ingredients

• 1 large English cucumber
• 4 large lemons
• 6 cups cold water
• 2 tablespoons honey or stevia to taste (optional)
• Fresh mint leaves (optional)
• Ice cubes

Instructions

1. Wash the cucumber thoroughly. Slice off about 6-8 thin rounds and set them aside for garnish. Chop the rest into chunks.
2. Cut the lemons in half and juice them. You should get about 3/4 cup of fresh lemon juice. Remove any seeds that fall in.
3. Add the cucumber chunks and lemon juice to a blender. Pour in 2 cups of the water. Blend until completely smooth, about 30-45 seconds.
4. Set a fine mesh strainer over a large pitcher. Pour the cucumber mixture through it, pressing down with a spoon to get all the liquid out. Discard the pulp (or save it for a face mask – it works great, actually).
5. Add the remaining 4 cups of cold water to the pitcher. Stir in honey or stevia if you’re using it. I usually skip the sweetener entirely, but my husband likes a tiny bit of honey.
6. Refrigerate for at least 30 minutes. The flavors need time to blend together.
7. Serve over ice with cucumber slices and fresh mint. The mint isn’t just for looks – it adds a nice cooling element.

Recipe Notes

Make it sparkling: Replace half the still water with sparkling water right before serving. Add it after the chilling time so it stays fizzy.

Meal prep friendly: This keeps in the fridge for 2-3 days. After that, it gets a bit cloudy and loses its fresh taste. I usually make a batch on Sunday for the week ahead.

Adjust the tartness: Some people find straight lemon juice too sour. Start with 3 lemons and add more if needed.

This pairs perfectly with our low-calorie lunch recipes for work when you need something refreshing at your desk.

When to Drink It for Best Results

I have a glass first thing in the morning before coffee. It wakes up my digestive system and helps me start the day hydrated. Then I sip on it throughout the afternoon when I’d normally reach for something sweet.

Some people drink it before meals to help with portion control. The water fills your stomach slightly, which can help you eat less. I’ve noticed this works especially well before dinner when I’m most likely to overeat.

During summer, I basically live on this stuff. It’s so much more satisfying than plain water, and way better for weight loss than iced tea loaded with sugar.

If you’re tracking your intake with apps like MyFitnessPal, this is easy to log since the calories are minimal. Just don’t forget to count any honey or sweetener you add.

Storage Tips

Keep it in a glass pitcher if you have one. Plastic can absorb flavors and cucumber lemonade stored in plastic sometimes tastes slightly off after a day or two.

Always store it covered. Cucumber absorbs odors from your fridge like nobody’s business. Ask me how I know. (My lemonade once tasted faintly like leftover Chinese food. Not great.)

Don’t freeze it. The texture gets weird when it thaws. If you want it extra cold, just add more ice.

For more make-ahead drink and snack ideas, our low-calorie snacks under 100 calories has tons of options.

This article is part of our complete guide on low-calorie weight loss recipes. For more summer-friendly options, check out our low-calorie recipes for summer.

Fresh Cucumber Lemonade for Weight Loss

Crisp, refreshing, and only 15 calories per glass

★★★★★ 4.8 from 127 reviews

Prep Time 10 min

Chill Time 30 min

Servings 6 glasses

Calories 15 cal

A crisp, refreshing cucumber lemonade that supports your weight loss goals with minimal calories and maximum flavor. This hydrating drink is perfect for hot summer days or as a healthy alternative to sugary beverages.

Ingredients

• 1 large English cucumber
• 4 large lemons
• 6 cups cold water
• 2 tablespoons honey or stevia to taste (optional)
• Fresh mint leaves (optional)
• Ice cubes

Instructions

1. Wash the cucumber thoroughly. Slice off about 6-8 thin rounds and set them aside for garnish. Chop the rest into chunks.
2. Cut the lemons in half and juice them. You should get about 3/4 cup of fresh lemon juice. Remove any seeds that fall in.
3. Add the cucumber chunks and lemon juice to a blender. Pour in 2 cups of the water. Blend until completely smooth, about 30-45 seconds.
4. Set a fine mesh strainer over a large pitcher. Pour the cucumber mixture through it, pressing down with a spoon to get all the liquid out. Discard the pulp.
5. Add the remaining 4 cups of cold water to the pitcher. Stir in honey or stevia if you’re using it.
6. Refrigerate for at least 30 minutes. The flavors need time to blend together.
7. Serve over ice with cucumber slices and fresh mint for garnish. Enjoy!

Nutrition Facts

Per serving (1 glass / 8 oz)

15 Calories

4g Carbs

2g Sugar

0.5g Protein

0g Fat

2mg Sodium

Recipe Notes

• Make it sparkling: Replace half the still water with sparkling water right before serving.
• Meal prep friendly: Keeps in the fridge for 2-3 days. Make a batch on Sunday for the week.
• Adjust tartness: Start with 3 lemons and add more if needed.

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